Knurled Thumb Screw Nuts

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Unified Standard Class 2B

Performance

Corrosion Resistant

High Torque

DFARS Specialty Metals

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Compliant with Exemptions

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256 Products

Performance

Corrosion Resistant

Won't rust in wet and outdoor environments

213 products

High Torque

Fasten with a tool to apply extra torque and achieve an extra-tight fit

12 products

Thumb Nut Profile

Low

Fit in spaces with low clearance

24 products

Nut Type

Flange

The flange distributes pressure, so you don't need a washer

118 products

Flanged Knurled-Head Thumb Nuts

The slip-resistant head is easy to grip, while the flange distributes pressure evenly across the mounting surface without the need for a separate washer. These nuts are often used to secure screws in oversized or irregularly shaped holes since the flange covers a larger area than standard nuts.

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.

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

Passivated 18-8 Stainless Steel—With an added layer of protection, these nuts stand up to strong acids and other harsh chemicals.

Highly-Corrosion-Resistant 316 Stainless Steel—Our most corrosion-resistant thumb nuts, these hold up in just about any environment. They won't degrade from exposure to weather, salt water, and most chemicals.

		Collar
	Thread Size	Dia.	Ht.	Head Dia.	Ht.	Threading	Thread Dp.	Pkg. Qty.		Pkg.
18-8 Stainless Steel



		0-80	5/32"	1/8"	7/32"	1/4"	Fully Threaded	—	1	000000000	00000


		1-72	5/32"	1/8"	7/32"	1/4"	Fully Threaded	—	1	000000000	0000
		2-56	3/16"	1/8"	1/4"	1/4"	Fully Threaded	—	1	000000000	0000
		3-48	1/4"	1/8"	5/16"	1/4"	Fully Threaded	—	1	000000000	0000
		4-40	1/4"	1/8"	5/16"	1/4"	Fully Threaded	—	1	000000000	0000
		4-40	1/4"	1/8"	5/16"	5/16"	Partially Threaded	7/32"	1	000000000	0000
		5-40	1/4"	1/8"	5/16"	1/4"	Fully Threaded	—	1	000000000	0000
		6-32	11/32"	5/32"	3/8"	9/32"	Fully Threaded	—	1	000000000	0000
		8-32	3/8"	5/32"	7/16"	9/32"	Fully Threaded	—	1	000000000	0000
		8-32	3/8"	5/32"	7/16"	3/8"	Partially Threaded	1/4"	1	000000000	0000
		10-24	13/32"	3/16"	1/2"	11/32"	Fully Threaded	—	1	000000000	0000


		10-32	13/32"	3/16"	1/2"	11/32"	Fully Threaded	—	1	000000000	0000
		12-24	13/32"	3/16"	1/2"	11/32"	Fully Threaded	—	1	000000000	0000
		1/4"-20	15/32"	7/32"	9/16"	3/8"	Fully Threaded	—	1	000000000	0000
		1/4"-20	15/32"	7/32"	9/16"	1/2"	Partially Threaded	5/16"	1	000000000	0000
		1/4"-28	15/32"	7/32"	9/16"	3/8"	Fully Threaded	—	1	000000000	0000
		5/16"-18	17/32"	7/32"	5/8"	13/32"	Fully Threaded	—	1	000000000	0000
		5/16"-24	17/32"	7/32"	5/8"	13/32"	Fully Threaded	—	1	000000000	0000
		3/8"-16	5/8"	1/4"	3/4"	15/32"	Fully Threaded	—	1	000000000	0000
		3/8"-24	5/8"	1/4"	3/4"	15/32"	Fully Threaded	—	1	000000000	0000
		7/16"-14	11/16"	5/16"	1"	17/32"	Fully Threaded	—	1	000000000	0000


		7/16"-20	11/16"	5/16"	1"	17/32"	Fully Threaded	—	1	000000000	0000
		1/2"-13	3/4"	3/8"	1"	5/8"	Fully Threaded	—	1	000000000	0000
		M1.6 × 0.35 mm	4 mm	4 mm	6 mm	6 mm	Fully Threaded	—	1	000000000	0000
		M1.6 × 0.35 mm	4 mm	4 mm	8 mm	6 mm	Fully Threaded	—	1	000000000	0000
		M2 × 0.4 mm	4 mm	2 mm	6 mm	4 mm	Fully Threaded	—	1	000000000	0000
		M2 × 0.4 mm	4 mm	4 mm	8 mm	6 mm	Fully Threaded	—	1	000000000	0000
		M2.5 × 0.45 mm	4 mm	5 mm	12 mm	7 mm	Fully Threaded	—	1	000000000	0000
		M2.5 × 0.45 mm	5 mm	3 mm	6 mm	6 mm	Fully Threaded	—	1	000000000	0000
		M2.5 × 0.45 mm	6 mm	3 mm	8 mm	6 mm	Fully Threaded	—	1	000000000	0000
		M3 × 0.5 mm	6 mm	3 mm	8 mm	6 mm	Fully Threaded	—	1	000000000	0000


		M3 × 0.5 mm	6 mm	5 mm	16 mm	8 mm	Fully Threaded	—	1	000000000	0000
		M3.5 × 0.6 mm	9 mm	4 mm	10 mm	7 mm	Fully Threaded	—	1	000000000	0000
		M4 × 0.7 mm	8 mm	6 mm	12 mm	10 mm	Fully Threaded	—	1	000000000	0000
		M4 × 0.7 mm	8 mm	6 mm	20 mm	10 mm	Fully Threaded	—	1	000000000	00000
		M4 × 0.7 mm	9 mm	4 mm	10 mm	7 mm	Fully Threaded	—	1	000000000	0000
		M5 × 0.8 mm	10 mm	7.5 mm	16 mm	12 mm	Fully Threaded	—	1	000000000	0000
		M5 × 0.8 mm	10 mm	7.5 mm	24 mm	12 mm	Fully Threaded	—	1	000000000	00000
		M5 × 0.8 mm	11 mm	5 mm	13 mm	9 mm	Fully Threaded	—	1	000000000	0000
		M6 × 1 mm	12 mm	5 mm	13 mm	9 mm	Fully Threaded	—	1	000000000	0000
		M6 × 1 mm	12 mm	10 mm	20 mm	15 mm	Fully Threaded	—	1	000000000	00000


		M6 × 1 mm	12 mm	10 mm	24 mm	15 mm	Fully Threaded	—	1	000000000	00000
		M8 × 1.25 mm	16 mm	6 mm	19 mm	12 mm	Fully Threaded	—	1	000000000	0000
		M8 × 1.25 mm	16 mm	12 mm	24 mm	18 mm	Fully Threaded	—	1	000000000	00000
		M8 × 1.25 mm	16 mm	12 mm	31.8 mm	18 mm	Fully Threaded	—	1	000000000	00000
		M10 × 1.5 mm	20 mm	15 mm	26 mm	23 mm	Fully Threaded	—	1	000000000	00000
		M10 × 1.5 mm	20 mm	15 mm	31.8 mm	23 mm	Fully Threaded	—	1	000000000	00000
		M12 × 1.75 mm	24 mm	20 mm	31.8 mm	30 mm	Fully Threaded	—	1	000000000	00000


		Black-Oxide 18-8 Stainless Steel



		2-56	3/16"	1/8"	1/4"	1/4"	Fully Threaded	—	1	000000000	0000


		4-40	1/4"	1/8"	5/16"	1/4"	Fully Threaded	—	1	000000000	0000
		6-32	11/32"	5/32"	3/8"	9/32"	Fully Threaded	—	1	000000000	0000
		8-32	3/8"	5/32"	7/16"	9/32"	Fully Threaded	—	1	000000000	0000
		10-24	13/32"	3/16"	1/2"	11/32"	Fully Threaded	—	1	000000000	0000
		10-32	13/32"	3/16"	1/2"	11/32"	Fully Threaded	—	1	000000000	0000
		1/4"-20	15/32"	7/32"	9/16"	3/8"	Fully Threaded	—	1	000000000	0000
		5/16"-18	17/32"	7/32"	5/8"	13/32"	Fully Threaded	—	1	000000000	0000
		3/8"-16	5/8"	1/4"	3/4"	15/32"	Fully Threaded	—	1	000000000	0000
		M2.5 × 0.45 mm	5 mm	3 mm	6 mm	6 mm	Fully Threaded	—	1	000000000	0000
		M3 × 0.5 mm	6 mm	3 mm	8 mm	6 mm	Fully Threaded	—	1	000000000	0000


		M3.5 × 0.6 mm	9 mm	4 mm	10 mm	7 mm	Fully Threaded	—	1	000000000	0000
		M4 × 0.7 mm	9 mm	4 mm	10 mm	7 mm	Fully Threaded	—	1	000000000	0000
		M5 × 0.8 mm	11 mm	5 mm	13 mm	9 mm	Fully Threaded	—	1	000000000	0000
		M6 × 1 mm	12 mm	5 mm	13 mm	9 mm	Fully Threaded	—	1	000000000	0000
		M8 × 1.25 mm	16 mm	6 mm	19 mm	12 mm	Fully Threaded	—	1	000000000	00000


		Passivated 18-8 Stainless Steel



				6-32	11/32"	5/32"	3/8"	9/32"	Fully Threaded	—	1	000000000	0000


				8-32	3/8"	5/32"	7/16"	9/32"	Fully Threaded	—	1	000000000	0000
				10-24	13/32"	3/16"	1/2"	11/32"	Fully Threaded	—	1	000000000	0000
				10-32	13/32"	3/16"	1/2"	11/32"	Fully Threaded	—	1	000000000	0000
				1/4"-20	15/32"	7/32"	9/16"	3/8"	Fully Threaded	—	1	000000000	0000
				1/4"-28	15/32"	7/32"	9/16"	3/8"	Fully Threaded	—	1	000000000	0000
				5/16"-18	17/32"	7/32"	5/8"	13/32"	Fully Threaded	—	1	000000000	0000
				3/8"-16	5/8"	1/4"	3/4"	15/32"	Fully Threaded	—	1	000000000	0000
				3/8"-24	5/8"	1/4"	3/4"	15/32"	Fully Threaded	—	1	000000000	0000
				7/16"-14	11/16"	5/16"	1"	17/32"	Fully Threaded	—	1	000000000	0000
				1/2"-13	3/4"	3/8"	1"	5/8"	Fully Threaded	—	1	000000000	0000


				M2.5 × 0.45 mm	5 mm	3 mm	6 mm	6 mm	Fully Threaded	—	1	000000000	0000
				M3 × 0.5 mm	6 mm	3 mm	8 mm	6 mm	Fully Threaded	—	1	000000000	0000
				M4 × 0.7 mm	9 mm	4 mm	10 mm	7 mm	Fully Threaded	—	1	000000000	0000
				M5 × 0.8 mm	11 mm	5 mm	13 mm	9 mm	Fully Threaded	—	1	000000000	0000
				M6 × 1 mm	12 mm	5 mm	13 mm	9 mm	Fully Threaded	—	1	000000000	0000
				M8 × 1.25 mm	16 mm	6 mm	19 mm	12 mm	Fully Threaded	—	1	000000000	00000


				Highly-Corrosion-Resistant 316 Stainless Steel



						4-40	1/4"	1/8"	5/16"	1/4"	Fully Threaded	—	1	000000000	00000


						6-32	11/32"	5/32"	3/8"	9/32"	Fully Threaded	—	1	000000000	00000
						8-32	3/8"	5/32"	7/16"	9/32"	Fully Threaded	—	1	000000000	00000
						10-24	13/32"	3/16"	1/2"	11/32"	Fully Threaded	—	1	000000000	00000
						10-32	13/32"	3/16"	1/2"	11/32"	Fully Threaded	—	1	000000000	00000
						1/4"-20	15/32"	7/32"	9/16"	3/8"	Fully Threaded	—	1	000000000	00000
5/16"-18						17/32"	7/32"	5/8"	13/32"	Fully Threaded	—	1	000000000	00000
3/8"-16	5/8"					1/4"	3/4"	15/32"	Fully Threaded	—	1	000000000	00000
1/2"-13	13/16"					1/4"	1"	1/2"	Fully Threaded	—	1	000000000	00000

Brass

Brass—With a warm, polished look, these nuts are often chosen for their appearance. Similar to 18-8 stainless steel, brass is corrosion resistant enough to stand up to wet environments. It is also softer than other metals, so it's easier to thread together.

Zinc-Plated Brass—The zinc plating offers better corrosion resistance than plain brass to stand up to solvents and mild chemicals.

		Collar
	Thread Size	Dia.	Ht.	Head Dia.	Ht.	Threading	Pkg. Qty.		Pkg.
Brass



		0-80	5/32"	1/8"	7/32"	1/4"	Fully Threaded	1	000000000	00000


		1-72	3/16"	1/8"	1/4"	1/4"	Fully Threaded	1	000000000	0000
		2-56	3/16"	1/8"	1/4"	1/4"	Fully Threaded	1	000000000	0000
		3-48	1/4"	1/8"	5/16"	1/4"	Fully Threaded	1	000000000	0000
		4-40	5/16"	9/64"	3/8"	1/4"	Fully Threaded	25	000000000	00000
		5-40	11/32"	5/32"	3/8"	9/32"	Fully Threaded	1	000000000	0000
		6-32	5/16"	9/64"	3/8"	1/4"	Fully Threaded	25	000000000	00000
		8-32	3/8"	3/16"	7/16"	5/16"	Fully Threaded	25	000000000	00000
		10-24	7/16"	13/64"	1/2"	21/64"	Fully Threaded	10	000000000	0000
		10-32	7/16"	13/64"	1/2"	21/64"	Fully Threaded	10	000000000	0000
		12-24	1/2"	13/64"	9/16"	11/32"	Fully Threaded	10	000000000	00000


		1/4"-20	9/16"	7/32"	5/8"	3/8"	Fully Threaded	10	000000000	00000
		1/4"-28	15/32"	7/32"	9/16"	3/8"	Fully Threaded	1	000000000	0000
		5/16"-18	39/64"	15/64"	11/16"	13/32"	Fully Threaded	10	000000000	00000
		3/8"-16	5/8"	1/4"	3/4"	15/32"	Fully Threaded	1	000000000	0000


		Zinc-Plated Brass



				8-32	3/8"	5/32"	7/16"	9/32"	Fully Threaded	1	000000000	00000


				10-24	13/32"	3/16"	1/2"	11/32"	Fully Threaded	1	000000000	00000
				10-32	13/32"	3/16"	1/2"	11/32"	Fully Threaded	1	000000000	00000
				1/4"-20	15/32"	7/32"	9/16"	3/8"	Fully Threaded	1	000000000	00000
				5/16"-18	17/32"	7/32"	5/8"	13/32"	Fully Threaded	1	000000000	00000
				3/8"-16	5/8"	1/4"	3/4"	15/32"	Fully Threaded	1	000000000	00000
				M2.5 × 0.45 mm	5 mm	3 mm	6 mm	6 mm	Fully Threaded	1	000000000	0000
				M3 × 0.5 mm	6 mm	3 mm	8 mm	6 mm	Fully Threaded	1	000000000	0000
				M3.5 × 0.6 mm	9 mm	4 mm	10 mm	7 mm	Fully Threaded	1	000000000	0000
				M4 × 0.7 mm	9 mm	4 mm	10 mm	7 mm	Fully Threaded	1	000000000	0000
				M5 × 0.8 mm	11 mm	5 mm	13 mm	9 mm	Fully Threaded	1	000000000	0000


				M6 × 1 mm	12 mm	5 mm	13 mm	9 mm	Fully Threaded	1	000000000	0000
				M8 × 1.25 mm	16 mm	6 mm	19 mm	12 mm	Fully Threaded	1	000000000	0000

Knurled-Head Thumb Nuts

Get a good grip on these nuts, even with oily fingers. They have a raised, slip-resistant head, so you can tighten them by hand and make controlled adjustments. Knurled-head nuts have a smaller profile than wing nuts, so they fit in tighter spots.

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.

		Collar
	Thread Size	Dia.	Ht.	Head Dia.	Ht.	Threading	Thread Dp.	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel



		0-80	7/32"	3/16"	3/8"	1/4"	Fully Threaded	—	—	1	000000000	00000


		1-72	7/32"	3/16"	3/8"	1/4"	Fully Threaded	—	—	1	000000000	0000
		2-56	7/32"	3/16"	3/8"	1/4"	Fully Threaded	—	—	1	000000000	0000
		3-48	1/4"	1/4"	1/2"	3/8"	Fully Threaded	—	—	1	000000000	0000
		4-40	1/4"	1/4"	1/2"	3/8"	Partially Threaded	1/4"	—	1	000000000	0000
		4-40	1/4"	1/4"	3/4"	3/8"	Fully Threaded	—	—	1	000000000	0000
		4-40	1/4"	1/2"	1/2"	5/8"	Partially Threaded	3/8"	—	1	000000000	0000
		4-40	1/4"	1/2"	3/4"	5/8"	Fully Threaded	—	—	1	000000000	0000
		5-40	1/4"	1/4"	1/2"	3/8"	Fully Threaded	—	—	1	000000000	0000
		6-32	1/4"	1/4"	1/2"	3/8"	Partially Threaded	9/32"	—	1	000000000	0000
		6-32	1/4"	1/4"	3/4"	3/8"	Partially Threaded	9/32"	—	1	000000000	0000


		6-32	1/4"	1/2"	1/2"	5/8"	Partially Threaded	11/32"	—	1	000000000	0000
		6-32	1/4"	1/2"	3/4"	5/8"	Fully Threaded	—	—	1	000000000	0000
		8-32	5/16"	1/4"	1/2"	3/8"	Fully Threaded	—	—	1	000000000	0000
		8-32	5/16"	1/4"	3/4"	3/8"	Fully Threaded	—	—	1	000000000	0000
		8-32	5/16"	1/2"	1/2"	5/8"	Partially Threaded	3/8"	—	1	000000000	0000
		8-32	5/16"	1/2"	3/4"	5/8"	Partially Threaded	1/4"	—	1	000000000	0000
		10-24	3/8"	1/4"	1/2"	7/16"	Fully Threaded	—	—	1	000000000	0000
		10-24	3/8"	1/4"	1"	7/16"	Fully Threaded	—	—	1	000000000	0000
		10-24	3/8"	1/2"	1/2"	11/16"	Fully Threaded	—	—	1	000000000	0000
		10-24	3/8"	1/2"	1"	11/16"	Partially Threaded	1/4"	—	1	000000000	0000


		10-32	3/8"	1/4"	1/2"	7/16"	Fully Threaded	—	—	1	000000000	0000
		10-32	3/8"	1/4"	1"	7/16"	Fully Threaded	—	—	1	000000000	0000
		10-32	3/8"	1/2"	1/2"	11/16"	Partially Threaded	1/4"	—	1	000000000	0000
		10-32	3/8"	1/2"	1"	11/16"	Partially Threaded	1/4"	—	1	000000000	0000
		12-24	1/2"	1/4"	3/4"	1/2"	Fully Threaded	—	—	1	000000000	0000
		1/4"-20	1/2"	1/4"	3/4"	1/2"	Fully Threaded	—	—	1	000000000	0000
		1/4"-20	1/2"	1/4"	1"	1/2"	Fully Threaded	—	—	1	000000000	0000
		1/4"-20	1/2"	1/2"	3/4"	3/4"	Partially Threaded	1/4"	—	1	000000000	0000
		1/4"-20	1/2"	1/2"	1"	3/4"	Partially Threaded	1/4"	—	1	000000000	0000
		1/4"-20	1/2"	3/4"	1"	1"	Partially Threaded	1/2"	—	1	000000000	0000


		1/4"-28	1/2"	1/4"	3/4"	1/2"	Fully Threaded	—	—	1	000000000	0000
		1/4"-28	1/2"	1/2"	3/4"	3/4"	Fully Threaded	—	—	1	000000000	0000
		5/16"-18	1/2"	3/8"	1"	5/8"	Fully Threaded	—	—	1	000000000	0000
		5/16"-24	1/2"	3/8"	1"	5/8"	Fully Threaded	—	—	1	000000000	0000
		3/8"-16	5/8"	1/2"	1"	3/4"	Fully Threaded	—	—	1	000000000	00000
		3/8"-24	5/8"	1/2"	1"	3/4"	Fully Threaded	—	—	1	000000000	00000
		7/16"-14	5/8"	3/4"	1 1/8"	15/16"	Fully Threaded	—	—	1	000000000	00000
		7/16"-20	5/8"	3/4"	1 1/8"	15/16"	Fully Threaded	—	—	1	000000000	00000
		1/2"-13	5/8"	3/4"	1 1/8"	15/16"	Fully Threaded	—	—	1	000000000	00000
		1/2"-20	5/8"	3/4"	1 1/8"	15/16"	Fully Threaded	—	—	1	000000000	00000


		M2 × 0.4 mm	5 mm	4 mm	10 mm	6 mm	Fully Threaded	—	—	1	000000000	0000
		M2.5 × 0.45 mm	6 mm	5 mm	12 mm	7.5 mm	Fully Threaded	—	—	1	000000000	0000
		M3 × 0.5 mm	6 mm	5 mm	12 mm	7.5 mm	Fully Threaded	—	DIN 466	1	000000000	0000
		M3.5 × 0.6 mm	8 mm	6 mm	16 mm	9.5 mm	Fully Threaded	—	—	1	000000000	0000
		M4 × 0.7 mm	8 mm	6 mm	16 mm	9.5 mm	Fully Threaded	—	DIN 466	1	000000000	0000
		M5 × 0.8 mm	10 mm	7.5 mm	20 mm	11.5 mm	Fully Threaded	—	DIN 466	1	000000000	0000
		M6 × 1 mm	12 mm	10 mm	24 mm	15 mm	Fully Threaded	—	DIN 466	1	000000000	0000
		M8 × 1.25 mm	16 mm	12 mm	30 mm	18 mm	Fully Threaded	—	DIN 466	1	000000000	0000
		M10 × 1.5 mm	20 mm	15 mm	36 mm	23 mm	Fully Threaded	—	DIN 466	1	000000000	0000
		M12 × 1.75 mm	19 mm	12 mm	25.4 mm	22 mm	Fully Threaded	—	—	1	000000000	0000

M14 × 2 mm	28 mm	20 mm	56 mm	30 mm	Fully Threaded	—	—	1	000000000	00000
M16 × 2 mm	32 mm	25 mm	64 mm	35 mm	Fully Threaded	—	—	1	000000000	00000

Black-Oxide 18-8 Stainless Steel



		2-56	7/32"	3/16"	3/8"	1/4"	Fully Threaded	—	—	1	000000000	0000


		4-40	1/4"	1/2"	1/2"	5/8"	Partially Threaded	3/8"	—	1	000000000	0000
		6-32	1/4"	1/4"	1/2"	3/8"	Partially Threaded	3/32"	—	1	000000000	0000
		8-32	5/16"	1/4"	3/4"	3/8"	Fully Threaded	—	—	1	000000000	0000
		8-32	5/16"	1/2"	3/4"	5/8"	Partially Threaded	1/4"	—	1	000000000	0000
		10-24	3/8"	1/4"	1"	7/16"	Fully Threaded	—	—	1	000000000	0000
		10-32	3/8"	1/2"	1/2"	11/16"	Partially Threaded	1/4"	—	1	000000000	0000
		12-24	1/2"	1/4"	3/4"	1/2"	Fully Threaded	—	—	1	000000000	0000
		1/4"-20	1/2"	1/4"	3/4"	1/2"	Fully Threaded	—	—	1	000000000	0000
		1/4"-20	1/2"	1/4"	1"	1/2"	Fully Threaded	—	—	1	000000000	0000
		1/4"-20	1/2"	3/4"	1"	1"	Partially Threaded	1/2"	—	1	000000000	0000


		1/4"-28	1/2"	1/2"	3/4"	3/4"	Fully Threaded	—	—	1	000000000	0000
		5/16"-18	1/2"	3/8"	1"	5/8"	Fully Threaded	—	—	1	000000000	00000
		5/16"-24	1/2"	3/8"	1"	5/8"	Fully Threaded	—	—	1	000000000	00000
		3/8"-16	5/8"	1/2"	1"	3/4"	Fully Threaded	—	—	1	000000000	00000
		3/8"-24	5/8"	1/2"	1"	3/4"	Fully Threaded	—	—	1	000000000	00000
		7/16"-14	5/8"	3/4"	1 1/8"	15/16"	Fully Threaded	—	—	1	000000000	00000
		1/2"-13	5/8"	3/4"	1 1/8"	15/16"	Fully Threaded	—	—	1	000000000	00000
		1/2"-20	5/8"	3/4"	1 1/8"	15/16"	Fully Threaded	—	—	1	000000000	00000
		M2 × 0.4 mm	5 mm	4 mm	10 mm	6 mm	Fully Threaded	—	—	1	000000000	0000
		M3 × 0.5 mm	6 mm	5 mm	12 mm	7.5 mm	Fully Threaded	—	DIN 466	1	000000000	0000


		M4 × 0.7 mm	8 mm	6 mm	16 mm	9.5 mm	Fully Threaded	—	DIN 466	1	000000000	0000
		M5 × 0.8 mm	10 mm	7.5 mm	20 mm	11.5 mm	Fully Threaded	—	DIN 466	1	000000000	0000
		M6 × 1 mm	12 mm	10 mm	24 mm	15 mm	Fully Threaded	—	DIN 466	1	000000000	0000
		M8 × 1.25 mm	16 mm	12 mm	30 mm	18 mm	Fully Threaded	—	DIN 466	1	000000000	00000
		M10 × 1.5 mm	20 mm	15 mm	36 mm	23 mm	Fully Threaded	—	DIN 466	1	000000000	00000
		M12 × 1.75 mm	19 mm	12 mm	25.4 mm	22 mm	Fully Threaded	—	—	1	000000000	00000


		Highly-Corrosion-Resistant 316 Stainless Steel



				4-40	1/4"	1/4"	1/2"	3/8"	Fully Threaded	—	—	1	000000000	0000


				6-32	1/4"	1/4"	3/4"	3/8"	Fully Threaded	—	—	1	000000000	0000
				8-32	5/16"	1/4"	1/2"	3/8"	Fully Threaded	—	—	1	000000000	0000
				10-24	3/8"	1/4"	1/2"	7/16"	Fully Threaded	—	—	1	000000000	0000
				10-32	3/8"	1/4"	1"	7/16"	Fully Threaded	—	—	1	000000000	0000
				1/4"-20	1/2"	1/4"	3/4"	1/2"	Fully Threaded	—	—	1	000000000	00000
				5/16"-18	1/2"	3/8"	1"	5/8"	Fully Threaded	—	—	1	000000000	00000
				3/8"-16	5/8"	1/2"	1"	3/4"	Fully Threaded	—	—	1	000000000	00000
				1/2"-13	3/4"	5/8"	1 1/8"	15/16"	Fully Threaded	—	—	1	000000000	00000

Plastic

Reinforced Acetal—The best plastic for damp and wet environments, acetal won't swell or lose strength if exposed to moisture. These nuts are reinforced with an aluminum threaded insert, so they can handle more torque than other plastic nuts and won't crack during installation.

Nylon—These nuts thread on smoothly and resist abrasion to stand up to scratches and bumps. Nylon will swell and weaken when exposed to moisture, so it's best for dry environments.

		Collar
	Thread Size	Dia.	Ht.	Head Dia.	Ht.	Color	Threading	Insert Material	Pkg. Qty.		Pkg.
Reinforced Acetal



		4-40	9/32"	3/64"	5/16"	3/16"	Black	Fully Threaded	Aluminum	10	000000000	00000


		6-32	23/64"	3/64"	3/8"	7/32"	Black	Fully Threaded	Aluminum	10	000000000	0000
		8-32	25/64"	3/32"	1/2"	17/64"	Black	Fully Threaded	Aluminum	10	000000000	0000
		10-24	31/64"	1/8"	5/8"	19/64"	Black	Fully Threaded	Aluminum	10	000000000	0000
		10-32	31/64"	1/8"	5/8"	19/64"	Black	Fully Threaded	Aluminum	10	000000000	0000
		1/4"-20	35/64"	1/16"	1"	23/64"	Black	Fully Threaded	Aluminum	10	000000000	00000
		1/4"-20	35/64"	3/16"	3/4"	23/64"	Black	Fully Threaded	Aluminum	10	000000000	00000
		1/4"-28	35/64"	1/16"	1"	23/64"	Black	Fully Threaded	Aluminum	10	000000000	00000
		1/4"-28	35/64"	3/16"	3/4"	23/64"	Black	Fully Threaded	Aluminum	10	000000000	00000
		5/16"-18	41/64"	1/8"	1"	27/64"	Black	Fully Threaded	Aluminum	10	000000000	00000
		5/16"-24	41/64"	1/8"	1"	27/64"	Black	Fully Threaded	Aluminum	10	000000000	00000


		M3 × 0.5 mm	9.1 mm	1.2 mm	9.6 mm	5.6 mm	Black	Fully Threaded	Aluminum	10	000000000	0000
		M4 × 0.7 mm	9.9 mm	2.4 mm	13 mm	6.7 mm	Black	Fully Threaded	Aluminum	10	000000000	0000
		M5 × 0.8 mm	11.5 mm	3.2 mm	16 mm	7.5 mm	Black	Fully Threaded	Aluminum	10	000000000	0000
		M6 × 1 mm	13.6 mm	4.8 mm	19 mm	9.1 mm	Black	Fully Threaded	Aluminum	10	000000000	00000
		M6 × 1 mm	14.3 mm	1.6 mm	26 mm	9.1 mm	Black	Fully Threaded	Aluminum	10	000000000	00000
		M8 × 1.25 mm	16.3 mm	3.2 mm	26 mm	10.7 mm	Black	Fully Threaded	Aluminum	10	000000000	00000


		Nylon



				6-32	1/4"	1/4"	1/2"	3/8"	Black	Fully Threaded	—	1	000000000	0000


				6-32	1/4"	1/4"	3/4"	3/8"	Black	Fully Threaded	—	1	000000000	0000
				8-32	5/16"	1/4"	1/2"	3/8"	Black	Fully Threaded	—	1	000000000	0000
				8-32	5/16"	1/2"	1/2"	5/8"	Black	Fully Threaded	—	1	000000000	0000
				10-24	3/8"	1/4"	1/2"	7/16"	Black	Fully Threaded	—	1	000000000	0000
				10-32	3/8"	1/4"	1"	7/16"	Black	Fully Threaded	—	1	000000000	0000
				1/4"-20	1/2"	1/4"	3/4"	1/2"	Black	Fully Threaded	—	1	000000000	0000
				1/4"-20	1/2"	3/4"	1"	1"	Black	Fully Threaded	—	1	000000000	0000

Low-Profile Knurled-Head Thumb Nuts

Twist these thumb nuts into spaces without a lot of clearance. They have a short, slip-resistant head, so you can grip them easily and make controlled adjustments in cramped spots. You can also use them as jam nuts by threading them against another nut to hold it in place.

Steel

Black-Oxide Steel—A dark, matte coating creates a finished look. These nuts offer minimal corrosion resistance, so they're best for dry environments.

		Collar
	Thread Size	Dia.	Ht.	Head Dia.	Ht.	Specs. Met	Pkg. Qty.		Pkg.
Black-Oxide Steel



		10-32	1/2"	1/16"	3/4"	7/32"	—	1	000000000	00000


		1/4"-20	1/2"	1/16"	3/4"	7/32"	—	1	000000000	0000
		5/16"-18	1/2"	1/16"	3/4"	5/16"	—	1	000000000	0000
		3/8"-16	1/2"	1/16"	3/4"	5/16"	—	1	000000000	0000
		1/2"-13	3/4"	1/8"	1"	3/8"	—	1	000000000	0000
		5/8"-11	3/4"	1/8"	1"	3/8"	—	1	000000000	0000
		M4 × 0.7 mm	8 mm	0.5 mm	16 mm	4 mm	DIN 467	1	000000000	0000
		M5 × 0.8 mm	10 mm	1 mm	20 mm	5 mm	DIN 467	1	000000000	0000
		M6 × 1 mm	12 mm	1 mm	24 mm	6 mm	DIN 467	1	000000000	0000
		M8 × 1.25 mm	16 mm	2 mm	30 mm	8 mm	DIN 467	1	000000000	0000
		M10 × 1.5 mm	20 mm	2 mm	36 mm	10 mm	DIN 467	1	000000000	0000


		M12 × 1.75 mm	20 mm	2 mm	36 mm	10 mm	DIN 467	1	000000000	0000

High-Torque Low-Profile Knurled-Head Thumb Nuts

Twist the slip-resistant head by hand, then insert a T-handle hex key into one of the holes to apply extra torque for a tight fit. Nuts have a low-profile head that fits into cramped spaces. You can also use them as jam nuts by threading them against another nut to hold it in place.

Steel

Black-Oxide Steel—A dark, matte coating creates a finished look. These nuts offer minimal corrosion resistance, so they're best for dry environments.

	Head Dia.	Ht.	No. of Holes	Hole Dia.		Each
Black-Oxide Steel



	10-24	3/4"	1/4"	4	3/32"	000000000	00000


	1/4"-20	7/8"	1/4"	4	3/32"	000000000	0000
	5/16"-18	1"	3/8"	4	3/16"	000000000	0000
	3/8"-16	1"	3/8"	4	3/16"	000000000	0000
	1/2"-13	1 1/8"	7/16"	4	7/32"	000000000	0000
	5/8"-11	1 3/8"	1/2"	4	1/4"	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.

	Head Dia.	Ht.	No. of Holes	Hole Dia.		Each
18-8 Stainless Steel



	10-24	3/4"	1/4"	4	3/32"	000000000	00000


	1/4"-20	7/8"	1/4"	4	3/32"	000000000	0000
	5/16"-18	1"	3/8"	4	3/16"	000000000	00000
	3/8"-16	1"	3/8"	4	3/16"	000000000	00000
	1/2"-13	1 1/8"	7/16"	4	7/32"	000000000	00000
	5/8"-11	1 3/8"	1/2"	4	1/4"	000000000	00000