Sorbothane Bumpers | McMaster-Carr

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70 Products

Load-Rated Adhesive-Back Bumpers

Style 1

Unlike our other adhesive-back bumpers, these are tested to ensure they'll support the load of your application. Use them as feet on instruments and small appliances to limit sliding, vibration, and noise. The adhesive back forms a tight grip without scratching or discoloring your surface. They're comparable to Bumpon bumpers.

Style 1

Super-Cushioning Sorbothane—Our softest bumpers have a feel that ranges from the softness of a gel insole to the firmness of a pencil eraser. They’re often used to cushion fragile materials. These bumpers boast shock-absorbing properties, making them a smart choice for mounting sensitive electronics.

Hardness Rating—The harder the bumper, the better it withstands impact and abrasion over time. The softer the bumper, the more cushioning it provides for objects made of glass, soft metal, and other fragile materials. Bumpers with a medium rating offer a balance of impact resistance and cushioning.

	Ht.	Max. Load, lb.	Hardness	Hardness Rating	Color	Temp., ° F	Nonmarking	For Use Outdoors		Each
Super-Cushioning Sorbothane



	1/4"	1/8"	0.06	Durometer 30 OO	Extra Soft	Black	-20 to 140	Yes	No	8215K201	00000


	1/4"	1/8"	0.12	Durometer 50 OO	Extra Soft	Black	-20 to 150	Yes	No	8215K202	0000
	1/4"	1/8"	0.35	Durometer 70 OO	Soft	Black	-20 to 150	Yes	No	8215K203	0000
	1/2"	1/4"	0.5	Durometer 30 OO	Extra Soft	Black	-20 to 140	Yes	No	8215K204	0000
	1/2"	1/4"	0.7	Durometer 50 OO	Extra Soft	Black	-20 to 150	Yes	No	8215K205	0000
	1/2"	1/4"	1	Durometer 70 OO	Soft	Black	-20 to 150	Yes	No	8215K206	0000
	3/4"	3/8"	0.9	Durometer 30 OO	Extra Soft	Black	-20 to 160	Yes	No	8215K1	0000
	3/4"	3/8"	1	Durometer 50 OO	Extra Soft	Black	-20 to 160	Yes	No	8215K5	0000
	3/4"	3/8"	3	Durometer 70 OO	Soft	Black	-20 to 160	Yes	No	8215K9	0000
	1"	1/2"	2	Durometer 30 OO	Extra Soft	Black	-20 to 140	Yes	No	8215K207	0000
	1"	1/2"	4	Durometer 50 OO	Extra Soft	Black	-20 to 150	Yes	No	8215K208	0000


	1"	1/2"	8	Durometer 70 OO	Soft	Black	-20 to 150	Yes	No	8215K209	0000
	1 1/4"	5/8"	4	Durometer 30 OO	Extra Soft	Black	-20 to 160	Yes	No	8215K2	0000
	1 1/4"	5/8"	10	Durometer 50 OO	Extra Soft	Black	-20 to 160	Yes	No	8215K6	0000
	1 1/4"	5/8"	22	Durometer 70 OO	Soft	Black	-20 to 160	Yes	No	8215K11	0000
	1 1/2"	3/4"	7	Durometer 30 OO	Extra Soft	Black	-20 to 140	Yes	No	8215K21	0000
	1 1/2"	3/4"	14	Durometer 50 OO	Extra Soft	Black	-20 to 150	Yes	No	8215K211	0000
	1 1/2"	3/4"	30	Durometer 70 OO	Soft	Black	-20 to 150	Yes	No	8215K212	0000
	1 3/4"	7/8"	12	Durometer 30 OO	Extra Soft	Black	-20 to 140	Yes	No	8215K213	0000
	1 3/4"	7/8"	27	Durometer 70 OO	Soft	Black	-20 to 150	Yes	No	8215K215	0000
	2"	1"	16	Durometer 30 OO	Extra Soft	Black	-20 to 160	Yes	No	8215K3	0000


	2"	1"	24	Durometer 50 OO	Extra Soft	Black	-20 to 160	Yes	No	8215K7	0000
	2"	1"	38	Durometer 70 OO	Soft	Black	-20 to 160	Yes	No	8215K12	0000
	2 1/4"	1 1/8"	52	Durometer 70 OO	Soft	Black	-20 to 150	Yes	No	8215K218	00000
	2 1/2"	1 1/4"	35	Durometer 30 OO	Extra Soft	Black	-20 to 160	Yes	No	8215K91	00000
	2 1/2"	1 1/4"	60	Durometer 50 OO	Extra Soft	Black	-20 to 160	Yes	No	8215K92	00000
	2 1/2"	1 1/4"	80	Durometer 70 OO	Soft	Black	-20 to 160	Yes	No	8215K93	00000

Load-Rated Reinforced Threaded-Stud Bumpers

Style 1

Tested to support the load of your application. These bumpers support a wide range of equipment—from a 50 lb. saw to a 5,000 lb. air compressor. They also help reduce vibration and protect whatever they’re mounted to. All have a metal base plate for added strength and a longer service life than all-rubber bumpers. No separate fasteners are needed—just twist them into a threaded hole.

Super-Cushioning Sorbothane with Steel Stud and Base Plate

Style 1

Our softest bumpers have a feel that ranges from the softness of a gel insole to the firmness of a pencil eraser. They’re often used to cushion fragile materials. These bumpers boast shock-absorbing properties, making them a smart choice for mounting sensitive electronics.

	Thread
	Size	Lg.	OD	Ht.	Max. Load, lb.	Deflection @ Cap.	Hardness	Hardness Rating	Color	Temp., ° F	Nonmarking	For Use Outdoors		Each
Style 1



		8-32	1/2"	3/4"	1/2"	4	0.09"	Durometer 50 OO	Extra Soft	Black	-20 to 160	No	No	2572K21	00000


		8-32	1/2"	3/4"	1/2"	16	0.08"	Durometer 70 OO	Soft	Black	-20 to 160	No	No	2572K24	0000
		1/4"-20	1/2"	1 1/2"	1"	14	0.16"	Durometer 50 OO	Extra Soft	Black	-20 to 160	No	No	2572K22	00000
		1/4"-20	1/2"	1 1/2"	1"	60	0.15"	Durometer 70 OO	Soft	Black	-20 to 160	No	No	2572K25	00000
		1/4"-20	1/2"	1 3/4"	27/32"	22	0.15"	Durometer 50 OO	Extra Soft	Black	-20 to 160	No	No	2572K23	00000
		1/4"-20	1/2"	1 3/4"	27/32"	100	0.12"	Durometer 70 OO	Soft	Black	-20 to 160	No	No	2572K26	00000

Load-Rated Reinforced Threaded-Hole Bumpers

Style 3

Tested to ensure they’ll bear the weight of your application, these bumpers support everything from a 50-pound saw to a 2,000-pound air compressor. They also help reduce vibration and protect whatever they're mounted to. All have a metal base plate for added strength and a longer life than all-rubber bumpers. Twist them onto a threaded stud on your equipment, or pair them with your own stud to create a custom-length bumper.

Super-Cushioning Sorbothane with Steel Base Plate

Style 3

	Thread
	Size	Dp.	OD	Ht.	Max. Load, lb.	Deflection @ Cap.	Hardness	Hardness Rating	Color	Temp., ° F	Nonmarking	For Use Outdoors		Each
Style 3



		8-32	1/4"	3/4"	1/2"	5	0.13"	Durometer 50 OO	Extra Soft	Black	-20 to 160	No	No	2572K8	00000


		8-32	1/4"	3/4"	1/2"	8	0.06"	Durometer 70 OO	Soft	Black	-20 to 160	No	No	2572K9	0000
		1/4"-20	3/8"	1 1/2"	1"	18	0.23"	Durometer 50 OO	Extra Soft	Black	-20 to 160	No	No	2572K12	00000
		1/4"-20	3/8"	1 1/2"	1"	25	0.1"	Durometer 70 OO	Soft	Black	-20 to 160	No	No	2572K13	00000
		1/4"-20	3/8"	1 3/4"	27/32"	40	0.25"	Durometer 50 OO	Extra Soft	Black	-20 to 160	No	No	2572K15	00000
		1/4"-20	3/8"	1 3/4"	27/32"	70	0.1"	Durometer 70 OO	Soft	Black	-20 to 160	No	No	2572K16	00000
		M4 × 0.7 mm	6 mm	19 mm	13 mm	5	0.13"	Durometer 50 OO	Extra Soft	Black	-20 to 160	No	No	2572K31	00000
		M4 × 0.7 mm	6 mm	19 mm	13 mm	8	0.04"	Durometer 70 OO	Soft	Black	-20 to 160	No	No	2572K32	00000
		M6 × 1 mm	9 mm	38 mm	25 mm	25	0.1"	Durometer 70 OO	Soft	Black	-20 to 160	No	No	2572K42	00000
		M6 × 1 mm	9 mm	45 mm	22 mm	40	0.25"	Durometer 50 OO	Extra Soft	Black	-20 to 160	No	No	2572K33	00000
		M6 × 1 mm	9 mm	45 mm	22 mm	70	0.13"	Durometer 70 OO	Soft	Black	-20 to 160	No	No	2572K34	00000

Hollow Push-In Bumpers

Style 2

Both bumper and grommet, these protect equipment from impact while routing wire or tubing through a center hole. All have stems that contract and expand for a snug fit. No fasteners are needed—just push them into a hole for quick installation.

Super-Cushioning Sorbothane

Style 2

	Stem Ht.	OD	ID	Ht.	Hardness	Hardness Rating	Color	Temp., ° F	Nonmarking	For Use Outdoors	Pkg. Qty.		Pkg.
Style 2



	29/64"	1/8"	1"	17/64"	3/16"	Durometer 30 OO	Extra Soft	Black	-20 to 140	Yes	No	1	8638T112	00000


	29/64"	1/8"	1"	9/32"	3/16"	Durometer 50 OO	Extra Soft	Black	-10 to 160	Yes	No	1	8638T23	0000
	29/64"	1/8"	1"	9/32"	3/16"	Durometer 70 OO	Soft	Black	-10 to 160	Yes	No	1	8638T43	0000
	29/64"	13/32"	1"	1/4"	3/16"	Durometer 30 OO	Extra Soft	Black	-20 to 140	Yes	No	1	8638T113	0000
	29/64"	13/32"	1"	9/32"	3/16"	Durometer 50 OO	Extra Soft	Black	-10 to 160	Yes	No	1	8638T21	0000
	29/64"	13/32"	1"	9/32"	3/16"	Durometer 70 OO	Soft	Black	-10 to 160	Yes	No	1	8638T41	0000
	1/2"	1/16"	23/32"	17/64"	9/64"	Durometer 30 OO	Extra Soft	Black	-20 to 140	Yes	No	1	8638T111	0000
	1/2"	1/16"	3/4"	9/32"	5/32"	Durometer 50 OO	Extra Soft	Black	-10 to 160	Yes	No	1	8638T25	0000
	1/2"	1/16"	3/4"	9/32"	5/32"	Durometer 70 OO	Soft	Black	-10 to 160	Yes	No	1	8638T45	0000

Vibration-Damping Sandwich Mounts with Stud and Insert

Install these mounts between a threaded stud and a hole inside or under equipment. Our jack-of-all-trades option, they isolate vibration to protect circuit boards, air compressors, and everything in between. They also muffle noise so you can work or hold a conversation around buzzing and thumping machinery.

Super-Cushioning Sorbothane

Image of Product. Front orientation. Vibration-Damping Mounts. Vibration-Damping Sandwich Mounts with Stud and Insert.

Our softest mounts compress deeply under load to isolate low-frequency vibrations. They're often used to protect sensitive equipment, small pumps, and fans.

								Thread						Each
	Thread Size	Cap. per Mount, lb.	Deflection @ Cap.	Shear Cap. per Mount	Deflection @ Shear Cap.	Ht.	Dia.	Lg.	Dp.	Hardness	Temp. Range, ° F	Color		1-24	25-99	100-Up
Zinc-Plated Steel Stud and Steel Insert



		8-32	6	0.15"	Not Rated	Not Rated	1/2"	3/4"	1/2"	1/4"	Durometer 50 OO	-20 to 160	Black	20125K62	000000	000000	000000


		8-32	12	0.1"	Not Rated	Not Rated	1/2"	3/4"	1/2"	1/4"	Durometer 70 OO	-20 to 160	Black	20125K72	00000	00000	00000
		1/4"-20	18	0.2"	Not Rated	Not Rated	1"	1 1/2"	1/2"	3/8"	Durometer 50 OO	-20 to 160	Black	20125K64	00000	00000	00000
		1/4"-20	30	0.2"	Not Rated	Not Rated	1"	1 1/2"	1/2"	3/8"	Durometer 70 OO	-20 to 160	Black	20125K73	00000	00000	00000
		1/4"-20	40	0.17"	Not Rated	Not Rated	13/16"	1 3/4"	1/2"	3/8"	Durometer 50 OO	-20 to 160	Black	20125K69	00000	00000	00000
		1/4"-20	75	0.17"	Not Rated	Not Rated	13/16"	1 3/4"	1/2"	3/8"	Durometer 70 OO	-20 to 160	Black	20125K74	00000	00000	00000
		M4 × 0.7 mm	6	0.1"	Not Rated	Not Rated	1/2"	3/4"	1/2"	1/4"	Durometer 50 OO	-20 to 160	Black	20125K75	00000	00000	00000
		M4 × 0.7 mm	12	0.1"	Not Rated	Not Rated	1/2"	3/4"	1/2"	1/4"	Durometer 70 OO	-20 to 160	Black	20125K76	00000	00000	00000
		M6 × 1 mm	18	0.2"	Not Rated	Not Rated	1"	1 1/2"	1/2"	3/8"	Durometer 50 OO	-20 to 160	Black	20125K66	00000	00000	00000
		M6 × 1 mm	29	0.2"	Not Rated	Not Rated	1"	1 1/2"	1/2"	3/8"	Durometer 70 OO	-20 to 160	Black	20125K77	00000	00000	00000
		M6 × 1 mm	40	0.17"	Not Rated	Not Rated	7/8"	1 3/4"	1/2"	3/8"	Durometer 50 OO	-20 to 160	Black	20125K71	00000	00000	00000


		M6 × 1 mm	75	0.17"	Not Rated	Not Rated	7/8"	1 3/4"	1/2"	3/8"	Durometer 70 OO	-20 to 160	Black	20125K78	00000	00000	00000

Vibration-Damping Sandwich Mounts with Studs

Install these mounts between two holes inside or under equipment. Our jack-of-all-trades option, they isolate vibration to protect circuit boards, air compressors, and everything in between. They also muffle noise so you can work or hold a conversation around buzzing and thumping machinery.

Super-Cushioning Sorbothane

Image of Product. Front orientation. Vibration-Damping Mounts. Vibration-Damping Sandwich Mounts with Studs.

Our softest mounts compress deeply under load to isolate low-frequency vibrations. They're often used to protect sensitive equipment, small pumps, and fans.

													Each
	Thread Size	Cap. per Mount, lb.	Deflection @ Cap.	Shear Cap. per Mount	Deflection @ Shear Cap.	Ht.	Dia.	Thread Lg.	Hardness	Temp. Range, ° F	Color		1-24	25-99	100-Up
Zinc-Plated Steel Stud



		8-32	8	0.15"	Not Rated	Not Rated	1/2"	3/4"	1/2"	Durometer 50 OO	-20 to 160	Black	20125K61	000000	000000	000000


		1/4"-20	16	0.2"	Not Rated	Not Rated	1"	1 1/2"	1/2"	Durometer 50 OO	-20 to 160	Black	20125K63	00000	00000	00000
		1/4"-20	40	0.17"	Not Rated	Not Rated	13/16"	1 3/4"	1/2"	Durometer 50 OO	-20 to 160	Black	20125K68	00000	00000	00000
		M6 × 1 mm	15	0.2"	Not Rated	Not Rated	1"	1 1/2"	1/2"	Durometer 50 OO	-20 to 160	Black	20125K67	00000	00000	00000
		M6 × 1 mm	40	0.17"	Not Rated	Not Rated	7/8"	1 3/4"	1/2"	Durometer 50 OO	-20 to 160	Black	20125K65	00000	00000	00000