C Shims | McMaster-Carr

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112 Products

Performance

Corrosion Resistant

Won't rust in wet and outdoor environments

102 products

Chemical Resistant

Won't degrade when exposed to most chemicals

15 products

Performance

Lightweight

Use in automation and other applications with weight limits

21 products

Identification Type

Color Coded

Different colors for each thickness to quickly spot the right size

21 products

Slotted Shims

Image of ProductInUse. Front orientation. Shims. Precision Adjust, Slot, Sold Individually.


Tab End	Square End

Slip these shims around existing mounting fasteners to precisely align and level components such as pumps, compressors, and gearboxes with motors, all without disassembling them. They’re also good for leveling machines on uneven surfaces. To reduce sizing errors, these shims are either labeled with their thickness so there's no need to measure or color coded by thickness to quickly spot the right size.

You can stack multiple shims to achieve your exact thickness, but stacking more than four may cause them to shift. Remember, fewer shims are better, so a couple of thicker shims are more stable than a bunch of thin shims.

18-8 Stainless Steel—The choice for wet and outdoor environments, these shims resist rust. However, they’ll corrode or pit when exposed to salt water and chemicals.

Highly Corrosion-Resistant 316 Stainless Steel—Superior to 18-8 stainless steel, these shims won't degrade when exposed to harsh weather, salt water, and most chemicals.

Painted Aluminum—These shims are an alternative to stainless steel for rust resistance but aren't as hard so they may not retain their shape as well. One-third the weight of steel, they’re commonly used in robotics and automation.

Plastic—Softer than metal, these shims won't mar delicate surfaces and they will never rust.

Insertion Tools—Ease shim insertion and removal, keeping your fingers clear in the process.

	Shims														Insertion Tools
				Slot						Each		Package
	Thk.	Thk. Tolerance	For Max. Screw Size	Wd.	Dp.	Min. Hardness	Identification Type	Color	End Shape		Each	Pkg. Qty.		Pkg.		Each
18-8 Stainless Steel







				4" Lg. × 4" Wd. (Shim Trade Size C)

				0.001"	-0.00005" to 0.00005"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	9722K23	00000	20	9722K223	000000	97235K93	00000


				0.002"	-0.0001" to 0.0001"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	9722K27	0000	20	9722K227	00000	97235K93	0000
				0.003"	-0.00015" to 0.00015"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	9722K33	0000	20	9722K343	00000	97235K93	0000
				0.004"	-0.0002" to 0.0002"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	9722K37	0000	20	9722K347	00000	97235K93	0000
				0.005"	-0.00025" to 0.00025"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	9722K43	0000	20	9722K403	00000	97235K93	0000
				0.008"	-0.0004" to 0.0004"	1 1/8"	1 3/16"	2 19/32"	Rockwell C42	Labeled	—	Tab	9722K114	0000	20	9722K314	00000	97235K93	0000
				0.01"	-0.0005" to 0.0005"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	9722K47	0000	20	9722K407	00000	97235K93	0000
				0.012"	-0.0006" to 0.0006"	1 1/8"	1 3/16"	2 19/32"	Rockwell C42	Labeled	—	Tab	9722K165	0000	20	9722K305	00000	97235K93	0000
				0.015"	-0.00075" to 0.00075"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	9722K53	0000	20	9722K503	00000	97235K93	0000
				0.02"	-0.001" to 0.001"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	9722K57	0000	20	9722K507	00000	97235K93	0000
				0.025"	-0.00125" to 0.00125"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	9722K63	0000	20	9722K603	00000	97235K93	0000


				0.03"	-0.0015" to 0.0015"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	9722K689	0000	20	9722K683	00000	97235K93	0000
				0.04"	-0.003" to 0.003"	1 1/8"	1 3/16"	2 19/32"	Rockwell B70	Labeled	—	Tab	9722K136	0000	20	9722K336	00000	97235K93	0000
				0.05"	-0.002" to 0.002"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	9722K67	0000	20	9722K607	00000	97235K93	0000
				0.06"	-0.003" to 0.003"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	9722K714	0000	20	9722K716	000000	97235K93	0000
				0.075"	-0.002" to 0.002"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	9722K73	0000	20	9722K703	000000	97235K93	0000
				0.1"	-0.004" to 0.004"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	9722K77	00000	20	9722K707	000000	97235K93	0000
				0.125"	-0.004" to 0.004"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	9722K83	00000	20	9722K803	000000	97235K93	0000
				0.187"	-0.01" to 0.01"	1 1/8"	1 3/16"	2 19/32"	Rockwell B70	Labeled	—	Tab	9722K724	00000	4	9722K734	00000	97235K93	0000
				0.25"	-0.01" to 0.01"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	9722K117	00000	4	9722K317	000000	97235K93	0000
				0.375"	-0.01" to 0.01"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	9722K126	00000	4	9722K306	000000	97235K93	0000


				0.5"	-0.015" to 0.015"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	9722K128	00000	4	9722K308	000000	97235K93	0000
				0.75"	-0.06" to 0.06"	1 1/8"	1 3/16"	2 19/32"	Rockwell B70	Labeled	—	Tab	9722K725	000000	2	9722K735	000000	97235K93	0000
				1"	-0.07" to 0.07"	1 1/8"	1 3/16"	2 19/32"	Rockwell B70	Labeled	—	Tab	9722K726	000000	2	9722K736	000000	97235K93	0000




						100 mm Lg. × 100 mm Wd. (Shim Trade Size C)

						0.025 mm	-0.0025 mm to 0.0025 mm	M30	31.8 mm	50.8 mm	Rockwell C40	Labeled	—	Tab	9722K413	0000	10	9722K433	00000	97235K93	0000


						0.05 mm	-0.0035 mm to 0.0035 mm	M30	31.8 mm	50.8 mm	Rockwell C40	Labeled	—	Tab	9722K513	0000	10	9722K533	00000	97235K93	0000
						0.1 mm	-0.007 mm to 0.007 mm	M30	31.8 mm	50.8 mm	Rockwell C40	Labeled	—	Tab	9722K913	0000	10	9722K903	00000	97235K93	0000
						0.2 mm	-0.015 mm to 0.015 mm	M30	31.8 mm	50.8 mm	Rockwell C40	Labeled	—	Tab	9722K193	0000	10	9722K323	00000	97235K93	0000
						0.25 mm	-0.02 mm to 0.02 mm	M30	31.8 mm	50.8 mm	Rockwell C40	Labeled	—	Tab	9722K293	0000	10	9722K283	00000	97235K93	0000
						0.4 mm	-0.032 mm to 0.032 mm	M30	31.8 mm	50.8 mm	Rockwell C40	Labeled	—	Tab	9722K393	0000	10	9722K397	00000	97235K93	0000
						0.5 mm	-0.032 mm to 0.032 mm	M30	31.8 mm	50.8 mm	Rockwell C40	Labeled	—	Tab	9722K493	0000	10	9722K483	00000	97235K93	0000
						0.7 mm	-0.032 mm to 0.032 mm	M30	31.8 mm	50.8 mm	Rockwell B70	Labeled	—	Tab	9722K593	00000	10	9722K583	00000	97235K93	0000
						1 mm	-0.05 mm to 0.05 mm	M30	31.8 mm	50.8 mm	Not Rated	Labeled	—	Tab	9722K693	00000	10	9722K687	00000	97235K93	0000
						2 mm	-0.07 mm to 0.07 mm	M30	31.8 mm	50.8 mm	Not Rated	Labeled	—	Tab	9722K793	00000	10	9722K783	000000	97235K93	0000


						Highly Corrosion-Resistant 316 Stainless Steel







								4" Lg. × 4" Wd. (Shim Trade Size C)

		0.005"						-0.0001" to 0.0001"	1 1/8"	1 1/4"	2 3/4"	Rockwell C36	Labeled	—	Tab	94420A340	0000	4	94420A426	00000	94420A500	0000


		0.01"	-0.0005" to 0.0005"					1 1/8"	1 1/4"	2 3/4"	Rockwell C36	Labeled	—	Tab	94420A347	0000	4	94420A427	00000	94420A500	0000
		0.015"	-0.0005" to 0.0005"					1 1/8"	1 1/4"	2 3/4"	Rockwell C36	Labeled	—	Tab	94420A355	0000	4	94420A428	00000	94420A500	0000
		0.02"	-0.00025" to 0.00025"					1 1/8"	1 1/4"	2 3/4"	Rockwell C36	Labeled	—	Tab	94420A362	0000	4	94420A429	00000	94420A500	0000
		0.025"	-0.0008" to 0.0008"					1 1/8"	1 1/4"	2 3/4"	Rockwell C36	Labeled	—	Tab	94420A370	0000	4	94420A431	00000	94420A500	0000
		0.05"	-0.002" to 0.002"					1 1/8"	1 1/4"	2 3/4"	Rockwell C36	Labeled	—	Tab	94420A377	0000	4	94420A432	00000	94420A500	0000
		0.125"	-0.003" to 0.003"					1 1/8"	1 1/4"	2 3/4"	Rockwell C36	Labeled	—	Tab	94420A385	00000	4	94420A433	00000	94420A500	0000


		Painted Aluminum







										4" Lg. × 4" Wd. (Shim Trade Size C)

										0.002"	-0.0002" to 0.0002"	7/8"	1"	2 1/2"	Not Rated	Color Coded	Red	Square	———	0	20	9302K62	00000	———	0


										0.003"	-0.0003" to 0.0003"	7/8"	1"	2 1/2"	Not Rated	Color Coded	Green	Square	———	0	20	9302K63	00000	———	0
										0.005"	-0.0005" to 0.0005"	7/8"	1"	2 1/2"	Not Rated	Color Coded	Blue	Square	———	0	20	9302K65	00000	———	0
										0.01"	-0.001" to 0.001"	7/8"	1"	2 1/2"	Not Rated	Color Coded	Brown	Square	———	0	10	9302K81	00000	———	0
										0.015"	-0.0015" to 0.0015"	7/8"	1"	2 1/2"	Not Rated	Color Coded	Pink	Square	———	0	5	9302K82	00000	———	0
										0.02"	-0.002" to 0.002"	7/8"	1"	2 1/2"	Not Rated	Color Coded	Yellow	Square	———	0	5	9302K83	00000	———	0
										0.025"	-0.0025" to 0.0025"	7/8"	1"	2 1/2"	Not Rated	Color Coded	White	Square	———	0	5	9302K84	00000	———	0
										0.03"	-0.003" to 0.003"	7/8"	1"	2 1/2"	Not Rated	Color Coded	Coral	Square	———	0	5	9302K85	00000	———	0


										Plastic







												4" Lg. × 4" Wd. (Shim Trade Size C)

												0.005"	-0.0002" to 0.0002"	7/8"	1"	2 1/2"	—	Color Coded	Blue	Square	———	0	20	9303K65	0000	———	0


												0.01"	-0.0005" to 0.0005"	7/8"	1"	2 1/2"	—	Color Coded	Brown	Square	———	0	10	9303K81	00000	———	0
												0.015"	-0.0015" to 0.0015"	7/8"	1"	2 1/2"	—	Color Coded	Pink	Square	———	0	5	9303K82	00000	———	0
												0.02"	-0.002" to 0.002"	7/8"	1"	2 1/2"	—	Color Coded	Yellow	Square	———	0	5	9303K83	00000	———	0
												0.025"	-0.0025" to 0.0025"	7/8"	1"	2 1/2"	—	Color Coded	White	Square	———	0	5	9303K84	00000	———	0
												0.03"	-0.003" to 0.003"	7/8"	1"	2 1/2"	—	Color Coded	Coral	Square	———	0	5	9303K85	00000	———	0
												0.06"	-0.006" to 0.006"	7/8"	1"	2 1/2"	—	Color Coded	Clear	Square	———	0	1	9303K86	0000	———	0

Slotted Shim Assortments

When you don’t know the exact shim thickness you’ll need, keep multiple slotted shim thicknesses on hand so you always have the right one. Slip these shims around existing mounting fasteners to precisely align and level components such as pumps, compressors, and gearboxes with motors, all without disassembling them. They’re also good for leveling machines on uneven surfaces. To reduce sizing errors, these shims are either labeled with their thickness so there's no need to measure or color coded by thickness to quickly spot the right size.

Shims

18-8 Stainless Steel—The choice for wet and outdoor environments, these shims resist rust. However, they’ll corrode or pit when exposed to salt water and chemicals.

Plastic—Softer than metal, these shims won't mar delicate surfaces and they will never rust.

Insertion Tools—Ease shim insertion and removal, keeping your fingers clear in the process.

	Shims										Insertion Tools
				Slot
	No. of Pieces	Thicknesses Included	For Max. Screw Size	Wd.	Dp.	Min. Hardness	Identification Type	End Shape		Each		Each
18-8 Stainless Steel







				4" Lg. × 4" Wd. (Shim Trade Size C)

				13	0.001", 0.002", 0.003", 0.004", 0.005", 0.010", 0.015", 0.020", 0.025", 0.050", 0.075", 0.100", 0.125"	1 1/8"	1 3/16"	2 19/32"	Rockwell B70	Labeled	Tab	97235K227	000000	97235K93	00000


				26	0.001", 0.002", 0.003", 0.004", 0.005", 0.010", 0.015", 0.020", 0.025", 0.050", 0.075", 0.100", 0.125"	1 1/8"	1 3/16"	2 19/32"	Rockwell B70	Labeled	Tab	97235K838	00000	97235K93	0000
				65	0.001", 0.002", 0.003", 0.004", 0.005", 0.010", 0.015", 0.020", 0.025", 0.050", 0.075", 0.125"	1 1/8"	1 3/16"	2 19/32"	Rockwell B70	Labeled	Tab	97235K228	000000	97235K93	0000




						100 mm Lg. × 100 mm Wd. (Shim Trade Size C)

						10	0.025 mm, 0.050 mm, 0.100 mm, 0.200 mm, 0.250 mm, 0.400 mm, 0.500 mm, 0.700 mm, 1.000 mm, 2.000 mm	M30	31.75 mm	50.8 mm	Not Rated	Labeled	Tab	9722K715	00000	97235K93	0000


						100	0.025 mm, 0.050 mm, 0.100 mm, 0.200 mm, 0.250 mm, 0.400 mm, 0.500 mm, 0.700 mm, 1.000 mm, 2.000 mm	M30	31.75 mm	50.8 mm	Not Rated	Labeled	Tab	9722K815	000000	97235K93	0000


						Painted Aluminum







										4" Lg. × 4" Wd. (Shim Trade Size C)

										16	0.002", 0.003", 0.004", 0.005", 0.010", 0.015", 0.020", 0.030"	7/8"	1"	2 1/2"	Brinell 32	Color Coded	Square	9302K941	00000	———	0


										80	0.002", 0.003", 0.004", 0.005", 0.010", 0.015", 0.020", 0.030"	7/8"	1"	2 1/2"	Brinell 32	Color Coded	Square	9302K945	000000	———	0
										160	0.002”, 0.003”, 0.004”, 0.005”, 0.010”, 0.015”, 0.020”, 0.030”	7/8"	1"	2 1/2"	Brinell 32	Color Coded	Square	9302K94	000000	———	0


										Plastic







														4" Lg. × 4" Wd. (Shim Trade Size C)

														18	0.002”, 0.003”, 0.004", 0.005”, 0.010”, 0.015”, 0.020”, 0.030”, 0.060”	7/8"	1"	2 1/2"	—	Color Coded	Square	9303K941	00000	———	0


														90	0.002”, 0.003”, 0.004”, 0.005”, 0.010”, 0.015”, 0.020”, 0.030”, 0.060”	7/8"	1"	2 1/2"	—	Color Coded	Square	9303K945	000000	———	0
														180	0.002”, 0.003”, 0.004”, 0.005”, 0.010”, 0.015”, 0.020”, 0.030”, 0.060”	7/8"	1"	2 1/2"	—	Color Coded	Square	9303K94	000000	———	0

Shims with Metal Case

Protect the shims from damage with the rugged metal case. Dividers sort the shims by thickness, while sturdy handles make it easy to carry them around.

18-8 Stainless Steel—The choice for wet and outdoor environments, these shims resist rust. However, they’ll corrode or pit when exposed to salt water and chemicals.

Insertion Tools—Ease shim insertion and removal, keeping your fingers clear in the process.

	Shims										Insertion Tools
				Slot
	No. of Pieces	Thicknesses Included	For Max. Screw Size	Wd.	Dp.	Min. Hardness	Identification Type	End Shape		Each		Each
18-8 Stainless Steel







				4" Lg. × 4" Wd. (Shim Trade Size C)

				130	0.001", 0.002", 0.003", 0.004", 0.005", 0.010", 0.015", 0.020", 0.025", 0.050", 0.075", 0.100", 0.125"	1 1/8"	1 3/16"	2 19/32"	Rockwell B70	Labeled	Tab	97235K84	0000000	97235K93	00000


				260	0.001", 0.002", 0.003", 0.004", 0.005", 0.010", 0.015", 0.020", 0.025", 0.050", 0.075", 0.100", 0.125"	1 1/8"	1 3/16"	2 19/32"	Rockwell B70	Labeled	Tab	97235K845	000000	97235K93	0000