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	0000000	00000	20	00000000	000000	00000000	00000


				0.002"	-0.0001" to 0.0001"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	0000000	0000	20	00000000	00000	00000000	0000
				0.003"	-0.00015" to 0.00015"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	0000000	0000	20	00000000	00000	00000000	0000
				0.004"	-0.0002" to 0.0002"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	0000000	0000	20	00000000	00000	00000000	0000
				0.005"	-0.00025" to 0.00025"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	0000000	0000	20	00000000	00000	00000000	0000
				0.008"	-0.0004" to 0.0004"	1 1/8"	1 3/16"	2 19/32"	Rockwell C42	Labeled	—	Tab	00000000	0000	20	00000000	00000	00000000	0000
				0.01"	-0.0005" to 0.0005"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	0000000	0000	20	00000000	00000	00000000	0000
				0.012"	-0.0006" to 0.0006"	1 1/8"	1 3/16"	2 19/32"	Rockwell C42	Labeled	—	Tab	00000000	0000	20	00000000	00000	00000000	0000
				0.015"	-0.00075" to 0.00075"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	0000000	0000	20	00000000	00000	00000000	0000
				0.02"	-0.001" to 0.001"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	0000000	0000	20	00000000	00000	00000000	0000
				0.025"	-0.00125" to 0.00125"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	0000000	0000	20	00000000	00000	00000000	0000


				0.03"	-0.0015" to 0.0015"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	00000000	0000	20	00000000	00000	00000000	0000
				0.04"	-0.003" to 0.003"	1 1/8"	1 3/16"	2 19/32"	Rockwell B70	Labeled	—	Tab	00000000	0000	20	00000000	00000	00000000	0000
				0.05"	-0.002" to 0.002"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	0000000	0000	20	00000000	00000	00000000	0000
				0.06"	-0.003" to 0.003"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	00000000	0000	20	00000000	000000	00000000	0000
				0.075"	-0.002" to 0.002"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	0000000	0000	20	00000000	000000	00000000	0000
				0.1"	-0.004" to 0.004"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	0000000	0000	20	00000000	000000	00000000	0000
				0.125"	-0.004" to 0.004"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	0000000	00000	20	00000000	000000	00000000	0000
				0.187"	-0.01" to 0.01"	1 1/8"	1 3/16"	2 19/32"	Rockwell B70	Labeled	—	Tab	00000000	00000	20	00000000	000000	00000000	0000
				0.25"	-0.01" to 0.01"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	00000000	00000	4	00000000	000000	00000000	0000
				0.375"	-0.01" to 0.01"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	00000000	00000	4	00000000	000000	00000000	0000


				0.5"	-0.015" to 0.015"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	00000000	00000	4	00000000	000000	00000000	0000
				0.75"	-0.06" to 0.06"	1 1/8"	1 3/16"	2 19/32"	Rockwell B70	Labeled	—	Tab	00000000	000000	20	00000000	00000000	00000000	0000
				1"	-0.07" to 0.07"	1 1/8"	1 3/16"	2 19/32"	Rockwell B70	Labeled	—	Tab	00000000	000000	20	00000000	00000000	00000000	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	00000000	0000	10	00000000	00000	00000000	0000


						0.05 mm	-0.0035 mm to 0.0035 mm	M30	31.8 mm	50.8 mm	Rockwell C40	Labeled	—	Tab	00000000	0000	10	00000000	00000	00000000	0000
						0.1 mm	-0.007 mm to 0.007 mm	M30	31.8 mm	50.8 mm	Rockwell C40	Labeled	—	Tab	00000000	0000	10	00000000	00000	00000000	0000
						0.2 mm	-0.015 mm to 0.015 mm	M30	31.8 mm	50.8 mm	Rockwell C40	Labeled	—	Tab	00000000	0000	10	00000000	00000	00000000	0000
						0.25 mm	-0.02 mm to 0.02 mm	M30	31.8 mm	50.8 mm	Rockwell C40	Labeled	—	Tab	00000000	0000	10	00000000	00000	00000000	0000
						0.4 mm	-0.032 mm to 0.032 mm	M30	31.8 mm	50.8 mm	Rockwell C40	Labeled	—	Tab	00000000	0000	10	00000000	00000	00000000	0000
						0.5 mm	-0.032 mm to 0.032 mm	M30	31.8 mm	50.8 mm	Rockwell C40	Labeled	—	Tab	00000000	0000	10	00000000	00000	00000000	0000
						0.7 mm	-0.032 mm to 0.032 mm	M30	31.8 mm	50.8 mm	Rockwell B70	Labeled	—	Tab	00000000	00000	10	00000000	00000	00000000	0000
						1 mm	-0.05 mm to 0.05 mm	M30	31.8 mm	50.8 mm	Not Rated	Labeled	—	Tab	00000000	00000	10	00000000	00000	00000000	0000
						2 mm	-0.07 mm to 0.07 mm	M30	31.8 mm	50.8 mm	Not Rated	Labeled	—	Tab	00000000	00000	10	00000000	000000	00000000	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	000000000	0000	4	000000000	00000	000000000	0000


		0.01"	-0.0005" to 0.0005"					1 1/8"	1 1/4"	2 3/4"	Rockwell C36	Labeled	—	Tab	000000000	0000	4	000000000	00000	000000000	0000
		0.015"	-0.0005" to 0.0005"					1 1/8"	1 1/4"	2 3/4"	Rockwell C36	Labeled	—	Tab	000000000	0000	4	000000000	00000	000000000	0000
		0.02"	-0.00025" to 0.00025"					1 1/8"	1 1/4"	2 3/4"	Rockwell C36	Labeled	—	Tab	000000000	0000	4	000000000	00000	000000000	0000
		0.025"	-0.0008" to 0.0008"					1 1/8"	1 1/4"	2 3/4"	Rockwell C36	Labeled	—	Tab	000000000	0000	4	000000000	00000	000000000	0000
		0.05"	-0.002" to 0.002"					1 1/8"	1 1/4"	2 3/4"	Rockwell C36	Labeled	—	Tab	000000000	0000	4	000000000	00000	000000000	0000
		0.125"	-0.003" to 0.003"					1 1/8"	1 1/4"	2 3/4"	Rockwell C36	Labeled	—	Tab	000000000	0000	4	000000000	00000	000000000	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	0000000	00000	———	0


										0.003"	-0.0003" to 0.0003"	7/8"	1"	2 1/2"	Not Rated	Color Coded	Green	Square	———	0	20	0000000	00000	———	0
										0.005"	-0.0005" to 0.0005"	7/8"	1"	2 1/2"	Not Rated	Color Coded	Blue	Square	———	0	20	0000000	00000	———	0
										0.01"	-0.001" to 0.001"	7/8"	1"	2 1/2"	Not Rated	Color Coded	Brown	Square	———	0	10	0000000	00000	———	0
										0.015"	-0.0015" to 0.0015"	7/8"	1"	2 1/2"	Not Rated	Color Coded	Pink	Square	———	0	5	0000000	00000	———	0
										0.02"	-0.002" to 0.002"	7/8"	1"	2 1/2"	Not Rated	Color Coded	Yellow	Square	———	0	5	0000000	00000	———	0
										0.025"	-0.0025" to 0.0025"	7/8"	1"	2 1/2"	Not Rated	Color Coded	White	Square	———	0	5	0000000	00000	———	0
										0.03"	-0.003" to 0.003"	7/8"	1"	2 1/2"	Not Rated	Color Coded	Coral	Square	———	0	5	0000000	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	0000000	0000	———	0


												0.01"	-0.0005" to 0.0005"	7/8"	1"	2 1/2"	—	Color Coded	Brown	Square	———	0	10	0000000	00000	———	0
												0.015"	-0.0015" to 0.0015"	7/8"	1"	2 1/2"	—	Color Coded	Pink	Square	———	0	5	0000000	00000	———	0
												0.02"	-0.002" to 0.002"	7/8"	1"	2 1/2"	—	Color Coded	Yellow	Square	———	0	5	0000000	00000	———	0
												0.025"	-0.0025" to 0.0025"	7/8"	1"	2 1/2"	—	Color Coded	White	Square	———	0	5	0000000	00000	———	0
												0.03"	-0.003" to 0.003"	7/8"	1"	2 1/2"	—	Color Coded	Coral	Square	———	0	5	0000000	00000	———	0
												0.06"	-0.006" to 0.006"	7/8"	1"	2 1/2"	—	Color Coded	Clear	Square	———	0	1	0000000	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	000000000	000000	00000000	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	000000000	00000	00000000	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	000000000	000000	00000000	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	00000000	00000	00000000	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	00000000	000000	00000000	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	00000000	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	00000000	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	0000000	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	00000000	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	00000000	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	0000000	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	00000000	0000000	00000000	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	000000000	000000	00000000	0000