Adhesive Shims | McMaster-Carr

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Material

1008-1010 Low-Carbon Steel

Material Thickness

Width

Shape

Length

Adhesive Thickness

Temper Rating

Screw Size

Specifications Met

Performance

Form

Minimum Hardness

Magnetic Properties

May Be Mildly Magnetic

Nonmagnetic

DFARS Specialty Metals

Compliant

Exempt

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Export Control Classification Number (ECCN)

EAR99

REACH

Compliant

RoHS

Compliant

Compliant with Exemptions

Maximum Temperature

200° F

250° F

Number of Layers

Maximum Shim Size

Minimum Temperature

Maximum Hardness

251 Products

Adhesive-Back Shim Stock

Stick with confidence—a durable adhesive keeps this shim stock from sliding out of place. Cut the shim stock into custom shapes to create shims that suit your needs. With thickness tolerances as fine as a strand of hair, the shims will precisely align, space, and level components on dies, presses, and machinery.

Sheets—Shim stock comes in sheets that are flat packed.

18-8 Stainless Steel—The choice for wet and outdoor areas because it resists rust. However, it will corrode or pit when exposed to salt water and chemicals.

Super-Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, it won't degrade when exposed to harsh weather, salt water, and most chemicals.

Aluminum—An alternative to stainless steel for rust resistance but less hard so it may not retain its shape. One-third the weight of steel, it's often used in robotics and automation.

Brass—Picked for its warm, polished look. Similar to 18-8 stainless steel, it resists rusting in wet and outdoor areas.

Copper—A good conductor of heat, it’s often used to install heat sinks. As our softest metal, it prevents component damage but may not retain its shape as well as other metals.

Temper Rating—Choose half hard to create shims that you’ll need to bend or shape. Opt for full hard to make stronger shims that will maintain their shape under loads.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

							Certificate
	Thk.	Thk. Tolerance	Material Thk.	Adhesive Thk.	Adhesive Type	Temper Rating	Type	Form	Specs. Met	Form		Each
18-8 Stainless Steel





				8" Wide × 12" Long
				0.003"	-0.00005" to 0.00005"	0.001"	0.002"	Acrylic	Full Hard	Material Certificate	Digital	ASTM A666	Sheet	0000000	000000
				0.004"	-0.0001" to 0.0001"	0.002"	0.002"	Acrylic	Full Hard	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
				0.005"	-0.00015" to 0.00015"	0.003"	0.002"	Acrylic	Full Hard	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
				0.006"	-0.002" to 0.002"	0.004"	0.002"	Acrylic	Full Hard	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
				0.007"	-0.00025" to 0.00025"	0.005"	0.002"	Acrylic	Full Hard	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
				0.008"	-0.0003" to 0.0003"	0.006"	0.002"	Acrylic	Full Hard	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
				0.009"	-0.00035" to 0.00035"	0.007"	0.002"	Acrylic	Full Hard	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
				0.01"	-0.0004" to 0.0004"	0.008"	0.002"	Acrylic	Full Hard	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
				0.011"	-0.00045" to 0.00045"	0.009"	0.002"	Acrylic	Full Hard	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
				0.012"	-0.0005" to 0.0005"	0.01"	0.002"	Acrylic	Full Hard	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
				0.014"	-0.0006" to 0.0006"	0.012"	0.002"	Acrylic	Full Hard	Material Certificate	Digital	ASTM A666	Sheet	0000000	00000
				0.017"	-0.0009" to 0.0009"	0.015"	0.002"	Acrylic	Full Hard	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
				0.022"	-0.001" to 0.001"	0.02"	0.002"	Acrylic	Full Hard	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
				0.027"	-0.001" to 0.001"	0.025"	0.002"	Acrylic	Full Hard	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
				0.033"	-0.001" to 0.001"	0.031"	0.002"	Acrylic	Full Hard	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000

				Super-Corrosion-Resistant 316 Stainless Steel





								8" Wide × 12" Long
								0.004"	-0.0001" to 0.0001"	0.002"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
								0.005"	-0.00015" to 0.00015"	0.003"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
								0.006"	-0.0002" to 0.0002"	0.004"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
								0.007"	-0.00025" to 0.00025"	0.005"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
								0.008"	-0.0003" to 0.0003"	0.006"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
								0.009"	-0.00035" to 0.00035"	0.007"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
								0.01"	-0.0004" to 0.0004"	0.008"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
								0.012"	-0.0005" to 0.0005"	0.01"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
								0.014"	-0.0006" to 0.0006"	0.012"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
								0.017"	-0.001" to 0.001"	0.015"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
								0.022"	-0.001" to 0.001"	0.02"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
								0.027"	-0.001" to 0.001"	0.025"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000
								0.033"	-0.001" to 0.001"	0.031"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM A666	Sheet	00000000	00000

								Aluminum





												6" Wide × 12" Long
												0.003"	-0.0001" to 0.0001"	0.001"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B479	Sheet	00000000	00000
												0.004"	-0.0002" to 0.0002"	0.002"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B479	Sheet	00000000	00000
												0.005"	-0.0003" to 0.0003"	0.003"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B479	Sheet	0000000	00000
												0.006"	-0.0004" to 0.0004"	0.004"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B479	Sheet	00000000	00000
												0.007"	-0.0005" to 0.0005"	0.005"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B479	Sheet	00000000	00000
												0.008"	-0.0006" to 0.0006"	0.006"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B209	Sheet	00000000	00000
												0.01"	-0.0008" to 0.0008"	0.008"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B209	Sheet	00000000	00000
												0.012"	-0.001" to 0.001"	0.01"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B209	Sheet	00000000	00000
												0.017"	-0.0015" to 0.0015"	0.015"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B209	Sheet	00000000	00000
												0.022"	-0.002" to 0.002"	0.02"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B209	Sheet	00000000	00000
												0.034"	-0.002" to 0.002"	0.032"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B209	Sheet	00000000	00000
												0.042"	-0.004" to 0.004"	0.04"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B209	Sheet	00000000	00000
												0.052"	-0.0045" to 0.0045"	0.05"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B209	Sheet	00000000	00000
												0.065"	-0.0045" to 0.0045"	0.063"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B209	Sheet	00000000	00000
0.082"												-0.0045" to 0.0045"	0.08"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B209	Sheet	00000000	00000
0.092"	-0.0045" to 0.0045"											0.09"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B209	Sheet	00000000	00000

Brass





												8" Wide × 12" Long
												0.003"	-0.0001" to 0.0001"	0.001"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	00000000	00000
												0.004"	-0.0002" to 0.0002"	0.002"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	00000000	00000
												0.005"	-0.0003" to 0.0003"	0.003"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	00000000	00000
												0.006"	-0.0004" to 0.0004"	0.004"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	00000000	00000
												0.007"	-0.0005" to 0.0005"	0.005"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	00000000	00000
												0.008"	-0.0006" to 0.0006"	0.006"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	0000000	00000
												0.01"	-0.0008" to 0.0008"	0.008"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	00000000	00000
												0.012"	-0.001" to 0.001"	0.01"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	00000000	00000
												0.014"	-0.0012" to 0.0012"	0.012"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	00000000	00000
												0.017"	-0.0015" to 0.0015"	0.015"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	00000000	00000
												0.022"	-0.002" to 0.002"	0.02"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	00000000	00000
												0.027"	-0.0025" to 0.0025"	0.025"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	00000000	00000
												0.033"	-0.003" to 0.003"	0.031"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	00000000	00000

				Copper





												6" Wide × 12" Long
												0.017"	-0.0009" to 0.0009"	0.015"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B152	Sheet	00000000	00000
												0.022"	-0.001" to 0.001"	0.02"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B152	Sheet	00000000	00000
												0.027"	-0.001" to 0.001"	0.025"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B152	Sheet	00000000	00000

Tape-Style Shim Stock

Unroll to your desired length, cut into custom shapes, and stick in place. With thickness tolerances as fine as a strand of hair, the shims you create will precisely align, space, and level components on dies, presses, and machinery.

18-8 Stainless Steel—The choice for wet and outdoor areas because it resists rust. However, it will corrode or pit when exposed to salt water and chemicals.

	Lg., ft.	Thk.	Thk. Tolerance	Material Thk.	Adhesive Type	Adhesive Thk.		Each
18-8 Stainless Steel


	1/4"	9	0.004"	-0.0004" to 0.0004"	0.002"	Acrylic	0.002"	0000000	00000
	3/8"	9	0.004"	-0.0004" to 0.0004"	0.002"	Acrylic	0.002"	00000000	0000
	1/2"	9	0.004"	-0.0004" to 0.0004"	0.002"	Acrylic	0.002"	0000000	0000
	5/8"	9	0.004"	-0.0004" to 0.0004"	0.002"	Acrylic	0.002"	00000000	00000
	3/4"	9	0.004"	-0.0004" to 0.0004"	0.002"	Acrylic	0.002"	0000000	00000
	1"	9	0.004"	-0.0004" to 0.0004"	0.002"	Acrylic	0.002"	0000000	00000
	1 1/2"	9	0.004"	-0.0004" to 0.0004"	0.002"	Acrylic	0.002"	0000000	00000
	2"	9	0.004"	-0.0004" to 0.0004"	0.002"	Acrylic	0.002"	0000000	00000
	3"	9	0.004"	-0.0004" to 0.0004"	0.002"	Acrylic	0.002"	0000000	00000

Peel-Away Multilayer Shims

Image of Product. Front orientation. Shims. Sold Individually, Peel Away, Multilayer, Round.

Fine-tune thickness without worrying about stacking multiple shims. These shims are made of metal layers bonded with adhesive—peel off the layers with a utility knife until you reach your desired thickness. To make peeling easier, warm the shims to soften the adhesive. With thickness tolerances as fine as a strand of hair, all of these shims precisely align, space, and level components on shafts, arbors, and machinery.

18-8 Stainless Steel—The choice for wet and outdoor environments, these shims resist rust. However, they’ll corrode or pit when exposed to salt water and chemicals.

Aluminum—These shims are an alternative to stainless steel for rust resistance but aren't as hard so they may not retain their shape as well. One-third the weight of steel, they’re commonly used in robotics and automation.

Brass—With a warm, polished look, these shims are often chosen for their appearance. Similar to 18-8 stainless steel, brass is corrosion resistant enough to stand up to wet environments.

	Thk. Tolerance	ID Tolerance	OD Tolerance	No. of Layers	Layer Thk.	Min. Hardness	Specs. Met	Mil. Spec.		Each
18-8 Stainless Steel





			3/8" ID × 5/8" OD
			0.032"	-0.005" to 0.005"	-0.01" to 0.01"	-0.01" to 0.01"	16	0.002"	Rockwell B75	ASTM A666	—	000000000	000000
			0.062"	-0.002" to 0.006"	-0.01" to 0.01"	-0.01" to 0.01"	31	0.002"	Rockwell B75	ASTM A666	—	000000000	00000



					1/2" ID × 3/4" OD
					0.032"	-0.005" to 0.005"	-0.01" to 0.01"	-0.01" to 0.01"	16	0.002"	Rockwell B75	ASTM A666	—	000000000	00000
					0.062"	-0.002" to 0.006"	-0.01" to 0.01"	-0.01" to 0.01"	31	0.002"	Rockwell B75	ASTM A666	—	000000000	00000



							5/8" ID × 1" OD
							0.032"	-0.005" to 0.005"	-0.01" to 0.01"	-0.01" to 0.01"	16	0.002"	Rockwell B75	ASTM A666	—	000000000	00000
							0.062"	-0.002" to 0.006"	-0.01" to 0.01"	-0.01" to 0.01"	31	0.002"	Rockwell B75	ASTM A666	—	000000000	00000
							0.125"	-0.005" to 0.005"	-0.01" to 0.01"	-0.01" to 0.01"	62	0.002"	Rockwell B75	ASTM A666	—	000000000	00000



									3/4" ID × 1 1/8" OD
									0.125"	-0.005" to 0.005"	-0.01" to 0.01"	-0.01" to 0.01"	62	0.002"	Rockwell B75	ASTM A666	—	000000000	00000



											7/8" ID × 1 3/8" OD
											0.125"	-0.005" to 0.005"	-0.01" to 0.01"	-0.01" to 0.01"	62	0.002"	Rockwell B75	ASTM A666	—	000000000	00000

											Aluminum





															3/8" ID × 5/8" OD
															0.032"	-0.002" to 0.003"	-0.01" to 0.01"	-0.01" to 0.01"	16	0.002"	Not Rated	—	—	000000000	0000
															0.062"	-0.002" to 0.006"	-0.01" to 0.01"	-0.01" to 0.01"	31	0.002"	Not Rated	—	—	000000000	0000



																	1/2" ID × 3/4" OD
																	0.032"	-0.002" to 0.003"	-0.01" to 0.01"	-0.01" to 0.01"	16	0.002"	Not Rated	—	—	000000000	0000
																	0.062"	-0.002" to 0.006"	-0.01" to 0.01"	-0.01" to 0.01"	31	0.002"	Not Rated	—	—	000000000	00000



																			5/8" ID × 1" OD
																			0.032"	-0.002" to 0.003"	-0.01" to 0.01"	-0.01" to 0.01"	16	0.002"	Not Rated	—	—	000000000	00000
																			0.125"	-0.003" to 0.012"	-0.01" to 0.01"	-0.01" to 0.01"	62	0.002"	Not Rated	—	—	000000000	00000



																					1" ID × 1 1/2" OD
																					0.062"	-0.002" to 0.006"	-0.01" to 0.01"	-0.01" to 0.01"	31	0.002"	Not Rated	—	—	000000000	00000
																					0.125"	-0.003" to 0.012"	-0.01" to 0.01"	-0.01" to 0.01"	62	0.002"	Not Rated	—	—	000000000	00000



																							1 1/2" ID × 2 1/8" OD
																							0.125"	-0.003" to 0.012"	-0.01" to 0.01"	-0.01" to 0.01"	62	0.002"	Not Rated	—	—	000000000	00000

Brass





																							0.135" ID × 0.234" OD
																							0.032"	-0.005" to 0.005"	-0.01" to 0.01"	-0.01" to 0.01"	16	0.002"	Not Rated	—	—	000000000	0000



																							0.193" ID × 3/8" OD
																							0.032"	-0.005" to 0.005"	-0.01" to 0.01"	-0.01" to 0.01"	16	0.002"	Not Rated	—	—	000000000	0000



						0.255" ID × 1/2" OD
						0.032"																		-0.005" to 0.005"	-0.01" to 0.01"	-0.01" to 0.01"	16	0.002"	Not Rated	—	—	000000000	0000



																									3/8" ID × 5/8" OD
																									0.032"	-0.005" to 0.005"	-0.01" to 0.01"	-0.01" to 0.01"	16	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000
							0.062"																		-0.002" to 0.006"	-0.01" to 0.01"	-0.01" to 0.01"	31	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000



																									1/2" ID × 3/4" OD
									0.032"																-0.005" to 0.005"	-0.01" to 0.01"	-0.01" to 0.01"	16	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000
									0.062"	-0.002" to 0.006"															-0.01" to 0.01"	-0.01" to 0.01"	31	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000



											5/8" ID × 1" OD
											0.032"														-0.005" to 0.005"	-0.01" to 0.01"	-0.01" to 0.01"	16	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000
											0.062"	-0.002" to 0.006"													-0.01" to 0.01"	-0.01" to 0.01"	31	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000
											0.125"	-0.003" to 0.012"													-0.01" to 0.01"	-0.01" to 0.01"	62	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000



													3/4" ID × 1 1/8" OD
													0.032"	-0.005" to 0.005"											-0.01" to 0.01"	-0.01" to 0.01"	16	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000
													0.062"	-0.002" to 0.006"											-0.01" to 0.01"	-0.01" to 0.01"	31	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000
													0.125"	-0.003" to 0.012"											-0.01" to 0.01"	-0.01" to 0.01"	62	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000



															7/8" ID × 1 3/8" OD
															0.032"	-0.005" to 0.005"									-0.01" to 0.01"	-0.01" to 0.01"	16	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000
															0.062"	-0.002" to 0.006"									-0.01" to 0.01"	-0.01" to 0.01"	31	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000
															0.125"	-0.003" to 0.012"									-0.01" to 0.01"	-0.01" to 0.01"	62	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000



																	1" ID × 1 1/2" OD
																	0.032"	-0.005" to 0.005"							-0.01" to 0.01"	-0.01" to 0.01"	16	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000
																	0.062"	-0.002" to 0.006"							-0.01" to 0.01"	-0.01" to 0.01"	31	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000
																	0.125"	-0.003" to 0.012"							-0.01" to 0.01"	-0.01" to 0.01"	62	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000



																			1 1/4" ID × 1 3/4" OD
																			0.032"	-0.005" to 0.005"					-0.01" to 0.01"	-0.01" to 0.01"	16	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000
																			0.062"	-0.002" to 0.006"					-0.01" to 0.01"	-0.01" to 0.01"	31	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000
																			0.125"	-0.003" to 0.012"					-0.01" to 0.01"	-0.01" to 0.01"	62	0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000



	1 1/2" ID × 2 1/8" OD
	0.032"																		-0.005" to 0.005"	-0.01" to 0.01"	-0.01" to 0.01"	16			0.002"	Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000
	0.062"	-0.002" to 0.006"																	-0.01" to 0.01"	-0.01" to 0.01"	31	0.002"			Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000
	0.125"	-0.003" to 0.012"																	-0.01" to 0.01"	-0.01" to 0.01"	62	0.002"			Not Rated	ASTM B36, SAE AMS-DTL-22499	MIL-S-5697	000000000	00000

Peel-Away Multilayer Made-to-Order Shims

Image of Product. Front orientation. Shims. Multilayer, Sold Individually, Made-to-Order, Peel Away.

If you need a unique peel-away shim shape or size, we’ll precision cut it for you. Use these shims to fine-tune thickness without worrying about stacking multiple shims. They're made of metal layers bonded with adhesive—peel off the layers with a utility knife until you reach your desired thickness. To make peeling easier, warm the shims to soften the adhesive. With thickness tolerances as fine as a strand of hair, all of these shims precisely align, space, and level components on shafts, arbors, and machinery.

Send your dimensioned DWG, DXF, IGES, or STEP file to sales@mcmaster.com. Please leave at least _1/8" wall between shim edge and holes. Minimum hole size is _1/4". Shims should be no smaller than 1" × 1" square or 1" OD. Maximum shim dimension is the largest overall length, width, or diameter of your custom shim.

18-8 Stainless Steel—The choice for wet and outdoor environments, these shims resist rust. However, they’ll corrode or pit when exposed to salt water and chemicals.

Carbon Steel—Best for dry environments since moisture will cause these shims to rust.

Brass—With a warm, polished look, these shims are often chosen for their appearance. Similar to 18-8 stainless steel, brass is corrosion resistant enough to stand up to wet environments.

Material Certificate—Shims include a report with a traceable lot number.

								2" × 2" Maximum Shim Size			5" × 5" Maximum Shim Size			7" × 7" Maximum Shim Size			11" × 11" Maximum Shim Size			23" × 23" Maximum Shim Size
	Thk.	Thk. Tolerance	No. of Layers	Layer Thk.	Min. Hardness	Certificate Type	Specs. Met	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
18-8 Stainless Steel


		0.008"	-0.0004" to 0.0004"	4	0.002"	Rockwell B80	Material Certificate	ASTM A240	16	000000000	0000000	4	000000000	0000000	9	000000000	0000000	4	000000000	0000000	1	000000000	0000000
		0.016"	-0.0008" to 0.0008"	8	0.002"	Rockwell B80	Material Certificate	ASTM A240	16	000000000	000000	4	000000000	000000	9	000000000	000000	4	000000000	000000	1	000000000	000000
		0.032"	-0.0016" to 0.0016"	16	0.002"	Rockwell B80	Material Certificate	ASTM A240	16	000000000	000000	4	000000000	000000	9	000000000	000000	4	000000000	000000	1	000000000	000000
		0.048"	-0.0024" to 0.0024"	24	0.002"	Rockwell B80	Material Certificate	ASTM A240	16	000000000	000000	4	000000000	000000	9	000000000	000000	4	000000000	000000	1	000000000	000000
		0.062"	-0.0031" to 0.0031"	32	0.002"	Rockwell B80	Material Certificate	ASTM A240	16	000000000	000000	4	000000000	000000	9	000000000	000000	4	000000000	000000	1	000000000	000000
		0.124"	-0.0062" to 0.0062"	62	0.002"	Rockwell B80	Material Certificate	ASTM A240	16	000000000	000000	4	000000000	000000	9	000000000	00000000	4	000000000	00000000	1	000000000	00000000

		Carbon Steel


				0.008"	-0.0004" to 0.0004"	4	0.002"	Rockwell B54	Material Certificate	Fed. Spec. QQ-S-698	16	000000000	00000	4	000000000	00000	9	000000000	000000	4	000000000	000000	1	000000000	000000
				0.016"	-0.0008" to 0.0008"	8	0.002"	Rockwell B54	Material Certificate	Fed. Spec. QQ-S-698	16	000000000	00000	4	000000000	00000	9	000000000	000000	4	000000000	000000	1	000000000	000000
				0.032"	-0.0016" to 0.0016"	16	0.002"	Rockwell B54	Material Certificate	Fed. Spec. QQ-S-698	16	000000000	000000	4	000000000	000000	9	000000000	000000	4	000000000	000000	1	000000000	000000
				0.048"	-0.0024" to 0.0024"	24	0.002"	Rockwell B54	Material Certificate	Fed. Spec. QQ-S-698	16	000000000	000000	4	000000000	000000	9	000000000	000000	4	000000000	000000	1	000000000	000000
				0.062"	-0.0031" to 0.0031"	32	0.002"	Rockwell B54	Material Certificate	Fed. Spec. QQ-S-698	16	000000000	000000	4	000000000	000000	9	000000000	000000	4	000000000	000000	1	000000000	000000
				0.124"	-0.0062" to 0.0062"	62	0.002"	Rockwell B54	Material Certificate	Fed. Spec. QQ-S-698	16	000000000	000000	4	000000000	000000	9	000000000	000000	4	000000000	000000	1	000000000	000000

				Aluminum


						0.008"	-0.0004" to 0.0004"	4	0.002"	Not Rated	Material Certificate	ASTM B209, SAE AMS-DTL-22499	16	000000000	00000	4	000000000	00000	9	000000000	000000	4	000000000	000000	1	000000000	000000
						0.016"	-0.0008" to 0.0008"	8	0.002"	Not Rated	Material Certificate	ASTM B209, SAE AMS-DTL-22499	16	000000000	00000	4	000000000	00000	9	000000000	000000	4	000000000	000000	1	000000000	000000
						0.032"	-0.0016" to 0.0016"	16	0.002"	Not Rated	Material Certificate	ASTM B209, SAE AMS-DTL-22499	16	000000000	00000	4	000000000	00000	9	000000000	000000	4	000000000	000000	1	000000000	000000
						0.048"	-0.0024" to 0.0024"	24	0.002"	Not Rated	Material Certificate	ASTM B209, SAE AMS-DTL-22499	16	000000000	00000	4	000000000	00000	9	000000000	000000	4	000000000	000000	1	000000000	000000
						0.062"	-0.0031" to 0.0031"	32	0.002"	Not Rated	Material Certificate	ASTM B209, SAE AMS-DTL-22499	16	000000000	00000	4	000000000	00000	9	000000000	000000	4	000000000	000000	1	000000000	000000
						0.124"	-0.0062" to 0.0062"	62	0.002"	Not Rated	Material Certificate	ASTM B209, SAE AMS-DTL-22499	16	000000000	000000	4	000000000	000000	9	000000000	000000	4	000000000	000000	1	000000000	000000

						Brass


								0.008"	-0.0004" to 0.0004"	4	0.002"	Not Rated	Material Certificate	ASTM B36	16	000000000	000000	4	000000000	000000	9	000000000	000000	4	000000000	000000	1	000000000	000000
								0.016"	-0.0008" to 0.0008"	8	0.002"	Not Rated	Material Certificate	ASTM B36	16	000000000	000000	4	000000000	000000	9	000000000	000000	4	000000000	000000	1	000000000	000000
								0.032"	-0.0016" to 0.0016"	16	0.002"	Not Rated	Material Certificate	ASTM B36	16	000000000	000000	4	000000000	000000	9	000000000	000000	4	000000000	000000	1	000000000	000000
								0.048"	-0.0024" to 0.0024"	24	0.002"	Not Rated	Material Certificate	ASTM B36	16	000000000	000000	4	000000000	000000	9	000000000	000000	4	000000000	000000	1	000000000	000000
								0.062"	-0.0031" to 0.0031"	32	0.002"	Not Rated	Material Certificate	ASTM B36	16	000000000	000000	4	000000000	000000	9	000000000	000000	4	000000000	000000	1	000000000	000000
								0.124"	-0.0062" to 0.0062"	62	0.002"	Not Rated	Material Certificate	ASTM B36	16	000000000	000000	4	000000000	000000	9	000000000	00000000	4	000000000	00000000	1	000000000	00000000

Adhesive-Back Washers

Stick these washers on your mounting surface, and they won't slip out of position while you fasten. They take the pressure off screws and nuts to protect your material.

Stainless Steel About Stainless Steel

Super-Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these washers won't degrade when exposed to harsh weather, salt water, and most chemicals.

					Adhesive		Temp. Range, ° F
	For Screw Size	ID	OD	Thk.	Type	Thk.	Min.	Max.	Specs. Met	Pkg. Qty.		Pkg.
Super-Corrosion-Resistant 316 Stainless Steel


		No. 4	0.125"	0.312"	0.031"	Acrylic	0.01"	50	200	—	5	000000000	00000
		No. 6	0.146"	0.312"	0.031"	Acrylic	0.01"	50	200	—	5	000000000	0000
		No. 8	0.172"	0.354"	0.031"	Acrylic	0.01"	50	200	—	5	000000000	0000
		No. 10	0.203"	0.512"	0.039"	Acrylic	0.01"	50	200	—	5	000000000	0000
		1/4"	0.281"	0.625"	0.039"	Acrylic	0.01"	50	200	—	5	000000000	0000
		5/16"	0.327"	0.750"	0.039"	Acrylic	0.039"	50	200	—	5	000000000	0000
		3/8"	0.406"	0.875"	0.039"	Acrylic	0.039"	50	200	—	5	000000000	0000
		7/16"	0.500"	1.125"	0.059"	Acrylic	0.039"	50	200	—	1	000000000	0000
		1/2"	0.531"	1.250"	0.059"	Acrylic	0.039"	50	200	—	1	000000000	0000
		5/8"	0.688"	1.500"	0.059"	Acrylic	0.039"	50	200	—	1	000000000	0000
		3/4"	0.827"	1.575"	0.079"	Acrylic	0.039"	50	200	—	1	000000000	0000
		1"	1.062"	2.000"	0.118"	Acrylic	0.039"	50	200	—	1	000000000	0000
		M3	3.2 mm	8.0 mm	0.8 mm	Acrylic	0.25 mm	50	200	DIN 125	5	000000000	0000
		M4	4.3 mm	9.0 mm	0.8 mm	Acrylic	0.25 mm	50	200	DIN 125	5	000000000	0000
		M5	5.4 mm	12.7 mm	1.0 mm	Acrylic	0.25 mm	50	200	DIN 125	5	000000000	0000
		M6	6.6 mm	16.0 mm	1.0 mm	Acrylic	0.25 mm	50	200	DIN 125	5	000000000	0000
		M8	8.4 mm	19.0 mm	1.0 mm	Acrylic	1 mm	50	200	DIN 125	5	000000000	0000
		M10	10.3 mm	22.0 mm	1.0 mm	Acrylic	1 mm	50	200	DIN 125	5	000000000	0000
		M12	13.0 mm	24.0 mm	2.0 mm	Acrylic	1 mm	50	200	DIN 125	1	000000000	0000