Thread-Sealing Washers | McMaster-Carr

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System of Measurement

Screw Size

ID

OD

Material

Stainless Steel

Thickness

0.018" to 0.025"

0.019" to 0.043"

0.021" to 0.041"

0.024" to 0.038"

0.026" to 0.036"

0.033" to 0.047"

0.035" to 0.045"

0.035" to 0.070"

0.036" to 0.044"

0.036" to 0.056"

0.042" to 0.052"

0.043" to 0.057"

0.045" to 0.055"

0.046" to 0.078"

0.047" to 0.077"

Environment

Food and Beverage

Color

Performance

Chemical Resistant

Corrosion Resistant

High Temperature

Low Temperature

Weather Resistant

Finish

Hardness

Maximum Temperature

Less than 200° F

200° F to 249° F

250° F to 299° F

300° F to 399° F

400° F or greater

For Use With

Maximum Pressure for Fluids

Less than 3,000 psi

3,000 psi to 3,999 psi

4,000 psi to 4,999 psi

5,000 psi to 9,999 psi

10,000 psi or greater

Length

DFARS Specialty Metals

RoHS

Compliant with Exemptions

REACH

Export Control Classification Number (ECCN)

Minimum Temperature

-200° F or less

-199° F to -50° F

-49° F to -25° F

-24° F to 0° F

Greater than 0° F

Pipe Size

Maximum Pressure for Gases

Seal Hardness

Food Industry Standard

3-A Certified 18-03

Thread Size

Pressure Rating

How can we improve?

767 Products

Sealing Washers

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Choose from rubber, PTFE, hard fiber, or metal

Bonded Sealing Washers

Bonded Sealing Washers

Two layers create a stronger seal than metal or rubber alone

High-Pressure Bonded Sealing Washers

High-Pressure Bonded Sealing Washers

Prevent leaks in pumps, hydraulic systems, and other pressurized lines

Washdown Bonded Sealing Washers

Washdown Bonded Sealing Washers

NEMA or IP rated to maintain the washdown rating of your enclosure

Sanitary Bonded Sealing Washers

Sanitary Bonded Sealing Washers

Free of nooks and crannies where dirt and bacteria could collect

Sealing Washer Assortments

Sealing Washer Assortments

A collection of common sizes to prevent leaks around nuts and screws

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Tube Fitting Rings

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Prevent leaks at tubing connection points

Fastener Assortments

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Stay prepared by keeping fasteners in common sizes and materials on hand

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)