Snap-On Protective Caps | McMaster-Carr

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Shape

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Export Control Classification Number (ECCN)

EAR99

U.S.–Mexico–Canada Agreement (USMCA) Qualifying

Yes

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Flange Standard

Washer Material

Bolt Hole Center-to-Center

SAE Pipe Flange Size

54 Products

For Use With

Fasteners

Cover nuts or screws for rust protection and a finished look

33 products

Pipe Flanges

Protect flanges from damage or mask from coatings

21 products

Performance

High Visibility

Easy to see when installed or if dropped on the floor

15 products

Cap Type

Hinged

Flip open for frequent access to screws without misplacing the cap

5 products

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

Snap-On Caps for Screws

Conceal screw heads for a finished look that protects people and parts from getting snagged. To install, insert your screw through the base and snap the cap over it. When it's time to remove, use a tool such as a screwdriver to pop it off.

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

	Inside Ht.	OD	Flexibility	Max. Temp.	Choose a Color	Pkg. Qty.		Pkg.
Polyethylene



	No. 4	1/8"	1/2"	Rigid	Not Rated	Black, White	25	91620A120	000000


	No. 6	1/8"	1/2"	Rigid	Not Rated	Black, White	25	91620A130	00000
	No. 6, No. 8	13/64"	33/64"	Rigid	Not Rated	Silver	25	91620A600	00000
	No. 8	7/32"	1/2"	Rigid	Not Rated	Black, White	25	91620A140	00000
	No. 10	11/64"	23/32"	Rigid	Not Rated	Black	25	91620A930	0000
	No. 12	11/64"	23/32"	Rigid	Not Rated	Black	25	91620A950	0000
	1/4"	5/16"	1 3/16"	Rigid	Not Rated	Black, White	25	91620A150	00000
	5/16"	5/16"	1 3/16"	Rigid	Not Rated	Black, White	25	91620A160	00000
	3/8"	5/16"	1 3/16"	Rigid	Not Rated	Black, White	25	91620A170	00000
	7/16"	5/16"	1 3/16"	Rigid	Not Rated	Black, White	25	91620A180	00000
	1/2"	5/16"	1 3/16"	Rigid	Not Rated	Black, White	25	91620A190	00000

Hinged Caps for Screws

Flip open for frequent access to screws without misplacing the cap. These conceal screw heads to keep out dirt and prevent snags. To install, insert a screw through the base and close the top.

Polypropylene—Strong, durable, and won't absorb moisture.

	Inside Ht.	OD	Flexibility	Max. Temp., ° F	Choose a Color	Pkg. Qty.		Pkg.
Polypropylene



	No. 4, No. 5, No. 6	3/32"	15/32"	Rigid	250	Black, White	100	91620A100	00000


	No. 6, No. 8, No. 10, M3, M4, M5	9/64"	9/16"	Rigid	135	Beige, Dark Blue, Dark Brown, Dark Green, Dark Red, Light Brown, Light Gray, Off-White, Silver	100	91620A400	00000
	No. 8, No. 10	7/64"	35/64"	Rigid	250	Black, White	100	91620A200	00000
	1/4"	5/32"	45/64"	Rigid	250	Black, White	100	91620A300	00000
	3/8"	19/64"	61/64"	Rigid	250	Black, White	100	91620A110	00000

Snap-On Caps for Pipe Flanges

Cap Installed

on ANSI Flange

For ANSI Flanges

For SAE Flanges

Align the tabs with the bolt holes and snap on for a perfect fit. These caps protect flange threads from damage, or mask them during painting and coating.

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

	Max. Temp., ° F	Color	For Bolt Hole Ctr.-to-Ctr.	Pkg. Qty.		Pkg.
Polyethylene







	For ANSI Flanges

	1/2	150	Rigid	175	Red	2 3/8"	10	4262N11	00000


	3/4	150	Rigid	175	Red	2 3/4"	10	4262N12	0000
	1	150	Rigid	175	Red	3 1/8"	10	4262N13	00000
	1 1/2	150	Rigid	175	Red	3 7/8"	10	4262N14	00000
	2	150	Rigid	175	Red	4 3/4"	10	4262N15	00000
	2 1/2	150	Rigid	175	Red	5 1/2"	1	4262N16	0000
	3	150	Rigid	175	Red	6"	1	4262N17	0000
	4	150	Rigid	175	Red	7 1/2"	1	4262N18	0000
	6	150	Rigid	175	Blue	9 5/8"	1	4262N311	0000




			For SAE Flanges

			1/2	3000	Rigid	175	Blue	0.69", 1 1/2"	10	7962N11	0000


			1/2	6000	Rigid	175	Red	0.72", 1.59"	10	7962N17	0000
			3/4	3000	Rigid	175	Blue	0.88", 1.88"	10	7962N12	00000
			3/4	6000	Rigid	175	Red	0.94", 2"	10	7962N18	0000
			1	3000	Rigid	175	Blue	1.03", 2.06"	10	7962N13	00000
			1	6000	Rigid	175	Red	1.09", 2 1/4"	10	7962N19	00000
			1 1/4	3000	Rigid	175	Blue	1.19", 2.31"	10	7962N14	00000
			1 1/4	6000	Rigid	175	Red	1 1/4", 2.63"	10	7962N21	00000
			1 1/2	3000	Rigid	175	Blue	1.41", 2 3/4"	10	7962N15	00000
			1 1/2	6000	Rigid	175	Red	1.44", 3.13"	10	7962N22	00000
			2	3000	Rigid	175	Blue	1.69", 3.06"	10	7962N16	00000


			2	6000	Rigid	175	Red	1 3/4", 3.81"	10	7962N23	00000