Nylon Thumb Nuts | McMaster-Carr

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58 Products

Threaded Through-Hole Knobs


Style 2	Style 6	Style 14

Long shafts can thread through these knobs for mounting versatility. The knobs provide a secure grip to position, tighten, and hold fixtures, equipment, and machinery.

Style 2—Two-Arm Grip

Style 2

Nylon—Plastic knobs are a lightweight alternative to metal. They resist oil, grease, and solvents. Nylon has good wear resistance.

	Thread		Head		Hub					Each
	Sz.	Dp.	Wd.	Ht.	Dia.	Ht.	Insert Material	Temp. Range, ° F		1-9	10-Up
Black Nylon



		1/4"-20	3/8"	1 1/8"	9/16"	1/2"	1/8"	Brass	-15 to 150	0000000	00000	00000

Style 6—Four-Arm Grip

Style 6

Nylon—Plastic knobs are a lightweight alternative to metal. They resist oil, grease, and solvents. Nylon has good wear resistance.

	Thread		Head		Hub					Each
	Sz.	Dp.	Dia.	Ht.	Dia.	Ht.	Insert Material	Temp. Range, ° F		1-9	10-Up
Black Nylon



		1/4"-20	1/2"	1 1/4"	3/8"	1/2"	1/2"	Brass	-15 to 150	0000000	00000	00000


		1/4"-20	1/2"	2 1/4"	9/16"	1"	7/16"	Brass	-15 to 150	0000000	0000	0000

Style 14—Seven-Arm Grip

Style 14

Nylon—Plastic knobs are a lightweight alternative to metal. They resist oil, grease, and solvents. Nylon has good wear resistance.

	Thread		Head		Hub					Each
	Sz.	Dp.	Dia.	Ht.	Dia.	Ht.	Insert Material	Temp. Range, ° F		1-9	10-Up
Black Nylon



		1/4"-20	7/16"	1 1/4"	7/16"	9/16"	3/8"	Steel	-40 to 200	0000000	00000	00000


		5/16"-18	1/2"	1 9/16"	1/2"	11/16"	1/2"	Steel	-40 to 200	0000000	0000	0000
		3/8"-16	9/16"	2"	5/8"	7/8"	11/16"	Steel	-40 to 200	0000000	0000	0000
		1/2"-13	13/16"	2 1/2"	3/4"	1"	13/16"	Steel	-40 to 200	0000000	0000	0000
		M6 × 1 mm	11 mm	32 mm	10 mm	14 mm	10 mm	Zinc-Plated Steel	-40 to 200	0000000	0000	0000
		M8 × 1.25 mm	13 mm	40 mm	12 mm	18 mm	13 mm	Zinc-Plated Steel	-40 to 200	0000000	0000	0000
		M10 × 1.5 mm	15 mm	50 mm	15 mm	22 mm	17 mm	Zinc-Plated Steel	-40 to 200	0000000	0000	0000
		M12 × 1.75 mm	20 mm	63 mm	19 mm	26 mm	21 mm	Zinc-Plated Steel	-40 to 200	0000000	0000	0000

Vibration-Resistant Threaded Through-Hole Knobs


Style 1	Style 2

Like locknuts, these knobs have a nylon insert that grips threads to resist loosening. Long shafts can thread through these knobs for mounting versatility. Use the knobs as a grip to position, tighten, and hold fixtures, equipment, and machinery. Made of plastic, all resist oil, grease, and solvents.

Style 1—Two-Arm Grip

Style 1

	Thread		Head		Hub					Each
	Sz.	Dp.	Wd.	Ht.	Dia.	Ht.	Insert Material	Temp. Range, ° F		1-9	10-Up
Black Polypropylene



		1/4"-20	5/16"	2"	5/8"	3/4"	1/2"	Zinc-Plated Steel	-15 to 125	00000000	00000	00000


		5/16"-18	5/16"	2"	5/8"	3/4"	1/2"	Zinc-Plated Steel	-15 to 125	00000000	0000	0000
		5/16"-18	5/16"	2 1/2"	5/8"	3/4"	1/2"	Zinc-Plated Steel	-15 to 125	00000000	0000	0000
		3/8"-16	1/2"	2"	5/8"	3/4"	1/2"	Zinc-Plated Steel	-15 to 125	00000000	0000	0000
		3/8"-16	1/2"	2 1/2"	5/8"	3/4"	1/2"	Zinc-Plated Steel	-15 to 125	00000000	0000	0000

Style 2—Five-Arm Grip

Style 2

	Thread		Head		Hub					Each
	Sz.	Dp.	Dia.	Ht.	Dia.	Ht.	Insert Material	Temp. Range, ° F		1-9	10-Up
Black Polypropylene



		1/4"-20	5/16"	1 1/4"	7/16"	3/4"	3/4"	Zinc-Plated Steel	-15 to 125	00000000	00000	00000


		1/4"-20	5/16"	1 3/4"	7/16"	3/4"	3/4"	Zinc-Plated Steel	-15 to 125	00000000	0000	0000
		1/4"-20	5/16"	2 1/4"	1/2"	7/8"	1/4"	Zinc-Plated Steel	-15 to 125	00000000	0000	0000
		5/16"-18	3/8"	1 1/4"	7/16"	3/4"	5/16"	Zinc-Plated Steel	-15 to 125	00000000	0000	0000
		5/16"-18	3/8"	1 3/4"	7/16"	3/4"	3/4"	Zinc-Plated Steel	-15 to 125	00000000	0000	0000
		5/16"-18	3/8"	2 1/4"	1/2"	7/8"	1/4"	Zinc-Plated Steel	-15 to 125	00000000	0000	0000
		3/8"-16	7/16"	2 1/4"	1/2"	7/8"	1/4"	Zinc-Plated Steel	-15 to 125	00000000	0000	0000

Nylon-Insert Wing Nuts

The strongest hold of all our thumb nuts. The wings give you extra leverage for a tight fit, while a nylon insert grips the screw to prevent loosening from vibration. However, the insert may become brittle if exposed to high temperatures. You can reuse these nuts a handful of times, but their holding power will decrease with each use.

Zinc

Zinc—Zinc nuts have better corrosion resistance than steel to withstand occasional exposure to moisture. However, they're not as strong.

	Wd.	Ht.	Base Dia.	Insert Max. Temp., ° F	Pkg. Qty.		Pkg.
Zinc



	8-32	1 1/32"	1/2"	3/8"	225	10	000000000	000000


	10-24	1 1/32"	1/2"	3/8"	225	25	000000000	00000
	10-32	1 1/32"	1/2"	3/8"	225	25	000000000	00000
	1/4"-20	1 1/4"	19/32"	7/16"	225	20	000000000	00000
	1/4"-28	1 1/4"	19/32"	7/16"	225	20	000000000	00000
	5/16"-18	1 1/2"	23/32"	9/16"	225	10	000000000	00000
	5/16"-24	1 1/2"	23/32"	9/16"	225	10	000000000	00000
	3/8"-16	1 1/2"	23/32"	9/16"	225	10	000000000	00000

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.

Plastic

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	Pkg. Qty.		Pkg.
Nylon



		6-32	1/4"	1/4"	1/2"	3/8"	Black	Fully Threaded	1	000000000	00000


		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

Wing Nuts

Style 1

The easiest nuts to twist on and off by hand, these are commonly used to fasten parts that need to be frequently disassembled, such as access panels and covers. The wings give you more leverage than knurled-head nuts, so you can apply greater torque and achieve a tighter fit.

Plastic

Style 1

Nylon 6/6—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.

								Pkg.
	Thread Size	Wd.	Ht.	Base Dia.	Choose a Color	Pkg. Qty.		1-9	10-49	50-Up
Nylon 6/6







				Style 1

				4-40	7/8"	1/2"	25/64"	Black , Off-White	100	000000000	000000	000000	000000


				6-32	7/8"	1/2"	25/64"	Black , Off-White	100	000000000	00000	00000	00000
				8-32	7/8"	1/2"	25/64"	Black , Off-White	100	000000000	00000	00000	00000
				10-24	7/8"	1/2"	25/64"	Black , Off-White	100	000000000	00000	00000	00000
				10-32	7/8"	1/2"	25/64"	Black , Off-White	100	000000000	00000	00000	00000
				1/4"-20	1 1/8"	5/8"	9/16"	Black , Off-White	50	000000000	00000	0000	0000
				5/16"-18	1 3/8"	3/4"	41/64"	Black , Off-White	50	000000000	00000	0000	0000
				3/8"-16	1 3/8"	3/4"	41/64"	Black , Off-White	50	000000000	00000	00000	0000
				1/2"-13	1 5/8"	7/8"	27/32"	Black , Off-White	50	000000000	00000	00000	00000
				M4 × 0.7 mm	22.8 mm	12.2 mm	10.2 mm	Black , Off-White	50	000000000	0000	0000	0000
				M5 × 0.8 mm	22.8 mm	12.2 mm	10.2 mm	Black , Off-White	50	000000000	0000	0000	0000


				M6 × 1 mm	27.7 mm	16 mm	14.2 mm	Black , Off-White	50	000000000	00000	00000	0000
				M8 × 1.25 mm	34.8 mm	18.3 mm	16.2 mm	Black , Off-White	50	000000000	00000	00000	0000
				M10 × 1.5 mm	34.8 mm	18.3 mm	16.2 mm	Black , Off-White	50	000000000	00000	00000	0000
				M12 × 1.75 mm	42.2 mm	22.7 mm	21.4 mm	Black , Off-White	25	000000000	0000	0000	0000

Choose-a-Color Threaded Through-Hole Knobs

Identify equipment controls and components at a glance by their color. Long shafts can thread through these knobs for mounting versatility. Use the knobs as a grip to position, tighten, and hold fixtures, equipment, and machinery. Made of plastic, all resist oil, grease, and solvents.

Four-Arm Grip

Image of Product. Front orientation. Knobs. Choose-a-Color Threaded Through-Hole Knobs.

	Thread		Head		Hub						Each
	Sz.	Dp.	Dia.	Ht.	Dia.	Ht.	Insert Material	Temp. Range, ° F	Choose a Color		1-9	10-Up
Nylon



		1/4"-20	1/2"	1 3/4"	9/16"	3/4"	7/16"	Brass	15 to 245	Black , Blue , Green , Orange , Red , White	0000000	00000	00000


		5/16"-18	1/2"	2 1/4"	9/16"	1"	7/16"	Brass	15 to 245	Black , Blue , Green , Orange , Red , White	0000000	0000	0000
		3/8"-16	1/2"	2 1/4"	9/16"	1"	7/16"	Brass	15 to 245	Black , Blue , Green , Orange , Red , White	0000000	0000	0000
		1/2"-13	5/8"	2 1/4"	9/16"	1"	7/16"	Brass	15 to 245	Black , Blue , Green , Orange , Red , White	0000000	0000	0000