Nonmetallic Acorn Nuts | McMaster-Carr

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REACH

Export Control Classification Number (ECCN)

EAR99

DFARS Specialty Metals

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Chemical Resistant

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Metric Class 6H

Unified Standard Class 2B

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38 Products

Cap Nuts

Conceal and protect protruding screw threads while fastening parts together. These nuts help prevent damage to surrounding materials and reduce injuries. Also known as acorn nuts, they have a smooth, rounded head that creates a finished look.

Plastic

Image of Product. Front orientation. Cap Nuts. Cap Nuts.

Nylon 6/6—Slippery and abrasion resistant, these nuts thread on smoothly and stand up to daily wear and tear. Nylon will swell and weaken when exposed to moisture, so it's best for dry environments.

								Pkg.
	Thread Size	Wd.	Ht.	Temp. Range, ° F	Choose a Color	Pkg. Qty.		1-9	10-49	50-Up
Nylon 6/6


		4-40	1/4"	9/32"	-40 to 185	Black , Off-White	100	94922A300	000000	000000	000000
		6-32	19/64"	11/32"	-40 to 185	Black , Off-White	100	94922A305	00000	00000	00000
		8-32	21/64"	3/8"	-40 to 185	Black , Off-White	100	94922A310	00000	00000	00000
		10-24	23/64"	13/32"	-40 to 185	Black , Off-White	100	94922A315	00000	00000	00000
		10-32	23/64"	13/32"	-40 to 185	Black , Off-White	100	94922A320	00000	00000	00000
		1/4"-20	27/64"	15/32"	-40 to 185	Black , Off-White	100	94922A325	00000	00000	00000
		1/4"-28	27/64"	15/32"	-40 to 185	Black , Off-White	100	94922A330	00000	00000	00000
		5/16"-18	1/2"	17/32"	-40 to 185	Black , Off-White	50	94922A335	00000	00000	00000
		5/16"-24	1/2"	17/32"	-40 to 185	Black , Off-White	50	94922A340	00000	00000	00000
		3/8"-16	9/16"	5/8"	-40 to 185	Black , Off-White	25	94922A345	00000	00000	0000
		3/8"-24	9/16"	5/8"	-40 to 185	Black , Off-White	25	94922A350	00000	0000	0000
		7/16"-14	3/4"	13/16"	-40 to 185	Black , Off-White	10	94922A430	0000	0000	0000
		1/2"-13	3/4"	13/16"	-40 to 185	Black , Off-White	25	94922A355	00000	00000	00000
		1/2"-20	3/4"	13/16"	-40 to 185	Black , Off-White	10	94922A360	0000	0000	0000
		5/8"-11	15/16"	31/32"	-40 to 185	Black , Off-White	20	94922A365	00000	00000	00000
		M4 × 0.7 mm	7 mm	8 mm	-40 to 185	Black , Off-White	100	90527A505	00000	00000	00000
		M5 × 0.8 mm	8 mm	10 mm	-40 to 185	Black , Off-White	100	90527A510	00000	00000	00000
		M6 × 1 mm	10 mm	12 mm	-40 to 185	Black , Off-White	100	90527A515	00000	00000	00000
		M8 × 1.25 mm	13 mm	15 mm	-40 to 185	Black , Off-White	50	90527A520	00000	00000	00000
		M10 × 1.5 mm	17 mm	18 mm	-40 to 185	Black , Off-White	25	90527A525	00000	00000	00000
		M12 × 1.75 mm	19 mm	20.5 mm	-40 to 185	Black , Off-White	25	90527A530	00000	00000	00000

Caps for Hex Nuts

Cap Installed on Hex

Nut

Image of Product. Front orientation. Protective Caps. Caps for Hex Nuts.

Seal out moisture and dirt to prevent corrosion and buildup on threads. These caps snap onto hex nuts for a tight fit.

Polyethylene—These tough caps are hard and wear resistant to hold up against scrapes and gouges.

	Inside Ht.	Flexibility	Max. Temp., ° F	Color	Pkg. Qty.		Pkg.
Polyethylene


	7/16"	29/64"	Rigid	170	Black	10	9267K55	00000
	1/2"	17/32"	Rigid	170	Black	10	9267K41	0000
	35/64"	1/2"	Rigid	170	Black	10	9267K43	0000
	43/64"	25/32"	Rigid	170	Black	10	9267K31	0000
	3/4"	27/32"	Rigid	170	Black	10	9267K45	00000
	7/8"	15/16"	Rigid	170	Black	5	9267K32	0000
	15/16"	1"	Rigid	170	Black	5	9267K47	00000
	1 1/16"	1"	Rigid	170	Black	5	9267K33	0000
	1 1/4"	1 13/32"	Rigid	170	Black	5	9267K34	00000
	1 13/32"	1 7/16"	Rigid	170	Black	5	9267K35	00000
	1 5/8"	1 23/32"	Rigid	170	Black	1	9267K36	0000
	1 13/16"	2"	Rigid	170	Black	1	9267K17	0000
	1 31/32"	2 3/32"	Rigid	170	Black	1	9267K18	00000
	2 3/16"	2 19/64"	Rigid	170	Black	1	9267K51	00000
	2 3/8"	2 5/16"	Rigid	170	Black	1	9267K52	00000
	2 9/16"	2 19/64"	Rigid	170	Black	1	9267K53	00000
	2 3/4"	2 29/64"	Rigid	170	Black	1	9267K54	00000