Metric Plastic Washers | McMaster-Carr

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About Washers

These plastic washers are good electrical insulators.

Nylon washers are stronger than polycarbonate and UHMW washers. Exposure to moisture may cause them to expand. Lubricant-filled nylon washers have a slippery surface that resists wear in high-friction applications.

Polycarbonate washers are more rigid than most plastic washers for high impact resistance. They have good moisture resistance and withstand oil, greases, and detergents.

UHMW washers have excellent moisture and abrasion resistance and good resistance to chemicals.

For technical drawings and 3-D models, click on a part number.

				Temperature Range, °F
For Screw Size	ID, mm	OD, mm	Thick., mm	Min.	Max.	Hardness	Specifications Met	Pkg. Qty.		Pkg.
Nylon Plastic
Black
M2	2.2	5.0	0.6-1.0	-40°	180°	Rockwell R120	__	100	000000000	00000
M3	3.2	8.0	0.6-1.0	-40°	180°	Rockwell R120	__	100	000000000	0000
M3.5	3.7	8.0	0.5-0.6	-40°	212°	Rockwell R120	DIN 125	10	000000000	0000
M4	4.3	9.0	0.6-1.0	-40°	180°	Rockwell R120	__	100	000000000	0000
M5	5.3	11.0	0.8-1.2	-40°	180°	Rockwell R120	__	100	000000000	0000
M6	6.4	12.0	1.3-1.7	-40°	180°	Rockwell R120	__	100	000000000	0000
M7	7.4	14.0	1.4-1.8	-40°	212°	Rockwell R120	DIN 125	5	000000000	0000
M8	8.4	18.0	1.8-2.2	-40°	180°	Rockwell R120	__	100	000000000	00000
M10	10.5	22.0	2.3-2.7	-40°	180°	Rockwell R120	__	100	000000000	00000
M12	13.4	25.1	2.4-2.7	-40°	180°	Rockwell R120	ASME B18.22M	50	000000000	00000
M16	17.0	30.0	2.7-3.3	-40°	180°	Rockwell R120	__	25	000000000	00000
M20	21.0	37.0	2.7-3.3	-40°	180°	Rockwell R120	__	10	000000000	0000
Off-White
M1.6	1.7	3.5	0.3-0.5	-40°	220°	Rockwell R120	DIN 433	25	000000000	0000
M1.6	2.1	4.0	0.5-0.7	-40°	220°	Rockwell R120	DIN 125	25	000000000	0000
M2	2.2	5.0	0.6-1.0	-40°	180°	Rockwell R120	__	100	000000000	0000
M2	2.2	7.0	0.6-1.0	-40°	220°	Rockwell R120	DIN 9021	25	000000000	0000
M2.5	2.7	5.6	0.6-1.0	Not Rated	220°	Rockwell R105	__	100	000000000	0000
M2.5	2.7	8.0	0.7-0.9	-40°	220°	Rockwell R120	DIN 9021	25	000000000	00000
M2.5	6.9	6.0	0.6-0.9	-40°	220°	Rockwell R120	DIN 125	25	000000000	0000
M3	3.2	6.0	0.5-0.7	-40°	220°	Rockwell R120	DIN 433	25	000000000	0000
M3	3.2	8.0	0.6-1.0	-40°	180°	Rockwell R120	__	100	000000000	0000
M3	3.2	9.0	0.6-0.9	-40°	220°	Rockwell R120	DIN 9021	25	000000000	00000
M3	3.3	8.8	0.7-0.9	Not Rated	220°	Rockwell R105	DIN 34816	50	000000000	0000
M3.5	3.7	7.0	0.4-0.6	-40°	220°	Rockwell R120	DIN 433	25	000000000	00000
M3.5	3.7	8.0	0.6-1.0	Not Rated	220°	Rockwell R105	__	100	000000000	0000
M4	4.3	9.0	0.6-1.0	-40°	180°	Rockwell R120	__	100	000000000	0000
M4	4.3	12.0	0.9-1.1	-40°	220°	Rockwell R120	DIN 9021	25	000000000	00000
M4	4.4	8.8	0.7-0.9	Not Rated	220°	Rockwell R105	DIN 34815	50	000000000	0000
M4	4.4	11.8	0.9-1.1	Not Rated	220°	Rockwell R105	DIN 34816	50	000000000	0000
M4	4.9	12.0	1.4-1.6	-40°	220°	Rockwell R120	DIN 7349	25	000000000	00000
M5	5.3	9.0	0.8-1.2	-40°	220°	Rockwell R120	DIN 433	25	000000000	00000
M5	5.3	11.0	0.8-1.2	-40°	180°	Rockwell R120	__	100	000000000	0000
M5	5.3	15.0	1.0-1.4	-40°	220°	Rockwell R120	DIN 9021	25	000000000	00000
M5	5.4	9.8	0.9-1.1	Not Rated	220°	Rockwell R105	DIN 34815	50	000000000	0000
M5	5.4	14.8	1.0-1.4	Not Rated	220°	Rockwell R105	DIN 34816	25	000000000	0000
M5	5.6	15.0	1.8-2.2	-40°	220°	Rockwell R120	DIN 7349	25	000000000	00000
M6	6.4	12.0	1.3-1.7	-40°	180°	Rockwell R120	__	100	000000000	0000
M6	6.5	11.8	1.4-1.8	Not Rated	220°	Rockwell R105	DIN 34815	25	000000000	0000
M6	6.5	17.8	1.4-1.8	Not Rated	220°	Rockwell R105	DIN 34816	25	000000000	0000
M6	6.8	17.0	2.7-3.3	-40°	220°	Rockwell R120	DIN 7349	25	000000000	00000
M7	7.4	14.0	1.4-1.8	-40°	212°	Rockwell R120	DIN 125	5	000000000	0000
M8	8.4	15.0	1.5-1.7	-40°	220°	Rockwell R120	DIN 433	25	000000000	00000
M8	8.4	18.0	1.8-2.2	-40°	180°	Rockwell R120	__	100	000000000	00000
M8	8.5	15.8	1.4-1.8	Not Rated	220°	Rockwell R105	DIN 34815	25	000000000	0000
M8	8.5	23.7	1.8-2.2	Not Rated	220°	Rockwell R105	DIN 34816	10	000000000	0000
M8.5	8.5	25.0	1.8-2.2	Not Rated	220°	Rockwell R105	__	10	000000000	0000
M10	10.5	18.0	1.4-1.8	-40°	220°	Rockwell R120	DIN 433	25	000000000	00000
M10	10.5	22.0	2.3-2.7	-40°	180°	Rockwell R120	__	100	000000000	00000
M10	10.5	30.0	2.3-2.7	-40°	220°	Rockwell R120	DIN 9021	10	000000000	00000
M10	10.6	19.7	1.8-2.2	Not Rated	220°	Rockwell R105	DIN 34815	10	000000000	0000
M10	10.6	29.7	2.3-2.7	Not Rated	220°	Rockwell R105	DIN 34816	10	000000000	0000
M12	13.0	20.0	1.8-2.2	-40°	220°	Rockwell R120	DIN 433	10	000000000	0000
M12	13.0	37.0	2.7-3.3	-40°	220°	Rockwell R120	DIN 9021	10	000000000	00000
M12	13.1	23.7	2.3-2.7	Not Rated	220°	Rockwell R105	DIN 34815	10	000000000	0000
M12	13.1	33.6	2.9-3.2	Not Rated	220°	Rockwell R105	__	10	000000000	0000
M12	13.1	36.7	2.7-3.3	Not Rated	220°	Rockwell R105	DIN 34816	10	000000000	0000
M12	13.4	25.1	2.4-2.7	-40°	180°	Rockwell R120	ASME B18.22M	50	000000000	00000
M16	17.0	30.0	2.7-3.3	-40°	180°	Rockwell R120	__	25	000000000	00000
M16	17.0	40.0	5.4-6.6	-40°	220°	Rockwell R120	DIN 7349	5	000000000	0000
M16	17.1	49.7	2.7-3.3	Not Rated	220°	Rockwell R105	DIN 34816	5	000000000	0000
M20	21.0	37.0	2.7-3.3	-40°	180°	Rockwell R120	__	10	000000000	0000
M24	25.3	44.0	3.7-4.3	-40°	220°	Rockwell R120	DIN 125	10	000000000	00000
Lubricant-Filled Nylon Plastic
Gray
M2	2.2	5.0	0.2-0.4	Not Rated	220°	Rockwell M75	DIN 125	5	000000000	0000
M3	3.2	7.0	0.4-0.6	Not Rated	220°	Rockwell M75	DIN 125	5	000000000	0000
M4	4.3	9.0	0.7-0.9	Not Rated	220°	Rockwell M75	DIN 125	5	000000000	0000
M5	5.5	10.0	0.9-1.1	Not Rated	220°	Rockwell M75	DIN 125	5	000000000	0000
M6	6.4	12.0	1.4-1.8	Not Rated	220°	Rockwell M75	DIN 125	5	000000000	0000
M7	7.4	14.0	1.4-1.8	Not Rated	220°	Rockwell M75	DIN 125	5	000000000	0000
M8	8.4	16.0	1.4-1.8	Not Rated	220°	Rockwell M75	DIN 125	5	000000000	0000
M10	10.5	20.0	1.8-2.2	Not Rated	220°	Rockwell M75	DIN 125	5	000000000	0000
M12	13.0	24.0	2.3-2.7	Not Rated	220°	Rockwell M75	DIN 125	5	000000000	0000
M14	15.0	28.0	2.3-2.7	Not Rated	220°	Rockwell M75	DIN 125	5	000000000	0000
M16	17.0	30.0	2.7-3.3	Not Rated	220°	Rockwell M75	DIN 125	5	000000000	0000
M18	19.0	34.0	2.7-3.3	Not Rated	220°	Rockwell M75	DIN 125	5	000000000	0000
M20	21.0	37.0	2.7-3.3	Not Rated	220°	Rockwell M75	DIN 125	5	000000000	0000
Polycarbonate Plastic
Clear
M2	2.1	4.0	0.4-0.6	Not Rated	212°	Rockwell R120	__	50	000000000	00000
M2	2.2	5.0	0.2-0.4	-40°	220°	Rockwell R120	DIN 125	10	000000000	00000
M2.5	2.9	6.0	0.5-0.6	-40°	220°	Rockwell R120	DIN 125	25	000000000	0000
M2.5	5.0	5.0	0.5-0.6	-40°	220°	Rockwell R120	DIN 433	25	000000000	0000
M2.6	2.7	6.0	0.4-0.6	Not Rated	212°	Rockwell R120	__	50	000000000	00000
M3	3.2	7.0	0.4-0.6	-40°	220°	Rockwell R120	DIN 125	25	000000000	0000