Serrated Nuts | McMaster-Carr

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224 Products

Serrated Flange Nuts

Serrations bite into material for mild vibration resistance while the flange eliminates the need for a separate washer. These nuts are ideal for securing screws in oversized or irregularly shaped holes since the flange covers a larger area than standard nuts. You can use them again and again without sacrificing strength. However, the serrations may mar the surface of your material. Also known as collar nuts.

Medium-Strength Steel

Image of Product. Bottom orientation. Flange Nuts. Serrated Flange Nuts.

Rated Grade 5, Grade F, or Class 8, these nuts are your go-to for fastening most machinery and equipment. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.

Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.

Zinc-Yellow-Chromate-Plated Steel—With a more durable finish than clear zinc plating, these nuts are suitable for most wet and outdoor environments. However, they won't hold up to the harsh chemicals that stainless steel can.

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

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

				Flange
	Thread Size	Wd.	Ht.	Dia.	Thk.	Fastener Strength Grade/Class	Specs. Met	Pkg. Qty.		Pkg.
Zinc-Plated Steel



		1/4"-20	7/16"	15/64"	19/32"	0.04"	SAE Grade 5	—	100	000000000	00000


		1/4"-28	7/16"	15/64"	19/32"	0.04"	SAE Grade 5	—	100	000000000	0000
		5/16"-18	1/2"	9/32"	11/16"	0.04"	SAE Grade 5	—	100	000000000	00000
		5/16"-24	1/2"	9/32"	11/16"	0.04"	SAE Grade 5	—	100	000000000	00000
		3/8"-16	9/16"	11/32"	3/4"	0.04"	SAE Grade 5	—	100	000000000	00000
		3/8"-24	9/16"	11/32"	3/4"	0.04"	SAE Grade 5	—	100	000000000	00000
		7/16"-14	11/16"	3/8"	59/64"	0.04"	SAE Grade 5	—	100	000000000	00000
		7/16"-20	11/16"	3/8"	59/64"	0.04"	SAE Grade 5	—	100	000000000	00000
		1/2"-13	3/4"	29/64"	1 1/32"	0.05"	SAE Grade 5	—	50	000000000	00000
		1/2"-20	3/4"	7/16"	1"	0.05"	SAE Grade 5	—	50	000000000	00000
		5/8"-11	59/64"	35/64"	1 1/4"	0.05"	SAE Grade 5	—	25	000000000	00000


		5/8"-18	59/64"	35/64"	1 1/4"	0.05"	SAE Grade 5	—	25	000000000	00000
		3/4"-10	1 3/32"	41/64"	1 15/32"	0.06"	SAE Grade 5	—	10	000000000	00000
		3/4"-16	1 3/32"	41/64"	1 15/32"	0.06"	SAE Grade 5	—	10	000000000	00000
		M3 × 0.5 mm	5.5 mm	4 mm	8 mm	0.7 mm	ISO Class 8	DIN 6923, ISO 4161	100	000000000	0000
		M4 × 0.7 mm	7 mm	4.6 mm	10 mm	0.4 mm	ISO Class 8	DIN 6923	100	000000000	0000
		M5 × 0.8 mm	8 mm	5 mm	11.8 mm	1 mm	ISO Class 8	DIN 6923	100	000000000	0000
		M6 × 1 mm	10 mm	6 mm	14.2 mm	1.1 mm	ISO Class 8	DIN 6923, ISO 4161	100	000000000	0000
		M8 × 1 mm	13 mm	8 mm	17.9 mm	1.2 mm	ISO Class 8	DIN 6923	100	000000000	00000
		M8 × 1.25 mm	13 mm	8 mm	17.9 mm	1.2 mm	ISO Class 8	DIN 6923, ISO 4161	100	000000000	00000
		M10 × 1.25 mm	15 mm	10 mm	21.8 mm	1.5 mm	ISO Class 8	DIN 6923	50	000000000	00000


		M10 × 1.5 mm	15 mm	10 mm	21.8 mm	1.5 mm	ISO Class 8	DIN 6923	50	000000000	00000
		M12 × 1.75 mm	18 mm	12 mm	26 mm	1.8 mm	ISO Class 8	DIN 6923	25	000000000	00000
		M14 × 2 mm	21 mm	14 mm	29.9 mm	2.1 mm	ISO Class 8	DIN 6923	25	000000000	00000
		M16 × 2 mm	24 mm	16 mm	34.5 mm	2.4 mm	ISO Class 8	DIN 6923, ISO 4161	10	000000000	00000
		M20 × 2.5 mm	30 mm	20 mm	42.8 mm	3 mm	ISO Class 8	DIN 6923, ISO 4161	1	000000000	0000


		Zinc-Yellow-Chromate-Plated Steel



				M4 × 0.7 mm	7 mm	4.2 mm	10.5 mm	0.9 mm	ISO Class 8	DIN 6923, ISO 4161	50	000000000	00000


				M5 × 0.8 mm	8 mm	5 mm	11.8 mm	1 mm	ISO Class 8	DIN 6923, ISO 4161	50	000000000	00000
				M6 × 1 mm	10 mm	6 mm	14.2 mm	1.1 mm	ISO Class 8	DIN 6923, ISO 4161	100	000000000	00000
				M8 × 1.25 mm	13 mm	8 mm	17.9 mm	1.2 mm	ISO Class 8	DIN 6923, ISO 4161	50	000000000	00000
				M10 × 1.25 mm	15 mm	10 mm	21.8 mm	1.5 mm	ISO Class 8	DIN 6923	50	000000000	00000
				M10 × 1.5 mm	15 mm	10 mm	21.8 mm	1.5 mm	ISO Class 8	DIN 6923, ISO 4161	25	000000000	00000
				M12 × 1.75 mm	18 mm	12 mm	26 mm	1.8 mm	ISO Class 8	DIN 6923, ISO 4161	10	000000000	00000
				M14 × 2 mm	21 mm	14 mm	29.9 mm	2.1 mm	ISO Class 8	DIN 6923	25	000000000	00000
				M16 × 2 mm	24 mm	16 mm	34.5 mm	2.4 mm	ISO Class 8	DIN 6923, ISO 4161	1	000000000	0000


				Black-Oxide Steel



						1/4"-20	7/16"	15/64"	37/64"	0.04"	SAE Grade 5	—	100	000000000	0000


						5/16"-18	1/2"	9/32"	43/64"	0.04"	SAE Grade 5	—	100	000000000	00000
						3/8"-16	9/16"	11/32"	47/64"	0.04"	SAE Grade 5	—	100	000000000	00000
						7/16"-14	11/16"	3/8"	59/64"	0.04"	SAE Grade 5	—	100	000000000	00000
7/16"-20						11/16"	3/8"	59/64"	0.04"	SAE Grade 5	—	100	000000000	00000
1/2"-13	3/4"					7/16"	1"	0.05"	SAE Grade 5	—	50	000000000	00000
1/2"-20	3/4"					7/16"	1"	0.05"	SAE Grade 5	—	50	000000000	00000
5/8"-11	59/64"					35/64"	1 1/4"	0.05"	SAE Grade 5	—	25	000000000	00000
5/8"-18	59/64"					35/64"	1 1/4"	0.05"	SAE Grade 5	—	25	000000000	00000
3/4"-10	1 3/32"					41/64"	1 15/32"	0.06"	SAE Grade 5	—	10	000000000	00000
3/4"-16	1 3/32"					41/64"	1 15/32"	0.06"	SAE Grade 5	—	10	000000000	00000


M4 × 0.7 mm	7 mm					4.6 mm	10 mm	0.4 mm	ISO Class 8	DIN 6923	100	000000000	0000
M5 × 0.8 mm	8 mm					5 mm	11.8 mm	1 mm	ISO Class 8	DIN 6923	100	000000000	0000
M6 × 1 mm	10 mm					6 mm	14.2 mm	1.1 mm	ISO Class 8	DIN 6923	100	000000000	0000
M8 × 1 mm	13 mm					8 mm	17.9 mm	1.2 mm	ISO Class 8	DIN 6923	100	000000000	00000
M8 × 1.25 mm	13 mm					8 mm	17.9 mm	1.2 mm	ISO Class 8	DIN 6923	100	000000000	00000
M10 × 1.25 mm	15 mm					10 mm	21.8 mm	1.5 mm	ISO Class 8	DIN 6923	50	000000000	00000
M10 × 1.5 mm	15 mm					10 mm	21.8 mm	1.5 mm	ISO Class 8	DIN 6923	50	000000000	00000
M12 × 1.75 mm	18 mm					12 mm	26 mm	1.8 mm	ISO Class 8	DIN 6923	25	000000000	00000


Steel



						M4 × 0.7 mm	7 mm	4.6 mm	10 mm	0.4 mm	ISO Class 8	DIN 6923	100	000000000	0000


						M5 × 0.8 mm	8 mm	4.3 mm	11.2 mm	1.75 mm	ISO Class 8	—	25	000000000	00000
						M6 × 1 mm	10 mm	5.5 mm	14.25 mm	2.2 mm	ISO Class 8	—	25	000000000	00000
						M8 × 1 mm	13 mm	8 mm	17.9 mm	1.2 mm	ISO Class 8	DIN 6923	100	000000000	00000
						M8 × 1.25 mm	13 mm	7 mm	18.25 mm	2.6 mm	ISO Class 8	—	25	000000000	00000
						M10 × 1.25 mm	15 mm	10 mm	21.8 mm	1.5 mm	ISO Class 8	DIN 6923	50	000000000	0000
						M10 × 1.5 mm	15 mm	7.9 mm	21 mm	2.8 mm	ISO Class 8	—	10	000000000	0000
						M12 × 1.75 mm	18 mm	12 mm	26 mm	1.8 mm	ISO Class 8	DIN 6923, ISO 4161	25	000000000	00000
						M14 × 2 mm	21 mm	14 mm	29.9 mm	2.1 mm	ISO Class 8	DIN 6923	25	000000000	00000
						M16 × 2 mm	24 mm	16 mm	34.5 mm	2.4 mm	ISO Class 8	DIN 6923	10	000000000	0000

High-Strength Steel

Rated Grade 8, Grade G, or Class 10, these are about 25% stronger than medium-strength steel nuts. They are commonly used to fasten components in valves, pumps, and motors. To avoid stripped threads during installation, make sure your screw has a comparable strength rating.

Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.

Phosphate-Coated Steel—Paint adheres evenly to the surface of these nuts, so you can add your own decorative finish. They are more durable than zinc-plated steel nuts to withstand wet and outdoor environments. However, they won't hold up to the harsh chemicals that stainless steel can.

Black Phosphate-Coated Steel—The dark coating creates both a finished appearance and a barrier against rust that's more durable than clear zinc plating.

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

				Flange
	Thread Size	Wd.	Ht.	Dia.	Thk.	Fastener Strength Grade/Class	Specs. Met	Pkg. Qty.		Pkg.
Zinc-Plated Steel



		1/4"-20	7/16"	15/64"	19/32"	0.04"	SAE Grade 8	—	100	000000000	000000


		5/16"-18	1/2"	9/32"	11/16"	0.04"	SAE Grade 8	—	100	000000000	00000
		3/8"-16	9/16"	11/32"	3/4"	0.04"	SAE Grade 8	—	50	000000000	00000
		1/2"-13	3/4"	29/64"	1 1/32"	0.05"	SAE Grade 8	—	25	000000000	00000
		5/8"-11	15/16"	9/16"	1 9/32"	0.05"	SAE Grade 8	—	25	000000000	00000
		3/4"-10	1 1/8"	21/32"	1 1/2"	0.06"	SAE Grade 8	—	10	000000000	00000
		M5 × 0.8 mm	8 mm	5 mm	11.8 mm	1 mm	ISO Class 10	DIN 6923	25	000000000	0000
		M6 × 1 mm	10 mm	6 mm	14.2 mm	1.1 mm	ISO Class 10	DIN 6923	50	000000000	00000
		M8 × 1.25 mm	13 mm	8 mm	17.9 mm	1.2 mm	ISO Class 10	DIN 6923	50	000000000	00000
		M10 × 1.5 mm	15 mm	10 mm	21.8 mm	1.5 mm	ISO Class 10	DIN 6923	25	000000000	00000
		M12 × 1.75 mm	18 mm	12 mm	26 mm	1.8 mm	ISO Class 10	DIN 6923	10	000000000	0000


		M16 × 2 mm	24 mm	16 mm	34.5 mm	2.4 mm	ISO Class 10	DIN 6923	5	000000000	00000
		M20 × 2.5 mm	30 mm	20 mm	42.8 mm	3 mm	ISO Class 10	DIN 6923	1	000000000	0000


		Zinc-Yellow-Chromate-Plated Steel



				9/16"-12	7/8"	1/2"	1 3/16"	0.05"	SAE Grade 8	—	5	000000000	00000


				Black-Oxide Steel



						1/2"-13	3/4"	29/64"	1 1/32"	0.05"	SAE Grade 8	—	10	000000000	00000


						5/8"-11	15/16"	9/16"	1 9/32"	0.05"	SAE Grade 8	—	5	000000000	00000
						3/4"-10	1 1/8"	43/64"	1 1/2"	0.06"	SAE Grade 8	—	1	000000000	0000


						Phosphate-Coated Steel



								3/4"-10	1 1/8"	43/64"	1 1/2"	0.06"	SAE Grade 8	—	10	000000000	00000


								Black Phosphate-Coated Steel



										1/4"-20	7/16"	15/64"	19/32"	0.04"	SAE Grade 8	—	50	000000000	0000


										5/16"-18	1/2"	9/32"	11/16"	0.04"	SAE Grade 8	—	25	000000000	0000
										3/8"-16	9/16"	11/32"	3/4"	0.04"	SAE Grade 8	—	25	000000000	0000


										Steel



												1/4"-20	7/16"	15/64"	19/32"	0.04"	SAE Grade 8	—	100	000000000	00000


5/16"-18	1/2"											9/32"	43/64"	0.04"	SAE Grade 8	—	100	000000000	00000
3/8"-16	9/16"											11/32"	3/4"	0.04"	SAE Grade 8	—	100	000000000	00000
1/2"-13	3/4"											29/64"	1 1/32"	0.05"	SAE Grade 8	—	25	000000000	00000
5/8"-11	15/16"											9/16"	1 9/32"	0.05"	SAE Grade 8	—	10	000000000	0000
M5 × 0.8 mm	8 mm											5 mm	11.8 mm	1 mm	ISO Class 10	DIN 6923	25	000000000	0000
M6 × 1 mm	10 mm											6 mm	14.2 mm	1.1 mm	ISO Class 10	DIN 6923	50	000000000	00000
M8 × 1.25 mm	13 mm											8 mm	17.9 mm	1.2 mm	ISO Class 10	DIN 6923	50	000000000	00000
M10 × 1.5 mm	15 mm											10 mm	21.8 mm	1.5 mm	ISO Class 10	DIN 6923	25	000000000	00000
M12 × 1.75 mm	18 mm											12 mm	26 mm	1.8 mm	ISO Class 10	DIN 6923	10	000000000	00000
M16 × 2 mm	24 mm											16 mm	34.5 mm	2.4 mm	ISO Class 10	DIN 6923	5	000000000	00000


M20 × 2.5 mm	30 mm											20 mm	42.8 mm	3 mm	ISO Class 10	DIN 6923	1	000000000	0000

Low-Strength Steel

About half the strength of medium-strength steel nuts, these are suitable for light duty fastening applications, such as securing access panels. Use them with screws that have a similar strength rating to avoid stripping threads during installation.

Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.

Zinc-Flake-Coated Steel—The most durable zinc coating, zinc flake is a multilayer finish that resists wear for long-term rust protection. Similar to zinc yellow-chromate, it won't hold up to harsh chemicals like stainless steel can.

				Flange
	Thread Size	Wd.	Ht.	Dia.	Thk.	Pkg. Qty.		Pkg.
Zinc-Plated Steel



		4-40	1/4"	5/32"	25/64"	0.02"	25	000000000	00000


		6-32	5/16"	11/64"	27/64"	0.02"	100	000000000	0000
		8-32	11/32"	13/64"	15/32"	0.02"	100	000000000	0000
		10-24	3/8"	7/32"	1/2"	0.03"	100	000000000	0000
		10-32	3/8"	7/32"	1/2"	0.03"	100	000000000	0000
		12-24	7/16"	15/64"	19/32"	0.04"	50	000000000	0000
		1/4"-20	7/16"	15/64"	19/32"	0.04"	100	000000000	0000
		1/4"-20	7/16"	19/64"	47/64"	0.04"	100	000000000	0000
		1/4"-28	7/16"	15/64"	19/32"	0.04"	100	000000000	0000
		5/16"-18	1/2"	9/32"	43/64"	0.04"	100	000000000	0000
		5/16"-18	1/2"	23/64"	13/16"	0.04"	100	000000000	00000


		5/16"-24	1/2"	9/32"	43/64"	0.04"	100	000000000	0000
		3/8"-16	9/16"	11/32"	3/4"	0.04"	100	000000000	00000
		3/8"-16	9/16"	25/64"	59/64"	0.04"	50	000000000	0000
		3/8"-24	9/16"	11/32"	3/4"	0.04"	100	000000000	00000
		7/16"-14	11/16"	25/64"	15/16"	0.04"	50	000000000	00000
		7/16"-20	11/16"	25/64"	15/16"	0.04"	50	000000000	00000
		1/2"-13	3/4"	29/64"	1 1/32"	0.05"	50	000000000	00000
		1/2"-13	3/4"	1/2"	1 13/64"	0.06"	10	000000000	0000
		1/2"-20	3/4"	29/64"	1 1/32"	0.05"	25	000000000	0000
		9/16"-12	7/8"	1/2"	1 3/16"	0.05"	10	000000000	00000


		9/16"-18	7/8"	1/2"	1 3/16"	0.05"	5	000000000	0000
		5/8"-11	15/16"	9/16"	1 9/32"	0.05"	25	000000000	00000
		5/8"-18	15/16"	9/16"	1 9/32"	0.05"	10	000000000	0000
		3/4"-10	1 1/8"	43/64"	1 1/2"	0.06"	10	000000000	00000
		3/4"-16	1 1/8"	43/64"	1 1/2"	0.06"	10	000000000	0000
		7/8"-9	1 3/16"	25/32"	1 11/16"	0.11"	1	000000000	00000


		Black-Oxide Steel



				6-32	5/16"	5/32"	27/64"	0.02"	100	000000000	0000


				8-32	11/32"	3/16"	15/32"	0.02"	100	000000000	0000
				10-24	3/8"	7/32"	1/2"	0.03"	100	000000000	0000
				10-32	3/8"	7/32"	1/2"	0.03"	100	000000000	0000
				12-24	7/16"	15/64"	19/32"	0.04"	25	000000000	0000
				1/4"-20	7/16"	15/64"	19/32"	0.04"	100	000000000	0000
				1/4"-28	7/16"	15/64"	19/32"	0.04"	10	000000000	0000
				5/16"-18	1/2"	9/32"	11/16"	0.04"	50	000000000	0000
				5/16"-24	1/2"	9/32"	43/64"	0.04"	50	000000000	0000
				3/8"-16	9/16"	11/32"	3/4"	0.04"	50	000000000	0000
				3/8"-24	9/16"	11/32"	3/4"	0.04"	25	000000000	0000


				7/16"-14	11/16"	25/64"	15/16"	0.04"	5	000000000	0000
				7/16"-20	11/16"	25/64"	15/16"	0.04"	10	000000000	0000
				1/2"-13	3/4"	29/64"	1 1/32"	0.05"	25	000000000	00000
				1/2"-20	3/4"	29/64"	1 1/32"	0.05"	5	000000000	0000
				9/16"-12	7/8"	1/2"	1 3/16"	0.05"	1	000000000	0000
				5/8"-11	15/16"	9/16"	1 9/32"	0.05"	5	000000000	0000
				5/8"-18	15/16"	9/16"	1 9/32"	0.05"	1	000000000	0000


Zinc-Flake-Coated Steel



				6-32	5/16"	5/32"	27/64"	0.02"	25	000000000	0000


				8-32	11/32"	13/64"	15/32"	0.02"	25	000000000	0000
				10-24	3/8"	7/32"	1/2"	0.03"	25	000000000	0000
				10-32	3/8"	7/32"	1/2"	0.03"	25	000000000	0000
				1/4"-20	7/16"	15/64"	19/32"	0.04"	10	000000000	0000
				5/16"-18	1/2"	9/32"	43/64"	0.04"	10	000000000	0000
				3/8"-16	9/16"	11/32"	3/4"	0.04"	10	000000000	0000
				3/8"-24	9/16"	11/32"	3/4"	0.04"	10	000000000	0000
				7/16"-14	11/16"	25/64"	3/4"	0.04"	5	000000000	0000
				1/2"-13	3/4"	29/64"	1 1/32"	0.05"	1	000000000	0000

Corrosion-Resistant Stainless Steel

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

Highly Corrosion-Resistant 316 Stainless Steel—Our most corrosion-resistant flange nuts, these hold up in just about any environment, including harsh weather, salt water, and most chemicals.

				Flange
	Thread Size	Wd.	Ht.	Dia.	Thk.	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel



		6-32	5/16"	11/64"	27/64"	0.07"	—	50	000000000	00000


		8-32	11/32"	13/64"	15/32"	0.07"	—	50	000000000	0000
		10-24	3/8"	7/32"	1/2"	0.09"	—	50	000000000	0000
		10-32	3/8"	7/32"	1/2"	0.09"	—	50	000000000	0000
		12-24	7/16"	15/64"	19/32"	0.04"	—	10	000000000	0000
		1/4"-20	7/16"	15/64"	19/32"	0.1"	—	50	000000000	0000
		1/4"-28	7/16"	15/64"	19/32"	0.1"	—	25	000000000	0000
		5/16"-18	1/2"	9/32"	43/64"	0.11"	—	25	000000000	0000
		5/16"-24	1/2"	9/32"	43/64"	0.11"	—	10	000000000	0000
		3/8"-16	9/16"	11/32"	3/4"	0.12"	—	25	000000000	0000
		3/8"-24	9/16"	11/32"	3/4"	0.12"	—	10	000000000	0000


		1/2"-13	3/4"	29/64"	1 1/32"	0.15"	—	10	000000000	0000
		1/2"-20	3/4"	29/64"	1 1/32"	0.05"	—	10	000000000	0000
		M3 × 0.5 mm	5.5 mm	4 mm	8 mm	0.7 mm	DIN 6923	100	000000000	0000
		M4 × 0.7 mm	7 mm	4.65 mm	10 mm	1 mm	DIN 6923	100	000000000	00000
		M5 × 0.8 mm	8 mm	5 mm	11 mm	1 mm	DIN 6923	100	000000000	00000
		M6 × 1 mm	10 mm	6 mm	14.2 mm	1.18 mm	DIN 6923	50	000000000	0000
		M8 × 1.25 mm	13 mm	8 mm	17.9 mm	1.3 mm	DIN 6923	25	000000000	0000
		M10 × 1.5 mm	15 mm	10 mm	21.8 mm	1.8 mm	DIN 6923	25	000000000	0000
		M12 × 1.75 mm	18 mm	12 mm	26 mm	2.19 mm	DIN 6923	10	000000000	0000


		Highly Corrosion-Resistant 316 Stainless Steel



				6-32	5/16"	5/32"	27/64"	0.02"	—	25	000000000	0000


				8-32	11/32"	3/16"	15/32"	0.02"	—	25	000000000	00000
				10-24	3/8"	7/32"	1/2"	0.03"	—	25	000000000	00000
				10-32	3/8"	7/32"	1/2"	0.03"	—	25	000000000	00000
				1/4"-20	7/16"	15/64"	19/32"	0.04"	—	10	000000000	0000
				1/4"-28	7/16"	15/64"	19/32"	0.09"	—	50	000000000	00000
				5/16"-18	1/2"	9/32"	11/16"	0.04"	—	10	000000000	0000
				5/16"-24	1/2"	9/32"	11/16"	0.13"	—	50	000000000	00000
				3/8"-16	9/16"	11/32"	3/4"	0.04"	—	10	000000000	0000
				3/8"-24	9/16"	11/32"	3/4"	0.13"	—	25	000000000	00000
				1/2"-13	3/4"	29/64"	1"	0.05"	—	5	000000000	0000


				M3 × 0.5 mm	5.5 mm	4 mm	8 mm	0.7 mm	DIN 6923	25	000000000	00000
				M4 × 0.7 mm	7 mm	4.65 mm	10 mm	1 mm	DIN 6923	25	000000000	00000
				M5 × 0.8 mm	8 mm	5 mm	11.8 mm	1 mm	DIN 6923	25	000000000	00000
				M6 × 1 mm	10 mm	6 mm	14.2 mm	1.18 mm	DIN 6923	25	000000000	0000
				M8 × 1.25 mm	13 mm	8 mm	17.9 mm	1.3 mm	DIN 6923	10	000000000	0000
				M10 × 1.5 mm	15 mm	10 mm	21.8 mm	1.8 mm	DIN 6923	10	000000000	0000
				M12 × 1.75 mm	18 mm	12 mm	26 mm	2.19 mm	DIN 6923	5	000000000	0000

Brass

Brass—Conductive and nonmagnetic, brass nuts are commonly used to secure electrical equipment, such as circuit board assemblies and mounting brackets, inside enclosures. They're also softer than most metals, so they won't damage other fastening components.

				Flange
	Thread Size	Wd.	Ht.	Dia.	Thk.	Pkg. Qty.		Pkg.
Brass



		1/4"-20	7/16"	15/64"	19/32"	0.04"	5	000000000	00000


		5/16"-18	1/2"	9/32"	43/64"	0.04"	5	000000000	00000
		3/8"-16	9/16"	11/32"	3/4"	0.04"	5	000000000	00000

Serrated Locknuts

Since these nuts twist on by hand and don't require much torque, they're the easiest locknuts to install. The serrated edge grips surfaces to secure equipment that experiences mild vibration, such as panel covers and small electric motors. You can reuse these locknuts over and over again, but the serrations may mar your surface.

Low-Strength Steel

Rated Grade 2, Class 6, or lower, these locknuts are about half as strong as medium-strength steel nuts. Use them with screws that have a similar strength rating to avoid stripping threads during installation.

Zinc-Plated Steel—A step up from plain steel, the zinc plating withstands occasional exposure to moisture.

	Wd.	Ht.	Pkg. Qty.		Pkg.
Zinc-Plated Steel



	8-32	11/32"	1/8"	50	000000000	000000


	10-24	3/8"	1/8"	50	000000000	00000
	10-32	3/8"	1/8"	50	000000000	00000
	1/4"-20	7/16"	3/16"	50	000000000	0000
	5/16"-18	1/2"	17/64"	50	000000000	00000
	3/8"-16	9/16"	21/64"	50	000000000	00000
	1/2"-13	3/4"	7/16"	25	000000000	00000

Serrated-Edge-Drive Tamper-Resistant Nuts

These nuts have serrations that dig into the material surface to resist loosening and are narrow to fit in tight spaces. They must be installed with a nutdriver (sold separately). Use them to reduce the risk of unwanted removal for objects in public spaces such as signs, lighting fixtures, and displays.

Aluminum—Aluminum nuts are lightweight, corrosion resistant in wet environments, and nonmagnetic.

	Nuts						Serrated-Edge Nutdrivers
	Thread Size	Dia.	Ht.	Pkg. Qty.		Pkg.		Each
Aluminum



		10-24	1/2"	3/16"	25	000000000	000000	000000000	000000


		1/4"-20	1/2"	3/16"	10	000000000	0000	000000000	00000
		5/16"-18	1/2"	3/16"	10	000000000	0000	000000000	00000

Sealing Binding Barrels and Screws

Sealed with PVC foam under the head to prevent leaks and keep contaminants out. Barrels and screws have a low-profile head with a Torx drive. Screws have a knurled shoulder that resists rotation and adhesive on the threads to resist loosening. They're also known as Camtainer fasteners. A zinc plating provides corrosion resistance in wet environments. Barrel length is measured from under the head; screw length is measured from under the shoulder.

		Barrel						Screw							Thread Locker
	For Material Thk.	Lg.	Dia.	Head Dia.	Head Ht.	Drive Size	Drive Style	Lg.	Head Dia.	Head Ht.	Drive Style	Includes	Thread Lg.	Seal Temp. Range, ° F	Type	Temp. Range, ° F	Pkg. Qty.		Pkg.
Zinc-Plated Steel







				5/16"-18

				0.695" to 0.744"	3/8"	25/64"	1"	5/32"	T55	Torx	39/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	3/8"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	000000


				0.72" to 0.814"	3/8"	25/64"	1"	5/32"	T55	Torx	47/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	1/2"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000
				0.82" to 0.869"	1/2"	25/64"	1"	5/32"	T55	Torx	39/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	3/8"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000
				0.82" to 0.939"	1/2"	25/64"	1"	5/32"	T55	Torx	47/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	1/2"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000
				0.845" to 0.939"	1/2"	25/64"	1"	5/32"	T55	Torx	55/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	5/8"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000
				0.935" to 0.984"	5/8"	25/64"	1"	5/32"	T55	Torx	39/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	3/8"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000
				0.935" to 1.054"	5/8"	25/64"	1"	5/32"	T55	Torx	47/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	1/2"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000
				0.935" to 1.179"	5/8"	25/64"	1"	5/32"	T55	Torx	55/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	5/8"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000
				0.97" to 1.064"	3/8"	25/64"	1"	5/32"	T55	Torx	63/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	3/4"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000
				0.97" to 1.189"	1/2"	25/64"	1"	5/32"	T55	Torx	63/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	3/4"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000
				0.97" to 1.304"	5/8"	25/64"	1"	5/32"	T55	Torx	63/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	3/4"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000


				1.22" to 1.439"	1/2"	25/64"	1"	5/32"	T55	Torx	1 15/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	1"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000
				1.22" to 1.554"	5/8"	25/64"	1"	5/32"	T55	Torx	1 15/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	1"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000
				1.32" to 1.369"	1"	25/64"	1"	5/32"	T55	Torx	39/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	3/8"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000
				1.32" to 1.564"	1"	25/64"	1"	5/32"	T55	Torx	55/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	5/8"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000
				1.32" to 1.689"	1"	25/64"	1"	5/32"	T55	Torx	63/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	3/4"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000
				1.32" to 1.939"	1"	25/64"	1"	5/32"	T55	Torx	1 15/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	1"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000
				1.401" to 1.495"	3/8"	25/64"	1"	5/32"	T55	Torx	1 27/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	1 3/16"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000
				1.401" to 1.62"	1/2"	25/64"	1"	5/32"	T55	Torx	1 27/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	1 3/16"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000
				1.401" to 2.12"	1"	25/64"	1"	5/32"	T55	Torx	1 27/64"	7/8"	3/16"	No Drive	Open-End Barrel, Screw	1 3/16"	-40 to 300	Epoxy Patch	-65 to 300	5	000000000	00000