98035A107 | Black-Oxide Steel Washer

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5,182 Products

Undersized Washers

These washers distribute pressure evenly under fasteners with narrow heads, such as cheese and socket head screws. They have smaller diameters than general purpose washers of the same screw size.

Stainless Steel About Stainless Steel

18-8 Stainless Steel—The choice for wet and outdoor environments, these washers resist rust. However, they won't hold up to the harsh chemicals that 316 stainless steel can.

Black-Oxide 18-8 Stainless Steel—Typically chosen for their appearance, these washers have a dark, matte coating to create a finished look. They resist rust in wet and outdoor environments, but won't hold up to harsh chemicals as well as 316 stainless steel.

Highly 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.

High-Strength 17-4 PH Stainless Steel—Similar strength to 17-7 stainless steel washers and comparable to high-strength Grade 8 steel. These washers won’t rust in wet and outdoor environments, but they can’t handle the harsh chemicals that 316 stainless steel can.

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

	For Screw Size	ID	OD	Thk.	Specs. Met	Certificate Type	Pkg. Qty.		Pkg.
18-8 Stainless Steel



		No. 2	0.094"	0.188"	0.014" to 0.033"	—	Material Certificate	25	98370A003	00000


		1/4"	0.265"	0.500"	0.043" to 0.057"	—	—	50	90313A203	00000
		3/4"	0.812"	1.500"	0.060" to 0.090"	—	—	10	90313A412	00000
		M1.6	1.7 mm	3.5 mm	0.3 mm to 0.4 mm	DIN 433	—	100	98689A221	0000
		M2	2.2 mm	4.5 mm	0.2 mm to 0.4 mm	DIN 433, ISO 7092	—	100	98689A110	0000
		M2.5	2.7 mm	5.0 mm	0.4 mm to 0.6 mm	DIN 433, ISO 7092	—	100	98689A111	0000
		M3	3.2 mm	6.0 mm	0.4 mm to 0.6 mm	DIN 433, ISO 7092	—	100	98689A112	0000
		M3.5	3.7 mm	7.0 mm	0.5 mm to 0.6 mm	DIN 433	—	100	98689A222	0000
		M4	4.3 mm	8.0 mm	0.4 mm to 0.6 mm	DIN 433, ISO 7092	—	100	98689A113	0000
		M5	5.3 mm	9.0 mm	0.9 mm to 1.1 mm	DIN 433, ISO 7092	—	100	98689A114	0000
		M6	6.4 mm	11.0 mm	1.4 mm to 1.8 mm	DIN 433, ISO 7092	—	100	98689A115	0000


		M8	8.4 mm	15.0 mm	1.4 mm to 1.8 mm	DIN 433, ISO 7092	—	100	98689A116	0000
		M10	10.5 mm	18.0 mm	1.4 mm to 1.8 mm	DIN 433, ISO 7092	—	100	98689A117	00000
		M12	13.0 mm	20.0 mm	1.8 mm to 2.2 mm	DIN 433, ISO 7092	—	100	98689A118	00000
		M12	13.0 mm	22.0 mm	2.5 mm to 3.4 mm	—	Material Certificate	1	93849A107	0000
		M14	15.0 mm	24.0 mm	2.3 mm to 2.7 mm	DIN 433, ISO 7092	—	25	98689A119	0000
		M14	15.0 mm	25.0 mm	2.5 mm to 3.4 mm	—	—	1	93849A108	0000
		M16	17.0 mm	28.0 mm	2.3 mm to 2.7 mm	DIN 433, ISO 7092	—	25	98689A120	00000
		M16	17.0 mm	28.0 mm	3.0 mm to 3.9 mm	—	—	1	93849A109	0000
		M18	19.0 mm	30.0 mm	2.3 mm to 2.7 mm	DIN 433	—	1	98689A223	0000
		M20	21.0 mm	34.0 mm	2.7 mm to 3.3 mm	DIN 433, ISO 7092	—	10	98689A121	0000


		M20	21.0 mm	35.0 mm	3.0 mm to 3.9 mm	—	—	1	93849A110	0000
		M24	25.0 mm	39.0 mm	3.7 mm to 4.3 mm	DIN 433	—	1	98689A211	0000
		M24	25.0 mm	40.0 mm	3.5 mm to 4.4 mm	—	—	1	93849A111	0000
		M30	31.0 mm	44.0 mm	3.5 mm to 4.4 mm	—	—	1	93849A112	0000
		M36	37.0 mm	50.0 mm	4.5 mm to 5.4 mm	—	Material Certificate	1	93849A113	00000


		Black-Oxide 18-8 Stainless Steel



				5/8"	0.656"	1.375"	0.060" to 0.090"	—	—	10	90377A186	00000


				M3	3.2 mm	6.0 mm	0.5 mm to 0.6 mm	DIN 433	—	100	98269A121	0000
				M4	4.3 mm	8.0 mm	0.5 mm to 0.6 mm	DIN 433	—	100	98269A123	0000
				M5	5.3 mm	9.0 mm	0.9 mm to 1.1 mm	DIN 433	—	100	98269A124	0000
				M6	6.4 mm	11.0 mm	1.4 mm to 1.8 mm	DIN 433	—	100	98269A125	00000
				M8	8.4 mm	15.0 mm	1.4 mm to 1.8 mm	DIN 433	—	50	98269A126	0000


				Highly Corrosion-Resistant 316 Stainless Steel



						M2	2.2 mm	4.5 mm	0.3 mm to 0.4 mm	DIN 433	—	25	98690A108	0000


						M2.5	2.7 mm	5.0 mm	0.5 mm to 0.6 mm	DIN 433	—	100	98690A109	0000
						M3	3.2 mm	6.0 mm	0.4 mm to 0.6 mm	DIN 433, ISO 7092	—	100	98690A110	0000
						M4	4.3 mm	8.0 mm	0.4 mm to 0.6 mm	DIN 433, ISO 7092	—	100	98690A111	0000
						M5	5.3 mm	9.0 mm	0.9 mm to 1.1 mm	DIN 433, ISO 7092	—	100	98690A112	0000
						M6	6.4 mm	11.0 mm	1.4 mm to 1.8 mm	DIN 433, ISO 7092	—	100	98690A113	0000
						M8	8.4 mm	15.0 mm	1.4 mm to 1.8 mm	DIN 433, ISO 7092	—	50	98690A114	0000
M10						10.5 mm	18.0 mm	1.4 mm to 1.8 mm	DIN 433, ISO 7092	—	50	98690A115	0000
M12	13.0 mm					20.0 mm	1.8 mm to 2.2 mm	DIN 433, ISO 7092	—	25	98690A116	0000
M14	15.0 mm					24.0 mm	2.3 mm to 2.7 mm	DIN 433	—	10	98690A220	0000
M16	17.0 mm					28.0 mm	2.3 mm to 2.7 mm	DIN 433, ISO 7092	—	10	98690A117	0000


M20	21.0 mm					34.0 mm	2.7 mm to 3.3 mm	DIN 433, ISO 7092	—	10	98690A118	00000
M24	25.0 mm					39.0 mm	3.7 mm to 4.3 mm	DIN 433	—	1	98690A121	0000


High-Strength 17-4 PH Stainless Steel



						5/8"	0.656"	1.375"	0.105" to 0.130"	—	—	1	98049A750	0000

Steel

Zinc-Plated Steel—A common choice for areas with occasional exposure to moisture.

Zinc-Yellow-Chromate-Plated Steel—With the same corrosion resistance as zinc-plated steel, these withstand occasional exposure to moisture.

Black-Oxide Steel—Typically chosen for their appearance, these washers have a dark, matte coating that creates a finished look. They offer minimal corrosion resistance, so they're best for dry environments.

Blue-Dyed Steel—These metric-sized washers have a distinctive blue color, so you can easily tell them apart from inch washers. The coating provides only minimal corrosion resistance, so these washers are best for dry environments.

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

Corrosion-Resistant Galvanized Steel—These washers combine the strength of steel with the rust resistance of stainless steel. They're an economical alternative to 18-8 stainless steel in wet and outdoor environments, but they won't hold up to salt water and chemicals.

Black Super-Corrosion-Resistant-Coated Steel—Combines a finished appearance with the rust resistance of 316 stainless steel. The coating has been tested to extreme standards, including 1,000 hours of salt spray resistance, to hold up in wet and outdoor environments. Also known as black luster.

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

For Fastener Strength Grade/Class—If you require screws or nuts with a specific fastener strength rating, make sure your washer matches the grade or class.

	For Screw Size	ID	OD	Thk.	For Fastener Strength Grade/Class	Specs. Met	Certificate Type	Pkg. Qty.		Pkg.
Zinc-Plated Steel



		No. 10	0.203"	0.500"	0.042" to 0.051"	—	—	—	50	91090A103	00000


		1/4"	0.266"	0.500"	0.042" to 0.051"	—	—	—	50	91090A105	0000
		1/4"	0.266"	0.562"	0.042" to 0.051"	—	—	—	50	91090A106	0000
		5/16"	0.328"	0.625"	0.042" to 0.051"	—	—	—	100	91090A110	0000
		M2	2.2 mm	4.5 mm	0.2 mm to 0.4 mm	—	DIN 433, ISO 7092	—	100	98688A110	0000
		M2.5	2.7 mm	5.0 mm	0.4 mm to 0.6 mm	—	DIN 433, ISO 7092	—	100	98688A111	0000
		M3	3.2 mm	6.0 mm	0.4 mm to 0.6 mm	—	DIN 433, ISO 7092	—	100	98688A112	0000
		M3	3.2 mm	6.0 mm	0.5 mm to 0.6 mm	Class 8.8	DIN 433	—	100	98688A174	0000
		M3	3.2 mm	6.0 mm	0.5 mm to 0.6 mm	Class 10.9	DIN 433	—	100	98688A149	0000
		M3.5	3.7 mm	7.0 mm	0.4 mm to 0.6 mm	—	DIN 433, ISO 7092	—	100	98688A113	0000
		M4	4.3 mm	8.0 mm	0.4 mm to 0.6 mm	—	DIN 433, ISO 7092	—	100	98688A114	0000


		M4	4.3 mm	8.0 mm	0.5 mm to 0.6 mm	Class 8.8	DIN 433	—	100	98688A175	0000
		M4	4.3 mm	8.0 mm	0.5 mm to 0.6 mm	Class 10.9	DIN 433	—	100	98688A151	00000
		M5	5.3 mm	9.0 mm	0.9 mm to 1.1 mm	—	DIN 433, ISO 7092	—	100	98688A115	0000
		M5	5.3 mm	9.0 mm	0.9 mm to 1.1 mm	Class 8.8	DIN 433	—	100	98688A176	0000
		M5	5.3 mm	9.0 mm	0.9 mm to 1.1 mm	Class 10.9	DIN 433	—	100	98688A152	00000
		M6	6.4 mm	11.0 mm	1.4 mm to 1.8 mm	—	DIN 433, ISO 7092	—	100	98688A116	0000
		M6	6.4 mm	11.0 mm	1.4 mm to 1.8 mm	Class 8.8	DIN 433	—	100	98688A171	00000
		M6	6.4 mm	11.0 mm	1.4 mm to 1.8 mm	Class 10.9	DIN 433	—	50	98688A153	00000
		M8	8.4 mm	15.0 mm	1.4 mm to 1.8 mm	—	DIN 433, ISO 7092	—	100	98688A117	0000
		M8	8.4 mm	15.0 mm	1.4 mm to 1.8 mm	Class 8.8	DIN 433	—	50	98688A172	00000


		M8	8.4 mm	15.0 mm	1.4 mm to 1.8 mm	Class 10.9	DIN 433	—	25	98688A154	0000
		M10	10.5 mm	18.0 mm	1.4 mm to 1.8 mm	—	DIN 433, ISO 7092	—	100	98688A118	0000
		M10	10.5 mm	18.0 mm	1.4 mm to 1.8 mm	Class 8.8	DIN 433	—	50	98688A173	00000
		M10	10.5 mm	18.0 mm	1.4 mm to 1.8 mm	Class 10.9	DIN 433	—	25	98688A155	0000
		M12	13.0 mm	20.0 mm	1.8 mm to 2.2 mm	—	DIN 433, ISO 7092	—	100	98688A119	00000
		M12	13.0 mm	20.0 mm	1.8 mm to 2.2 mm	Class 8.8	DIN 433	—	25	98688A177	00000
		M12	13.0 mm	20.0 mm	1.8 mm to 2.2 mm	Class 10.9	DIN 433	—	25	98688A156	00000
		M14	15.0 mm	24.0 mm	2.3 mm to 2.7 mm	—	DIN 433, ISO 7092	—	50	98688A120	00000
		M14	15.0 mm	24.0 mm	2.3 mm to 2.7 mm	Class 8.8	DIN 433	—	10	98688A178	0000
		M14	15.0 mm	24.0 mm	2.3 mm to 2.7 mm	Class 10.9	DIN 433	—	10	98688A157	00000


		M16	17.0 mm	28.0 mm	2.3 mm to 2.7 mm	—	DIN 433, ISO 7092	—	25	98688A121	0000
		M16	17.0 mm	28.0 mm	2.3 mm to 2.7 mm	Class 8.8	DIN 433	—	10	98688A179	00000
		M16	17.0 mm	28.0 mm	2.3 mm to 2.7 mm	Class 10.9	DIN 433	—	10	98688A158	0000
		M18	19.0 mm	30.0 mm	2.3 mm to 2.7 mm	—	DIN 433, ISO 7092	—	25	98688A122	0000
		M20	21.0 mm	34.0 mm	2.7 mm to 3.3 mm	—	DIN 433, ISO 7092	—	10	98688A123	0000
		M20	21.0 mm	34.0 mm	2.7 mm to 3.3 mm	Class 8.8	DIN 433	—	5	98688A181	00000
		M20	21.0 mm	34.0 mm	2.7 mm to 3.3 mm	Class 10.9	DIN 433	—	5	98688A159	0000
		M24	25.0 mm	39.0 mm	3.7 mm to 4.3 mm	—	DIN 433, ISO 7092	—	5	98688A124	0000
		M24	25.0 mm	39.0 mm	3.7 mm to 4.3 mm	Class 8.8	DIN 433	—	1	98688A183	0000
		M24	25.0 mm	39.0 mm	3.7 mm to 4.3 mm	Class 10.9	DIN 433	—	1	98688A162	0000


		Zinc-Yellow-Chromate-Plated Steel



				M4	4.3 mm	8.0 mm	0.5 mm to 0.6 mm	Class 10.9	DIN 433	—	100	90483A176	00000


				M5	5.3 mm	9.0 mm	0.9 mm to 1.1 mm	Class 10.9	DIN 433	—	100	90483A177	00000
				M6	6.4 mm	11.0 mm	1.4 mm to 1.8 mm	Class 10.9	DIN 433	—	50	90483A178	00000
				M8	8.4 mm	15.0 mm	1.4 mm to 1.8 mm	Class 10.9	DIN 433	—	25	90483A179	0000
M10				10.5 mm	18.0 mm	1.4 mm to 1.8 mm	Class 10.9	DIN 433	—	25	90483A191	0000
M12	13.0 mm			20.0 mm	1.8 mm to 2.2 mm	Class 10.9	DIN 433	—	25	90483A192	00000
M14	15.0 mm			24.0 mm	2.3 mm to 2.7 mm	Class 10.9	DIN 433	—	10	90483A193	00000
M16	17.0 mm			28.0 mm	2.3 mm to 2.7 mm	Class 10.9	DIN 433	—	10	90483A194	00000
M20	21.0 mm			34.0 mm	2.7 mm to 3.3 mm	Class 10.9	DIN 433	—	5	90483A195	00000


Black-Oxide Steel



				M3	3.2 mm	6.0 mm	0.5 mm to 0.6 mm	—	DIN 433	—	10	98687A302	0000


				M5	5.3 mm	9.0 mm	0.9 mm to 1.1 mm	—	DIN 433	—	50	98687A303	00000
				M8	8.4 mm	15.0 mm	1.4 mm to 1.8 mm	—	DIN 433	—	50	98687A305	00000
				M10	10.5 mm	18.0 mm	1.4 mm to 1.8 mm	—	DIN 433	—	50	98687A311	0000
				M12	13.0 mm	20.0 mm	1.8 mm to 2.2 mm	—	DIN 433	—	25	98687A312	0000
				M12	13.0 mm	22.0 mm	2.5 mm to 3.4 mm	—	—	Material Certificate	10	98035A107	0000
				Black-Oxide Steel Washer, Undersized, for M12 Screw Size, 13.0 mm ID, 22.0 mm OD Product Detail QuantityPack of 10In stock Select a compatible file type: Parasolid Compatible Products for This Washer
				M14	15.0 mm	25.0 mm	2.5 mm to 3.4 mm	—	—	Material Certificate	10	98035A108	0000
				M16	17.0 mm	28.0 mm	3.0 mm to 3.9 mm	—	—	Material Certificate	10	98035A109	0000
				M20	21.0 mm	34.0 mm	2.7 mm to 3.3 mm	—	DIN 433	—	10	98687A326	0000
				M20	21.0 mm	35.0 mm	3.0 mm to 3.9 mm	—	—	—	10	98035A110	00000
				M24	25.0 mm	40.0 mm	3.5 mm to 4.4 mm	—	—	—	5	98035A111	0000


				M30	31.0 mm	44.0 mm	3.5 mm to 4.4 mm	—	—	—	5	98035A112	00000
				M36	37.0 mm	50.0 mm	4.5 mm to 5.4 mm	—	—	—	5	98035A113	00000


				Blue-Dyed Steel



						M3	3.0 mm	6.0 mm	0.4 mm to 0.6 mm	—	DIN 433	—	20	98687A222	0000


						M4	4.0 mm	8.0 mm	0.4 mm to 0.6 mm	—	DIN 433	—	20	98687A223	0000
						M5	5.0 mm	9.0 mm	0.9 mm to 1.1 mm	—	DIN 433	—	20	98687A224	0000
						M8	8.0 mm	15.0 mm	1.4 mm to 1.8 mm	—	DIN 433	—	20	98687A225	00000


						Steel



								M5	5.3 mm	9.0 mm	0.9 mm to 1.1 mm	—	DIN 433	—	100	98687A135	0000


								M6	6.4 mm	11.0 mm	1.4 mm to 1.8 mm	—	DIN 433	—	100	98687A136	0000
								M8	8.4 mm	15.0 mm	1.4 mm to 1.8 mm	—	DIN 433	—	100	98687A137	0000
								M10	10.5 mm	18.0 mm	1.4 mm to 1.8 mm	—	DIN 433	—	100	98687A138	0000
								M12	13.0 mm	20.0 mm	2.3 mm to 2.7 mm	—	DIN 433	—	100	98687A139	00000
								M20	21.0 mm	34.0 mm	2.7 mm to 3.3 mm	—	DIN 433	—	10	98687A127	00000
								M24	25.0 mm	39.0 mm	3.7 mm to 4.3 mm	—	DIN 433	—	5	98687A129	00000


		Corrosion-Resistant Galvanized Steel



								M6	6.4 mm	11.0 mm	1.4 mm to 1.8 mm	—	DIN 433	—	10	98687A401	0000


								M8	8.4 mm	15.0 mm	1.4 mm to 1.8 mm	—	DIN 433	—	10	98687A402	0000
								M10	10.5 mm	18.0 mm	1.4 mm to 1.8 mm	—	DIN 433	—	10	98687A403	0000


								Black Super-Corrosion-Resistant-Coated Steel



M6	6.4 mm									11.0 mm	1.4 mm to 1.8 mm	—	DIN 433, ISO 7092	—	10	93413A335	00000


M8	8.4 mm									15.0 mm	1.4 mm to 1.8 mm	—	DIN 433, ISO 7092	—	10	93413A336	00000
M10	10.5 mm									18.0 mm	1.4 mm to 1.8 mm	—	DIN 433, ISO 7092	—	10	93413A337	00000
M12	13.0 mm									20.0 mm	1.8 mm to 2.2 mm	—	DIN 433, ISO 7092	—	10	93413A338	00000

Brass

Softer than most metals, brass washers won't damage other fastening components.

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

	ID, mm	OD, mm	Thk., mm	Specs. Met	Pkg. Qty.		Pkg.
Brass



	M1.6	1.7	3.5	0.2 to 0.4	DIN 433, ISO 7092	100	98691A110	00000


	M2	2.2	4.5	0.2 to 0.4	DIN 433, ISO 7092	100	98691A111	0000
	M2.5	2.7	5.0	0.4 to 0.6	DIN 433, ISO 7092	100	98691A112	0000
	M3	3.2	6.0	0.4 to 0.6	DIN 433, ISO 7092	100	98691A113	0000
	M4	4.3	8.0	0.4 to 0.6	DIN 433, ISO 7092	100	98691A114	0000
	M5	5.3	9.0	0.9 to 1.1	DIN 433, ISO 7092	100	98691A115	0000
	M6	6.4	11.0	1.4 to 1.8	DIN 433, ISO 7092	50	98691A116	0000
	M8	8.4	15.0	1.4 to 1.8	DIN 433, ISO 7092	25	98691A117	0000
	M10	10.5	18.0	1.4 to 1.8	DIN 433, ISO 7092	25	98691A118	00000
	M12	13.0	20.0	1.8 to 2.2	DIN 433, ISO 7092	10	98691A119	0000
	M14	15.0	24.0	2.3 to 2.8	DIN 433, ISO 7092	10	98691A120	00000


	M16	16.0	28.0	2.3 to 2.7	DIN 433, ISO 7092	10	98691A121	00000
	M20	21.0	34.0	2.7 to 3.3	DIN 433, ISO 7092	1	98691A122	0000

Copper

These have the best conductivity of all our metal washers. They're often used to secure electrical connections inside breaker panels and to fasten components on printed circuit boards. They're also the softest of all our metal washers, so they won't damage screws and nuts. However, copper washers aren't as corrosion resistant as brass washers, and will develop a green patina over time.