About Nuts, Materials, and Finishes
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Mil. Spec. Rivet-Mount Nuts
Create threads in hard-to-work areas—where you can’t reach the back of a workpiece, or material is too thin to be tapped. For a strong grip, these nuts have distorted threads that increase friction with bolts. Because they mount with two rivets, they won’t spin when you’re tightening screws. However, these nuts do move inside their retainers, which lets you install bolts at a slight angle; use them to align with off-center parts. All meet military guidelines for dimensions and material.
Cadmium-plated nuts resist corrosion in industrial and saltwater environments, although will lose their corrosion resistance over 450° F. The cadmium plating also adds lubricity, making these nuts easy to install.
A286 stainless steel nuts are corrosion resistant. Silver-plated stainless steel nuts withstand temperatures up to 800° F. The silver plating also adds lubricity and prevents seizing caused by friction between nuts and bolts.
Lubricated nuts thread onto bolts smoothly.
For technical drawings and 3-D models, click on a part number.
Base | Barrel | Mounting | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Thread Size | Lg. | Wd. | Thick. | Dia. | Ht. | No. of Holes | Hole Dia. | Hole Ctr.-to-Ctr. | Specifications Met | Each | |
Steel—Unlubricated | |||||||||||
| 4-40 | 21/32" | 5/16" | 3/32" | 0.125" | 1/16" | 2 | 0.098" | 13/32" | MS21075-04N | 000000000 | 00000 |
| 6-32 | 11/16" | 11/32" | 3/32" | 0.172" | 5/64" | 2 | 0.098" | 7/16" | MS21075-06N | 000000000 | 0000 |
| 8-32 | 45/64" | 23/64" | 3/32" | 0.203" | 5/32" | 2 | 0.098" | 15/32" | MS21075-08N | 000000000 | 0000 |
| 10-32 | 47/64" | 13/32" | 3/32" | 0.234" | 5/32" | 2 | 0.098" | 1/2" | MS21075-3N | 000000000 | 0000 |
| 1/4"-28 | 51/64" | 1/2" | 3/32" | 0.313" | 3/16" | 2 | 0.098" | 9/16" | MS21075-4N | 000000000 | 0000 |
Cadmium-Plated Steel—Lubricated | |||||||||||
| 4-40 | 21/32" | 5/16" | 3/32" | 0.125" | 1/16" | 2 | 0.098" | 13/32" | MS21075L04N | 000000000 | 0000 |
| 6-32 | 11/16" | 11/32" | 3/32" | 0.172" | 5/64" | 2 | 0.098" | 7/16" | MS21075L06N | 000000000 | 0000 |
| 8-32 | 45/64" | 23/64" | 3/32" | 0.203" | 5/32" | 2 | 0.098" | 15/32" | MS21075L08N | 000000000 | 0000 |
| 10-32 | 47/64" | 13/32" | 3/32" | 0.234" | 5/32" | 2 | 0.098" | 1/2" | MS21075L3N | 000000000 | 0000 |
| 1/4"-28 | 51/64" | 1/2" | 3/32" | 0.313" | 3/16" | 2 | 0.098" | 9/16" | MS21075L4N | 000000000 | 0000 |
Carbon Steel—Unlubricated | |||||||||||
| 6-32 | 61/64" | 13/32" | 1/32" | 0.172" | 11/64" | 2 | 0.098" | 11/16" | MS21059-06 | 000000000 | 0000 |
| 8-32 | 61/64" | 13/32" | 1/32" | 0.203" | 7/32" | 2 | 0.098" | 11/16" | MS21059-08 | 000000000 | 0000 |
| 10-32 | 61/64" | 13/32" | 1/32" | 0.234" | 7/32" | 2 | 0.098" | 11/16" | MS21059-3 | 000000000 | 0000 |
| 1/4"-28 | 1 19/64" | 33/64" | 1/32" | 0.313" | 1/4" | 2 | 0.098" | 1" | MS21059-4 | 000000000 | 0000 |
| 5/16"-24 | 1 19/64" | 39/64" | 3/64" | 0.375" | 9/32" | 2 | 0.13" | 1" | MS21059-5 | 000000000 | 00000 |
Cadmium-Plated Carbon Steel—Lubricated | |||||||||||
| 4-40 | 61/64" | 13/32" | 1/32" | 0.141" | 9/64" | 2 | 0.098" | 11/16" | MS21059L04 | 000000000 | 0000 |
| 6-32 | 61/64" | 13/32" | 1/32" | 0.172" | 11/64" | 2 | 0.098" | 11/16" | MS21059L06 | 000000000 | 0000 |
| 8-32 | 61/64" | 13/32" | 1/32" | 0.203" | 7/32" | 2 | 0.098" | 11/16" | MS21059L08 | 000000000 | 0000 |
| 10-32 | 61/64" | 13/32" | 1/32" | 0.234" | 7/32" | 2 | 0.098" | 11/16" | MS21059L3 | 000000000 | 0000 |
| 1/4"-28 | 1 19/64" | 33/64" | 1/32" | 0.313" | 1/4" | 2 | 0.098" | 1" | MS21059L4 | 000000000 | 0000 |
| 5/16"-24 | 1 19/64" | 39/64" | 3/64" | 0.375" | 9/32" | 2 | 0.13" | 1" | MS21059L5 | 000000000 | 00000 |
| 3/8"-24 | 1 19/64" | 43/64" | 1/16" | 0.453" | 19/64" | 2 | 0.13" | 1" | MS21059L6 | 000000000 | 00000 |
A286 Stainless Steel—Lubricated | |||||||||||
| 4-40 | 21/32" | 5/16" | 3/32" | 0.125" | 1/16" | 2 | 0.098" | 13/32" | MS21076L04N | 000000000 | 00000 |
| 6-32 | 11/16" | 11/32" | 3/32" | 0.172" | 5/64" | 2 | 0.098" | 7/16" | MS21076L06N | 000000000 | 00000 |
| 6-32 | 61/64" | 13/32" | 1/32" | 0.172" | 11/64" | 2 | 0.098" | 11/16" | MS21060L06 | 000000000 | 00000 |
| 8-32 | 45/64" | 23/64" | 3/32" | 0.203" | 5/32" | 2 | 0.098" | 15/32" | MS21076L08N | 000000000 | 0000 |
| 8-32 | 61/64" | 13/32" | 1/32" | 0.203" | 7/32" | 2 | 0.098" | 11/16" | MS21060L08 | 000000000 | 0000 |
| 10-32 | 47/64" | 13/32" | 3/32" | 0.234" | 5/32" | 2 | 0.098" | 1/2" | MS21076L3N | 000000000 | 0000 |
| 10-32 | 61/64" | 13/32" | 1/32" | 0.234" | 7/32" | 2 | 0.098" | 11/16" | MS21060L3 | 000000000 | 0000 |
| 1/4"-28 | 51/64" | 1/2" | 3/32" | 0.313" | 3/16" | 2 | 0.098" | 9/16" | MS21076L4N | 000000000 | 0000 |
| 1/4"-28 | 1 19/64" | 33/64" | 1/32" | 0.313" | 1/4" | 2 | 0.098" | 1" | MS21060L4 | 000000000 | 00000 |
| 5/16"-24 | 1 1/64" | 37/64" | 7/64" | 0.391" | 7/32" | 2 | 0.13" | 23/32" | MS21076L5N | 000000000 | 00000 |
| 5/16"-24 | 1 19/64" | 39/64" | 3/64" | 0.375" | 9/32" | 2 | 0.13" | 1" | MS21060L5 | 000000000 | 00000 |
| 3/8"-24 | 1 19/64" | 43/64" | 1/16" | 0.453" | 19/64" | 2 | 0.13" | 1" | MS21060L6 | 000000000 | 00000 |
Silver-Plated A286 Stainless Steel—Unlubricated | |||||||||||
| 4-40 | 21/32" | 5/16" | 3/32" | 0.125" | 1/16" | 2 | 0.098" | 13/32" | MS21076-04N | 000000000 | 00000 |
| 6-32 | 61/64" | 13/32" | 1/32" | 0.172" | 11/64" | 2 | 0.098" | 11/16" | MS21060-06 | 000000000 | 0000 |
| 8-32 | 45/64" | 23/64" | 3/32" | 0.203" | 5/32" | 2 | 0.098" | 15/32" | MS21076-08N | 000000000 | 00000 |
| 10-32 | 47/64" | 13/32" | 3/32" | 0.234" | 5/32" | 2 | 0.098" | 1/2" | MS21076-3N | 000000000 | 0000 |
| 10-32 | 61/64" | 13/32" | 1/32" | 0.234" | 7/32" | 2 | 0.098" | 11/16" | MS21060-3 | 000000000 | 0000 |
| 1/4"-28 | 51/64" | 1/2" | 3/32" | 0.313" | 3/16" | 2 | 0.098" | 9/16" | MS21076-4N | 000000000 | 00000 |
| 1/4"-28 | 1 19/64" | 33/64" | 1/32" | 0.313" | 1/4" | 2 | 0.098" | 1" | MS21060-4 | 000000000 | 00000 |
| 5/16"-24 | 1 1/64" | 37/64" | 7/64" | 0.391" | 7/32" | 2 | 0.13" | 23/32" | MS21076-5N | 000000000 | 00000 |
Aligning Weld Nuts
Threads float inside the retainer so you can install a bolt at a slight angle to align with off-center parts. Weld these nuts to metal surfaces for a strong, permanent hold. They stand up to high torque and pulling force better than rivet nuts.
For the strongest threads, choose steel nuts. Nuts with a steel retainer should be welded to uncoated steel surfaces. Zinc-plated steel nuts resist corrosion in wet environments. Nuts with an aluminum retainer should be welded to aluminum surfaces.
For the most corrosion resistance, choose stainless steel nuts. They have a stainless steel retainer, so they should be welded to stainless steel surfaces.
For technical drawings and 3-D models, click on a part number.
Base | |||||||
|---|---|---|---|---|---|---|---|
| Thread Size | Lg. | Wd. | Thick. | Ht. | Pkg. Qty. | Pkg. | |
Steel Nut with C1008/C1010 Steel Retainer | |||||||
| 6-32 | 1 1/2" | 1/2" | 3/64" | 29/64" | 1 | 000000000 | 00000 |
| 8-32 | 1 1/2" | 1/2" | 3/64" | 11/32" | 10 | 000000000 | 00000 |
| 10-24 | 1 1/2" | 1/2" | 3/64" | 11/32" | 10 | 000000000 | 00000 |
| 10-32 | 1 1/2" | 1/2" | 3/64" | 11/32" | 10 | 000000000 | 00000 |
| 1/4"-20 | 1 3/4" | 9/16" | 1/16" | 7/16" | 10 | 000000000 | 00000 |
| 1/4"-28 | 1 3/4" | 9/16" | 1/16" | 7/16" | 10 | 000000000 | 00000 |
| 5/16"-18 | 2" | 25/32" | 1/16" | 33/64" | 10 | 000000000 | 00000 |
| 5/16"-24 | 2" | 25/32" | 1/16" | 33/64" | 10 | 000000000 | 00000 |
| 3/8"-16 | 2" | 25/32" | 1/16" | 33/64" | 10 | 000000000 | 00000 |
| 3/8"-24 | 2" | 25/32" | 1/16" | 33/64" | 5 | 000000000 | 00000 |
| 7/16"-14 | 2 1/4" | 15/16" | 1/16" | 51/64" | 5 | 000000000 | 00000 |
| 1/2"-13 | 2 1/4" | 15/16" | 1/16" | 51/64" | 5 | 000000000 | 00000 |
Zinc-Plated Steel Nut with 5052 Aluminum Retainer | |||||||
| 10-32 | 1 1/2" | 1/2" | 3/64" | 11/32" | 10 | 000000000 | 00000 |
| 1/4"-20 | 1 3/4" | 9/16" | 1/16" | 7/16" | 10 | 000000000 | 00000 |
| 5/16"-18 | 2" | 25/32" | 1/16" | 33/64" | 10 | 000000000 | 00000 |
| 3/8"-16 | 2" | 25/32" | 1/16" | 33/64" | 5 | 000000000 | 00000 |
Zinc-Plated Steel Nut with C1008/C1010 Steel Retainer | |||||||
| 10-24 | 1 1/2" | 1/2" | 3/64" | 11/32" | 5 | 000000000 | 0000 |
| 1/4"-20 | 1 3/4" | 9/16" | 1/16" | 7/16" | 5 | 000000000 | 0000 |
| 5/16"-18 | 2" | 25/32" | 1/16" | 33/64" | 5 | 000000000 | 00000 |
Stainless Steel Nut with Stainless Steel Retainer | |||||||
| 1/4"-20 | 1 3/4" | 9/16" | 1/16" | 11/32" | 1 | 000000000 | 00000 |
Metric Aligning Weld Nuts
Threads float inside the retainer so you can install a bolt at a slight angle to align with off-center parts. Weld these nuts to metal surfaces for a strong permanent hold. They stand up to high torque and pulling force better than rivet nuts.
Weld steel nuts with a steel retainer to uncoated steel surfaces.
Weld zinc-plated steel nuts with an aluminum retainer to aluminum surfaces. They resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
Thread | Base | |||||||
|---|---|---|---|---|---|---|---|---|
| Size | Pitch, mm | Lg., mm | Wd., mm | Thick., mm | Ht., mm | Pkg. Qty. | Pkg. | |
Steel Nut with C1008/C1010 Steel Retainer | ||||||||
| M5 | 0.8 | 38.1 | 12.7 | 1.06 | 8.6 | 5 | 000000000 | 000000 |
| M6 | 1 | 38.1 | 12.7 | 1.06 | 8.6 | 10 | 000000000 | 00000 |
| M8 | 1.25 | 50.8 | 19.8 | 1.27 | 13.7 | 5 | 000000000 | 00000 |
| M10 | 1.5 | 50.8 | 19.8 | 1.27 | 13 | 5 | 000000000 | 00000 |
| M12 | 1.75 | 58.7 | 23.8 | 1.27 | 20.2 | 5 | 000000000 | 00000 |
Zinc-Plated Steel Nut with 5052 Aluminum Retainer | ||||||||
| M10 | 1.5 | 50.8 | 19.8 | 1.27 | 13 | 5 | 000000000 | 00000 |
Steel Snap-In Nuts
Snap these nuts into square holes in thin material. Threads float inside the retainer so you can install a bolt at a slight angle to align off-center parts. Mounting legs expand to lock the fastener in place. Install them by hand or with pliers.
Black-phosphate steel nuts are mildly corrosion resistant in dry environments.
Zinc-plated steel nuts resist corrosion in wet environments.
For technical drawings and 3-D models, click on a part number.
| Thread Size | For Panel Thick. | Square Hole Size | Wd. | Head Ht. | Pkg. Qty. | Pkg. | |
Black-Phosphate Steel | |||||||
|---|---|---|---|---|---|---|---|
| 10-24 | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 000000 |
| 1/4"-20 | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 0000 |
| 1/4"-20 | 0.064" to 0.105" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
| 1/4"-20 | 0.093" to 0.126" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 0000 |
| 5/16"-18 | 0.093" to 0.126" | 0.503" to 0.508" | 0.66" | 0.3" | 10 | 000000000 | 0000 |
Zinc-Plated Steel | |||||||
| 6-32 | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
| 8-32 | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
| 8-32 | 0.064" to 0.105" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
| 8-32 | 0.093" to 0.126" | 0.375" to 0.38" | 0.52" | 0.25" | 10 | 000000000 | 0000 |
| 10-24 | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
| 10-24 | 0.064" to 0.105" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
| 10-32 | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
| 10-32 | 0.064" to 0.105" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
| 10-32 | 0.093" to 0.126" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
| 1/4"-20 | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
| 1/4"-20 | 0.064" to 0.105" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
| 1/4"-20 | 0.093" to 0.126" | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
| 1/4"-20 | 0.125" to 0.156" | 0.375" to 0.38" | 0.53" | 0.25" | 25 | 000000000 | 00000 |
| 5/16"-18 | 0.028" to 0.056" | 0.503" to 0.508" | 0.66" | 0.3" | 10 | 000000000 | 0000 |
| 5/16"-18 | 0.057" to 0.092" | 0.503" to 0.508" | 0.66" | 0.3" | 10 | 000000000 | 0000 |
| 5/16"-18 | 0.093" to 0.126" | 0.503" to 0.508" | 0.66" | 0.3" | 10 | 000000000 | 0000 |
| 5/16"-18 | 0.127" to 0.162" | 0.503" to 0.508" | 0.66" | 0.3" | 10 | 000000000 | 00000 |
| 3/8"-16 | 0.028" to 0.056" | 0.503" to 0.508" | 0.66" | 0.3" | 10 | 000000000 | 00000 |
| 3/8"-16 | 0.093" to 0.126" | 0.503" to 0.508" | 0.66" | 0.3" | 10 | 000000000 | 0000 |
| 3/8"-16 | 0.162" to 0.21" | 0.573" to 0.578" | 0.87" | 0.41" | 1 | 000000000 | 0000 |
| 3/8"-16 | 0.24" to 0.26" | 0.588" to 0.593" | 0.87" | 0.41" | 1 | 000000000 | 0000 |
| 1/2"-13 | 0.093" to 0.126" | 0.588" to 0.593" | 0.87" | 0.41" | 5 | 000000000 | 00000 |
Metric Zinc-Plated Steel | |||||||
| M6 | 0.635mm to 1.6mm | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
| M6 | 1.626mm to 2.667mm | 0.375" to 0.38" | 0.52" | 0.25" | 25 | 000000000 | 00000 |
Stainless Steel Snap-In Nuts
These nuts have good chemical resistance and may be mildly magnetic. Snap them into square holes in thin material. Threads float inside the retainer so you can install a bolt at a slight angle to align with off-center parts. Mounting legs expand to lock the fastener in place. They can be installed by hand or with pliers.
For technical drawings and 3-D models, click on a part number.
| Thread Size | Thread Pitch | For Panel Thick. | Square Hole Size | Wd. | Head Ht. | Pkg. Qty. | Pkg. | |
18-8 Stainless Steel | ||||||||
|---|---|---|---|---|---|---|---|---|
| 10-24 | __ | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 000000 |
| 10-24 | __ | 0.064" to 0.105" | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 00000 |
| 10-24 | __ | 0.093" to 0.126" | 0.343" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 00000 |
| 10-24 | __ | 0.125" to 0.156" | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 00000 |
| 10-32 | __ | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
| 10-32 | __ | 0.064" to 0.105" | 0.375" to 0.38" | 0.49" | 0.25" | 5 | 000000000 | 0000 |
| 10-32 | __ | 0.093" to 0.126" | 0.343" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 00000 |
| 10-32 | __ | 0.125" to 0.156" | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 00000 |
| 1/4"-20 | __ | 0.025" to 0.063" | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
| 1/4"-20 | __ | 0.064" to 0.105" | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
| 1/4"-20 | __ | 0.093" to 0.126" | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
| 1/4"-20 | __ | 0.125" to 0.156" | 0.343" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
Metric 18-8 Stainless Steel | ||||||||
| M5 | 0.8mm | 0.635mm to 1.6mm | 0.343" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
| M5 | 0.8mm | 1.626mm to 2.667mm | 0.343" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
| M5 | 0.8mm | 2.362mm to 3.2mm | 0.343" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 00000 |
| M5 | 0.8mm | 3.175mm to 3.962mm | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
| M6 | 1mm | 0.635mm to 1.6mm | 0.343" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
| M6 | 1mm | 1.626mm to 2.667mm | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
| M6 | 1mm | 2.362mm to 3.2mm | 0.343" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
| M6 | 1mm | 3.175mm to 3.962mm | 0.375" to 0.38" | 0.52" | 0.25" | 5 | 000000000 | 0000 |
Clip-On Nuts for Flanged Edges
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Slide these nuts on the edge of a panel and position them by hand. Also known as G-style clip-on nuts, they have threads that float inside the retainer so you can install a bolt at a slight angle to align off-center parts.
Zinc-plated steel clip-on nuts are corrosion resistant in wet environments.
Black-phosphate steel clip-on nuts are mildly corrosion resistant in dry environments.
For technical drawings and 3-D models, click on a part number.
Metric Clip-On Nuts for Flanged Edges
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Slide these nuts on the edge of a panel and position them by hand. Also known as G-style clip-on nuts, they have threads that float inside the retainer so you can install a bolt at a slight angle to align off-center parts. A zinc plating provides corrosion resistance in wet environments.
For technical drawings and 3-D models, click on a part number.
Thread | ||||||
|---|---|---|---|---|---|---|
| Size | Pitch, mm | For Panel Thick., mm | Distance from Ctr. of Hole to Edge (A), mm | Pkg. Qty. | Pkg. | |
Zinc-Plated Steel | ||||||
| M5 | 0.8 | 1.75 to 2 | 7.23 | 10 | 000000000 | 00000 |