0.003" Shims | McMaster-Carr

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.

Super-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.

Carbon Steel—Best for dry environments since moisture will cause these shims to rust.

Brass—With a warm, polished look, these shims are often chosen for their appearance. Similar to 18-8 stainless steel, brass is corrosion resistant enough to stand up to wet environments.

Color-Coded Plastic—These shims are color coded by thickness to quickly spot and grab the right size every time. Softer than metal, they won't mar delicate surfaces and they will never rust.

	Thk.	Thk. Tolerance	ID Tolerance	OD Tolerance	Min. Hardness	Color	Specs. Met	Pkg. Qty.		Pkg.
18-8 Stainless Steel





				1/32" ID × 7/64" OD
				0.003"	-0.0005" to 0.0005"	0" to 0.005"	-0.005" to 0.005"	Rockwell B70	—	—	25	000000000	000000



						3/64" ID × 1/8" OD
						0.003"	-0.0005" to 0.0005"	0" to 0.005"	-0.005" to 0.005"	Rockwell B70	—	—	25	000000000	00000



								1/16" ID × 5/32" OD
								0.003"	-0.0005" to 0.0005"	0" to 0.005"	-0.005" to 0.005"	Rockwell B70	—	—	25	000000000	00000



										5/64" ID × 5/32" OD
										0.003"	-0.0005" to 0.0005"	0" to 0.005"	-0.005" to 0.005"	Rockwell B70	—	—	25	000000000	00000



												3/32" ID × 13/64" OD
												0.003"	-0.0005" to 0.0005"	0" to 0.005"	-0.005" to 0.005"	Rockwell B70	—	—	25	000000000	00000



														1/8" ID × 3/16" OD
														0.003"	-0.0005" to 0.0005"	0" to 0.005"	-0.005" to 0.005"	Rockwell B70	—	—	25	000000000	00000
														0.003"	-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	5	000000000	0000



																3/16" ID × 1/4" OD
																0.003"	-0.0005" to 0.0005"	0" to 0.005"	-0.005" to 0.005"	Rockwell B70	—	—	25	000000000	00000
																0.003"	-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	5	000000000	0000



																		1/4" ID × 3/8" OD
																		0.003"	-0.0005" to 0.0005"	0" to 0.005"	-0.005" to 0.005"	Rockwell B70	—	—	25	000000000	00000
																		0.003"	-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	10	000000000	0000



																				5/16" ID × 1/2" OD
																				0.003"	-0.0005" to 0.0005"	0" to 0.005"	-0.005" to 0.005"	Rockwell B70	—	—	25	000000000	00000



																						11/32" ID × 13/16" OD
																						0.003"	-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	10	000000000	0000



																								3/8" ID × 9/16" OD
																								0.003"	-0.0005" to 0.0005"	0" to 0.005"	-0.005" to 0.005"	Rockwell B70	—	—	25	000000000	00000



																										3/8" ID × 5/8" OD
0.003"																										-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	10	000000000	0000



		1/2" ID × 3/4" OD
		0.003"	-0.0005" to 0.0005"																							0" to 0.005"	-0.005" to 0.005"	Rockwell B70	—	—	25	000000000	00000
		0.003"	-0.0005" to 0.0005"																							0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	10	000000000	0000



				5/8" ID × 1" OD
				0.003"	-0.0005" to 0.0005"																					0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	10	000000000	00000



						3/4" ID × 1 1/8" OD
						0.003"																				-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	10	000000000	00000



																										7/8" ID × 1 3/8" OD
								0.003"																		-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	5	000000000	0000



																										1" ID × 1 1/2" OD
										0.003"																-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	5	000000000	0000



																										1 1/8" ID × 1 5/8" OD
												0.003"														-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	5	000000000	0000



																										1 1/4" ID × 1 3/4" OD
																										0.003"	-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	5	000000000	0000



																										1 3/8" ID × 1 7/8" OD
																										0.003"	-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	5	000000000	0000



																										1 1/2" ID × 2 1/8" OD
																										0.003"	-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	5	000000000	00000



																			1 3/4" ID × 2 3/4" OD
																			0.003"								-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	1	000000000	0000



																				2" ID × 2 3/4" OD
																				0.003"								-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	1	000000000	0000

																				Super-Corrosion-Resistant 316 Stainless Steel





																												1/8" ID × 3/16" OD
																												0.003"	-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	5	000000000	0000



																								3/16" ID × 1/4" OD
																								0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	5	000000000	0000



																								1/4" ID × 3/8" OD
																								0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	10	000000000	0000



																								5/16" ID × 19/32" OD
																								0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	10	000000000	00000



																								11/32" ID × 13/16" OD
																								0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	10	000000000	00000



																								3/8" ID × 5/8" OD
																								0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	10	000000000	00000



																								1/2" ID × 3/4" OD
																								0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	10	000000000	00000



																								5/8" ID × 1" OD
																								0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	5	000000000	0000



																								3/4" ID × 1 1/8" OD
																								0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	5	000000000	0000



																								7/8" ID × 1 3/8" OD
																								0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	5	000000000	0000



																									1" ID × 1 1/2" OD
																									0.003"			-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B70	—	ASTM A240	5	000000000	0000

																			Carbon Steel





																														1/8" ID × 3/16" OD
																				0.003"										-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B65	—	—	5	00000000	0000



																						3/16" ID × 1/4" OD
																						0.003"	-0.0005" to 0.0005"			0" to 0.011"				-0.002" to 0.002"	Rockwell B65	—	—	5	00000000	0000



																						1/4" ID × 3/8" OD
																						0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"			Rockwell B65	—	—	10	00000000	0000



																						11/32" ID × 13/16" OD
																						0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"			Rockwell B65	—	—	10	00000000	0000



																						3/8" ID × 5/8" OD
																						0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"			Rockwell B65	—	—	10	00000000	0000



																						1/2" ID × 3/4" OD
																						0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"			Rockwell B65	—	—	10	00000000	0000



																						5/8" ID × 1" OD
																						0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"			Rockwell B65	—	—	10	00000000	0000



																						3/4" ID × 1 1/8" OD
																						0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"			Rockwell B65	—	—	10	00000000	00000



																						7/8" ID × 1 3/8" OD
																						0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"			Rockwell B65	—	—	10	00000000	00000



																						1" ID × 1 1/2" OD
																						0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"			Rockwell B65	—	—	10	00000000	00000



																						1 1/8" ID × 1 5/8" OD
																						0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"			Rockwell B65	—	—	10	00000000	00000



																							1 1/4" ID × 1 3/4" OD
																							0.003"			-0.0005" to 0.0005"	0" to 0.011"			-0.002" to 0.002"	Rockwell B65	—	—	10	00000000	00000



																										1 3/8" ID × 1 7/8" OD
																										0.003"	-0.0005" to 0.0005"			0" to 0.011"	-0.002" to 0.002"	Rockwell B65	—	—	10	00000000	00000



																								1 1/2" ID × 2 1/8" OD
																								0.003"						-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B65	—	—	10	00000000	00000



																								1 3/4" ID × 2 3/4" OD
																								0.003"						-0.0005" to 0.0005"	0" to 0.011"	-0.002" to 0.002"	Rockwell B65	—	—	10	00000000	00000



																								2" ID × 2 3/4" OD
																								0.003"	-0.0005" to 0.0005"					0" to 0.011"	-0.002" to 0.002"	Rockwell B65	—	—	10	00000000	00000

		Brass





					3/32" ID × 13/64" OD
					0.003"																				-0.0005" to 0.0005"			0" to 0.005"	-0.005" to 0.005"	Rockwell B70	—	—	10	000000000	0000



						1/8" ID × 3/16" OD
						0.003"																						-0.0005" to 0.0005"	0" to 0.005"	-0.005" to 0.005"	Rockwell B70	—	—	10	000000000	0000



																												3/16" ID × 1/4" OD
								0.003"																				-0.0005" to 0.0005"	0" to 0.005"	-0.005" to 0.005"	Rockwell B70	—	—	10	000000000	0000



																												1/4" ID × 3/8" OD
										0.003"																		-0.0005" to 0.0005"	0" to 0.005"	-0.005" to 0.005"	Rockwell B70	—	—	10	000000000	00000



																												5/16" ID × 1/2" OD
												0.003"	-0.0005" to 0.0005"															0" to 0.005"	-0.005" to 0.005"	Rockwell B70	—	—	10	000000000	00000



														3/8" ID × 9/16" OD
														0.003"														-0.0005" to 0.0005"	0" to 0.005"	-0.005" to 0.005"	Rockwell B70	—	—	10	000000000	00000



																												1/2" ID × 3/4" OD
																0.003"												-0.0005" to 0.0005"	0" to 0.005"	-0.005" to 0.005"	Rockwell B70	—	—	10	000000000	00000

																Color-Coded Plastic





																												3/8" ID × 5/8" OD
																												0.003"	-0.00015" to 0.00015"	0" to 0.015"	-0.005" to 0.005"	—	Green	—	10	000000000	00000



																												1/2" ID × 3/4" OD
																												0.003"	-0.00015" to 0.00015"	0" to 0.015"	-0.005" to 0.005"	—	Green	—	10	000000000	00000



																														5/8" ID × 1" OD
																										0.003"	-0.00015" to 0.00015"			0" to 0.015"	-0.005" to 0.005"	—	Green	—	10	000000000	00000



	3/4" ID × 1 1/8" OD
	0.003"																				-0.00015" to 0.00015"					0" to 0.015"	-0.005" to 0.005"			—	Green	—	10	000000000	00000



																										1" ID × 1 1/2" OD
		0.003"																								-0.00015" to 0.00015"	0" to 0.015"			-0.005" to 0.005"	—	Green	—	10	000000000	00000



				1 1/4" ID × 1 3/4" OD
				0.003"																						-0.00015" to 0.00015"	0" to 0.015"			-0.005" to 0.005"	—	Green	—	10	000000000	00000



					1 1/2" ID × 2 1/8" OD
					0.003"																					-0.00015" to 0.00015"	0" to 0.015"			-0.005" to 0.005"	—	Green	—	10	000000000	00000



																									1 3/4" ID × 2 3/4" OD
						0.003"																			-0.00015" to 0.00015"		0" to 0.015"			-0.005" to 0.005"	—	Green	—	10	000000000	00000



																									2" ID × 2 3/4" OD
								0.003"																	-0.00015" to 0.00015"		0" to 0.015"			-0.005" to 0.005"	—	Green	—	10	000000000	00000

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.

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.

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.

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

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





				1" Lg. × 1" Wd. (Shim Trade Size AAA)
				0.003"	-0.00015" to 0.00015"	1/4"	5/16"	5/8"	Rockwell C42	Labeled	—	Tab	1	000000000	00000	0000000	00000



						1 1/2" Lg. × 1 1/2" Wd. (Shim Trade Size AA)
						0.003"	-0.00015" to 0.00015"	3/8"	7/16"	61/64"	Rockwell B85	Labeled	—	Tab	1	000000000	0000	0000000	0000



								2" Lg. × 2" Wd. (Shim Trade Size A)
								0.003"	-0.00015" to 0.00015"	1/2"	9/16"	1 9/32"	Rockwell B85	Labeled	—	Tab	1	0000000	0000	000000000	0000



										2 1/2" Lg. × 2 1/2" Wd. (Shim Trade Size BB)
										0.003"	-0.00015" to 0.00015"	5/8"	11/16"	1 19/32"	Rockwell B85	Labeled	—	Tab	1	000000000	0000	000000000	0000



												3" Lg. × 3" Wd. (Shim Trade Size B)
												0.003"	-0.00015" to 0.00015"	3/4"	13/16"	1 29/32"	Rockwell B85	Labeled	—	Tab	1	0000000	0000	00000000	0000



														4" Lg. × 4" Wd. (Shim Trade Size C)
														0.003"	-0.00015" to 0.00015"	1 1/8"	1 3/16"	2 19/32"	Rockwell B85	Labeled	—	Tab	1	0000000	0000	00000000	0000



																5" Lg. × 5" Wd. (Shim Trade Size D)
																0.003"	-0.00015" to 0.00015"	1 1/2"	1 9/16"	3 9/32"	Rockwell B85	Labeled	—	Tab	1	0000000	0000	000000000	0000



																		6" Lg. × 5" Wd. (Shim Trade Size DD)
																		0.003"	-0.00015" to 0.00015"	1 1/2"	1 9/16"	4 1/2"	Rockwell C42	Labeled	—	Tab	1	000000000	0000	———	0



																				6" Lg. × 6" Wd. (Shim Trade Size E)
																				0.003"	-0.00015" to 0.00015"	1 7/8"	1 15/16"	4"	Rockwell B85	Labeled	—	Tab	1	000000000	0000	00000000	0000



																						6" Lg. × 6" Wd. (Shim Trade Size G)
																						0.003"	-0.00015" to 0.00015"	2 1/4"	2 5/16"	4 3/16"	Rockwell B85	Labeled	—	Tab	1	000000000	0000	00000000	0000



																								8" Lg. × 8" Wd. (Shim Trade Size H)
																								0.003"	-0.00015" to 0.00015"	2 1/4"	2 5/16"	5 3/16"	Rockwell B85	Labeled	—	Tab	1	000000000	0000	000000000	0000

																								Painted Aluminum





1 1/2" Lg. × 1 1/2" Wd. (Shim Trade Size AA)
0.003"																												-0.0003" to 0.0003"	5/16"	3/8"	15/16"	Not Rated	Color Coded	Green	Square	20	00000000	0000	———	0



		2" Lg. × 2" Wd. (Shim Trade Size A)
		0.003"	-0.0003" to 0.0003"																									3/8"	7/16"	1 7/32"	Not Rated	Color Coded	Green	Square	20	0000000	0000	———	0



				3" Lg. × 3" Wd. (Shim Trade Size B)
				0.003"																								-0.0003" to 0.0003"	1/2"	9/16"	1 25/32"	Not Rated	Color Coded	Green	Square	20	0000000	0000	———	0



																												4" Lg. × 4" Wd. (Shim Trade Size C)
						0.003"																						-0.0003" to 0.0003"	7/8"	1"	2 1/2"	Not Rated	Color Coded	Green	Square	20	0000000	00000	———	0

Shims for Ball Bearing Outer Rings

Boost bearing efficiency and lifespan. Often used on motor shafts, these shims evenly distribute the load between multiple bearings by creating space between their outer rings. This prevents excessive pressure on any single bearing, maintaining proper alignment for smooth operation and reduced wear.

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.

Brass—With a warm, polished look, these shims are often chosen for their appearance. Similar to 18-8 stainless steel, brass is corrosion resistant enough to stand up to wet environments.

	For Bearing
	Trade No.	ID	OD	ID	ID Tolerance	OD	OD Tolerance	Min. Hardness	Thk.	Pkg. Qty.		Pkg.
18-8 Stainless Steel


		R0	3/64"	5/32"	0.088"	0" to 0.005"	0.153"	-0.005" to 0"	Rockwell B70	0.003"	25	000000000	000000
		R1	0.055"	3/16"	0.123"	0" to 0.005"	0.178"	-0.005" to 0"	Rockwell B70	0.003"	25	000000000	00000
		R1-4, R144	5/64", 1/8"	1/4"	0.167"	0" to 0.005"	0.248"	-0.005" to 0"	Rockwell B70	0.003"	25	000000000	00000
		R1-5, R2-5	3/32", 1/8"	5/16"	0.206"	0" to 0.005"	0.31"	-0.005" to 0"	Rockwell B70	0.003"	25	000000000	00000
		R2, R166	1/8", 3/16"	3/8"	0.253"	0" to 0.005"	0.373"	-0.005" to 0"	Rockwell B70	0.003"	25	000000000	00000
		R3, R188	3/16", 1/4"	1/2"	0.378"	0" to 0.005"	0.498"	-0.005" to 0"	Rockwell B70	0.003"	25	000000000	00000
		R4	1/4"	5/8"	0.503"	0" to 0.005"	0.623"	-0.005" to 0"	Rockwell B70	0.003"	25	000000000	00000
		R6	3/8"	7/8"	0.687"	0" to 0.005"	0.873"	-0.005" to 0"	Rockwell B70	0.003"	25	000000000	00000

		Brass


				R1	0.055"	3/16"	0.123"	0" to 0.005"	0.178"	-0.005" to 0"	Rockwell B70	0.003"	10	000000000	0000
				R1-4, R144	5/64", 1/8"	1/4"	0.167"	0" to 0.005"	0.248"	-0.005" to 0"	Rockwell B70	0.003"	10	000000000	0000
				R1-5, R2-5	3/32", 1/8"	5/16"	0.206"	0" to 0.005"	0.31"	-0.005" to 0"	Rockwell B70	0.003"	10	000000000	0000
				R2, R166	1/8", 3/16"	3/8"	0.253"	0" to 0.005"	0.373"	-0.005" to 0"	Rockwell B70	0.003"	10	000000000	0000
				R3, R188	3/16", 1/4"	1/2"	0.378"	0" to 0.005"	0.498"	-0.005" to 0"	Rockwell B70	0.003"	10	000000000	0000
				R4	1/4"	5/8"	0.503"	0" to 0.005"	0.623"	-0.005" to 0"	Rockwell B70	0.003"	10	000000000	0000

Shims for Keyed Shafts

With a notch or tab, these shims fit snugly on keyed shafts to align and space gears, sprockets, and bearings. On keyed arbors, they’re often used to accurately space saw blades and cutters.

Notch

Fit these shims around keyed shafts and arbors that have a key inserted. They’re often referred to as arbor spacers.

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.

Carbon Steel—Best for dry environments since moisture will cause these shims to rust.

							Notch
	Thk.	Thk. Tolerance	ID	ID Tolerance	OD	OD Tolerance	Wd.	Dp.	Min. Hardness	Pkg. Qty.		Pkg.
18-8 Stainless Steel





				For 1/2" Diameter Shafts
				0.003"	-0.0003" to 0.0003"	1/2"	0" to 0.011"	3/4"	-0.002" to 0.002"	1/8"	3/64"	Rockwell B80	10	000000000	000000



						For 3/4" Diameter Shafts
						0.003"	-0.0003" to 0.0003"	3/4"	0" to 0.011"	1 1/8"	-0.002" to 0.002"	3/16"	5/64"	Rockwell B80	10	000000000	0000



								For 7/8" Diameter Shafts
								0.003"	-0.0003" to 0.0003"	7/8"	0" to 0.011"	1 3/8"	-0.002" to 0.002"	3/16"	5/64"	Rockwell B80	10	000000000	00000



										For 1" Diameter Shafts
										0.003"	-0.0003" to 0.0003"	1"	0" to 0.011"	1 1/2"	-0.002" to 0.002"	1/4"	3/32"	Rockwell B80	10	000000000	0000



												For 1 1/4" Diameter Shafts
												0.003"	-0.0003" to 0.0003"	1 1/4"	0" to 0.011"	1 3/4"	-0.002" to 0.002"	5/16"	1/8"	Rockwell B80	5	000000000	0000



														For 1 1/2" Diameter Shafts
														0.003"	-0.0003" to 0.0003"	1 1/2"	0" to 0.011"	2 1/8"	-0.002" to 0.002"	3/8"	5/32"	Rockwell B80	5	000000000	0000



																For 2" Diameter Shafts
																0.003"	-0.0003" to 0.0003"	2"	0" to 0.011"	2 3/4"	-0.002" to 0.002"	1/2"	3/16"	Rockwell B80	1	000000000	0000

																Carbon Steel





																				For 5/8" Diameter Shafts
																				0.003"	-0.0003" to 0.0003"	5/8"	0" to 0.011"	1"	-0.002" to 0.002"	3/16"	1/16"	Rockwell B84	10	00000000	0000



																						For 3/4" Diameter Shafts
																						0.003"	-0.0003" to 0.0003"	3/4"	0" to 0.011"	1 1/8"	-0.002" to 0.002"	3/16"	5/64"	Rockwell B84	10	00000000	00000



																								For 7/8" Diameter Shafts
																								0.003"	-0.0003" to 0.0003"	7/8"	0" to 0.011"	1 3/8"	-0.002" to 0.002"	3/16"	5/64"	Rockwell B84	10	00000000	00000



																										For 1" Diameter Shafts
																										0.003"	-0.0003" to 0.0003"	1"	0" to 0.011"	1 1/2"	-0.002" to 0.002"	1/4"	3/32"	Rockwell B84	10	00000000	00000



For 1 1/4" Diameter Shafts
0.003"																												-0.0003" to 0.0003"	1 1/4"	0" to 0.011"	1 3/4"	-0.002" to 0.002"	5/16"	1/8"	Rockwell B84	10	00000000	00000



		For 1 1/2" Diameter Shafts
		0.003"	-0.0003" to 0.0003"																									1 1/2"	0" to 0.011"	2 1/8"	-0.002" to 0.002"	3/8"	5/32"	Rockwell B84	10	00000000	00000



				For 2" Diameter Shafts
				0.003"																								-0.0003" to 0.0003"	2"	0" to 0.011"	2 3/4"	-0.002" to 0.002"	1/2"	3/16"	Rockwell B84	5	00000000	00000

Shims for D-Profile Shafts

With a partially flat inside surface, these shims won’t spin out of position to precisely align and space components on D-profile shafts and arbors.

Carbon Steel—Best for dry environments since moisture will cause these shims to rust.

	ID Tolerance	OD	OD Tolerance	Flat Wd.	Min. Hardness	Pkg. Qty.		Pkg.
Carbon Steel





	For 3/8" Diameter Shafts
	0.003"	-0.0003" to 0.0003"	0.385"	-0.01" to 0.01"	5/8"	-0.01" to 0.01"	0.173"	Rockwell B90	5	000000000	000000



			For 1/2" Diameter Shafts
			0.003"	-0.0003" to 0.0003"	0.51"	-0.01" to 0.01"	3/4"	-0.01" to 0.01"	0.235"	Rockwell B90	5	000000000	00000



					For 5/8" Diameter Shafts
					0.003"	-0.0003" to 0.0003"	0.635"	-0.01" to 0.01"	1"	-0.01" to 0.01"	0.298"	Rockwell B90	5	000000000	00000



							For 3/4" Diameter Shafts
							0.003"	-0.0003" to 0.0003"	0.76"	-0.01" to 0.01"	1 1/8"	-0.01" to 0.01"	0.36"	Rockwell B90	5	000000000	00000



									For 1" Diameter Shafts
									0.003"	-0.0003" to 0.0003"	1.01"	-0.01" to 0.01"	1 1/2"	-0.01" to 0.01"	0.485"	Rockwell B90	5	000000000	00000



											For 1 1/4" Diameter Shafts
											0.003"	-0.0003" to 0.0003"	1.26"	-0.01" to 0.01"	1 3/4"	-0.01" to 0.01"	0.61"	Rockwell B90	5	000000000	00000

Made-to-Order Shims

Image of Product. Front orientation. Shims. Sold Individually, Made-to-Order.

If you need a unique shim shape or size, we’ll precision cut it for you. With thickness tolerances as fine as a strand of hair, these shims precisely align, space, and level components on shafts, arbors, and machinery.

Send your dimensioned DWG, DXF, IGES, or STEP file to sales@mcmaster.com. Please leave at least _1/8" wall between shim edge and holes. Minimum hole size is _1/4". Shims should be no smaller than 1" × 1" square or 1" OD. Maximum shim dimension is the largest overall length, width, or diameter of your custom shim.

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.

Super-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.

Carbon Steel—Best for dry environments since moisture will cause these shims to rust.

Brass—With a warm, polished look, these shims are often chosen for their appearance. Similar to 18-8 stainless steel, brass is corrosion resistant enough to stand up to wet environments.

Material Certificate—Shims include a report with a traceable lot number.

						2" × 2" Maximum Shim Size			5" × 5" Maximum Shim Size			7" × 7" Maximum Shim Size			11" × 11" Maximum Shim Size			23" × 23" Maximum Shim Size
	Thk.	Thk. Tolerance	Min. Hardness	Certificate Type	Specs. Met	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
18-8 Stainless Steel


		0.003"	-0.00015" to 0.00015"	Rockwell C42	Material Certificate	ASTM A240	16	000000000	000000	4	000000000	000000	9	000000000	000000	4	000000000	000000	1	000000000	000000

		Super-Corrosion-Resistant 316 Stainless Steel


				0.003"	-0.00015" to 0.00015"	Not Rated	Material Certificate	ASTM A240, Fed. Spec. QQ-S-766	16	000000000	00000	4	000000000	00000	9	000000000	000000	4	000000000	000000	1	000000000	000000

				Carbon Steel


						0.003"	-0.00015" to 0.00015"	Rockwell B90	Material Certificate	ASTM A109, Fed. Spec. QQ-S-698	16	000000000	00000	4	000000000	00000	9	000000000	000000	4	000000000	000000	1	000000000	000000

						Brass


								0.003"	-0.00015" to 0.00015"	Rockwell B60	Material Certificate	ASTM B36, Fed. Spec. QQ-B-613	16	000000000	00000	4	000000000	00000	9	000000000	000000	4	000000000	000000	1	000000000	000000

Shim Stock

Cut into custom shapes to create shims that suit your needs. With thickness tolerances as fine as a strand of hair, the shims will precisely align, space, and level components on dies, presses, and machinery.

Sheets—Shim stock comes in sheets that are flat packed.

18-8 Stainless Steel—The choice for wet and outdoor areas because it resists rust. However, it will corrode or pit when exposed to salt water and chemicals.

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

High-Strength 17-7 PH Stainless Steel—Similar in strength to steel, it won’t rust in wet and outdoor areas but can’t withstand harsh chemicals like 316 stainless steel.

Extreme-Strength 17-4 PH Stainless Steel—Stronger than 17-7 PH stainless steel, it won’t rust in wet and outdoor areas but can’t withstand harsh chemicals like 316 stainless steel.

Carbon Steel—Best for dry areas since moisture will cause it to rust.

Stress-Resistant Spring Steel—Harder and holds its shape better than carbon steel. Use it for high-stress applications, such as leveling heavy machinery. It's best for dry areas since moisture will cause it to rust.

Aluminum and Painted Aluminum—An alternative to stainless steel for rust resistance but less hard so it may not retain its shape. One-third the weight of steel, it's often used in robotics and automation.

Brass—Picked for its warm, polished look. Similar to 18-8 stainless steel, it resists rusting in wet and outdoor areas.

Copper—A good conductor of heat, it’s often used to install heat sinks. As our softest metal, it prevents component damage but may not retain its shape as well as other metals.

Nickel—Often used in marine and water treatment applications, it won't break down from salt water and alkalis. It's also a good conductor of heat.

Ultra-Chemical-Resistant PTFE—The most chemical-resistant shim stock we offer, it stands up to the widest range of harsh acids, bases, solvents, and corrosive cleaners, even at temperatures up to 500° F. It also won't mar delicate surfaces.

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

Temper Rating—Choose half hard to create shims that you’ll need to bend or shape. Opt for full hard to make stronger shims that will maintain their shape under loads.

	Thk. Tolerance	Color	Type	Certificate Form	Specs. Met	Form	Pkg. Qty.		Pkg.
18-8 Stainless Steel





		6" Wide × 25" Long
		0.003"	-0.00015" to 0.00015"	Full Hard	—	Material Certificate	Paper	ASTM A666, SAE AMS5906, SAE AMS5913	Sheet	1	0000000	000000



				6" Wide × 50" Long
				0.003"	-0.0002" to 0.0002"	Full Hard	—	Material Certificate	Paper	ASTM A666, SAE AMS5906, SAE AMS5913	Roll	1	0000000	00000
				0.003"	-0.00015" to 0.00015"	1/2 Hard	—	Material Certificate	Paper	ASTM A666	Roll	1	0000000	00000



						6" Wide × 100" Long
						0.003"	-0.0002" to 0.0002"	Full Hard	—	Material Certificate	Paper	ASTM A666, SAE AMS5906, SAE AMS5913	Roll	1	00000000	00000
						0.003"	-0.00015" to 0.00015"	1/2 Hard	—	Material Certificate	Paper	ASTM A666	Roll	1	00000000	00000



								8" Wide × 12" Long
								0.003"	-0.00015" to 0.00015"	1/2 Hard	—	Material Certificate	Paper	ASTM A666	Sheet	1	00000000	0000
								0.003"	-0.00015" to 0.00015"	Full Hard	—	Material Certificate	Paper	ASTM A666, SAE AMS5906, SAE AMS5913	Sheet	1	00000000	00000



										10" Wide × 12" Long
										0.003"	-0.00015" to 0.00015"	Full Hard	—	Material Certificate	Paper	ASTM A666, SAE AMS5906	Sheet	1	00000000	00000



												12" Wide × 24" Long
												0.003"	-0.00015" to 0.00015"	Full Hard	—	Material Certificate	Paper	ASTM A666, SAE AMS5906	Sheet	1	00000000	00000



														12" Wide × 50" Long
														0.003"	-0.0002" to 0.0002"	Full Hard	—	Material Certificate	Paper	ASTM A666, SAE AMS5906, SAE AMS5913	Roll	1	0000000	00000



																12" Wide × 100" Long
																0.003"	-0.0002" to 0.0002"	Full Hard	—	Material Certificate	Paper	ASTM A666, SAE AMS5906, SAE AMS5913	Roll	1	0000000	00000



																		12" Wide × 120" Long
																		0.003"	-0.00015" to 0.00015"	Full Hard	—	Material Certificate	Paper	ASTM A666, SAE AMS5906	Roll	1	00000000	000000



																				24" Wide × 24" Long
																				0.003"	-0.00015" to 0.00015"	Full Hard	—	Material Certificate	Paper	ASTM A666, SAE AMS5906, SAE AMS5913	Sheet	1	00000000	00000



																						24" Wide × 50" Long
																						0.003"	-0.0002" to 0.0002"	Full Hard	—	Material Certificate	Paper	ASTM A666, SAE AMS5906, SAE AMS5913	Roll	1	0000000	00000

																						Super-Corrosion-Resistant 316 Stainless Steel





	6" Wide × 12" Long
	0.003"																							-0.00015" to 0.00015"	—	—	Material Certificate	Paper	ASTM A240, SAE AMS5507, SAE AMS5524	Sheet	1	00000000	0000



																								6" Wide × 25" Long
		0.003"																						-0.00015" to 0.00015"	—	—	Material Certificate	Paper	ASTM A240, ASTM A666, SAE AMS5507, SAE AMS5524	Sheet	1	00000000	00000



																								6" Wide × 50" Long
																								0.003"	-0.00015" to 0.00015"	—	—	Material Certificate	Paper	ASTM A240, SAE AMS5507, SAE AMS5524	Roll	1	00000000	00000



																								6" Wide × 100" Long
																								0.003"	-0.00015" to 0.00015"	—	—	Material Certificate	Paper	ASTM A240, SAE AMS5507, SAE AMS5524	Roll	1	00000000	00000



																								8" Wide × 12" Long
																								0.003"	-0.00015" to 0.00015"	—	—	Material Certificate	Paper	ASTM A240, SAE AMS5507, SAE AMS5524	Sheet	1	0000000	00000



									10" Wide × 12" Long
									0.003"																-0.00015" to 0.00015"	—	—	Material Certificate	Paper	ASTM A240, ASTM A666, SAE AMS5507, SAE AMS5524	Sheet	1	00000000	00000



										12" Wide × 12" Long
										0.003"																-0.00015" to 0.00015"	—	—	Material Certificate	Paper	ASTM A240, SAE AMS5507, SAE AMS5524	Sheet	1	00000000	00000



																										12" Wide × 24" Long
												0.003"														-0.00015" to 0.00015"	—	—	Material Certificate	Paper	ASTM A240, SAE AMS5507, SAE AMS5524	Sheet	1	00000000	00000



																										12" Wide × 50" Long
														0.003"												-0.00015" to 0.00015"	—	—	Material Certificate	Paper	ASTM A240, SAE AMS5507, SAE AMS5524	Roll	1	00000000	00000



																										12" Wide × 100" Long
																0.003"										-0.00015" to 0.00015"	—	—	Material Certificate	Paper	ASTM A240, SAE AMS5507, SAE AMS5524	Roll	1	00000000	000000



																										12" Wide × 120" Long
																		0.003"								-0.00015" to 0.00015"	—	—	Material Certificate	Paper	ASTM A240, ASTM A666, SAE AMS5507, SAE AMS5524	Roll	1	00000000	000000



																										24" Wide × 24" Long
																				0.003"						-0.00015" to 0.00015"	—	—	Material Certificate	Paper	ASTM A240, ASTM A666, SAE AMS5507, SAE AMS5524	Sheet	1	0000000	00000



																										24" Wide × 50" Long
																										0.003"	-0.00015" to 0.00015"	—	—	Material Certificate	Paper	ASTM A240, SAE AMS5507, SAE AMS5524	Roll	1	00000000	000000



																						24" Wide × 100" Long
																						0.003"	-0.00015" to 0.00015"			—	—	Material Certificate	Paper	ASTM A240, SAE AMS5507, SAE AMS5524	Roll	1	00000000	000000

	High-Strength 17-7 PH Stainless Steel





			6" Wide × 50" Long
			0.003"																				-0.00015" to 0.00015"			Full Hard	—	Material Certificate	Paper	ASTM A693	Roll	1	0000000	00000

			Extreme-Strength 17-4 PH Stainless Steel





																										4" Wide × 60" Long
																										0.003"	-0.00015" to 0.00015"	—	—	Material Certificate	Paper	ASTM A693	Roll	1	0000000	000000

						Carbon Steel





								6" Wide × 12" Long
								0.003"																			-0.0003" to 0.0003"	Full Hard	—	Material Certificate	Paper	ASTM A109	Sheet	1	00000000	0000



									6" Wide × 25" Long
									0.003"																-0.0003" to 0.0003"			Full Hard	—	Material Certificate	Paper	ASTM A109	Sheet	1	00000000	0000



																												6" Wide × 50" Long
										0.003"																		-0.0003" to 0.0003"	Full Hard	—	Material Certificate	Paper	—	Roll	1	00000000	0000



												6" Wide × 60" Long
												0.003"																-0.0003" to 0.0003"	Full Hard	—	Material Certificate	Paper	—	Roll	1	00000000	00000



																												6" Wide × 100" Long
														0.003"	-0.0003" to 0.0003"													Full Hard	—	Material Certificate	Paper	—	Roll	1	00000000	00000



																6" Wide × 180" Long
																0.003"												-0.0003" to 0.0003"	Full Hard	—	Material Certificate	Paper	—	Roll	1	00000000	00000



																		8" Wide × 12" Long
																		0.003"										-0.0003" to 0.0003"	Full Hard	—	Material Certificate	Paper	ASTM A109	Sheet	5	00000000	00000



12" Wide × 120" Long
0.003"																												-0.0003" to 0.0003"	Full Hard	—	Material Certificate	Paper	—	Roll	1	00000000	00000



																				24" Wide × 24" Long
																				0.003"	-0.0003" to 0.0003"							Full Hard	—	Material Certificate	Paper	ASTM A109	Sheet	1	00000000	00000



																				24" Wide × 50" Long
		0.003"																		-0.0003" to 0.0003"	Full Hard							—	Material Certificate	Paper	ASTM A109	Sheet	1	00000000	00000

		Stress-Resistant Spring Steel





																						3" Wide × 50" Long
				0.003"																		-0.0003" to 0.0003"						Full Hard	—	Material Certificate	Paper	ASTM A682, ASTM A684, MIL-S-7947	Roll	1	0000000	00000

				Aluminum





							6" Wide × 50" Long
							0.003"																-0.00015" to 0.00015"					Full Hard	—	Material Certificate	Paper	ASTM B209	Roll	1	0000000	00000



																												6" Wide × 100" Long
																												0.003"	-0.00015" to 0.00015"	Full Hard	—	Material Certificate	Paper	ASTM B209	Roll	1	0000000	00000

								Painted Aluminum





									6" Wide × 24" Long
									0.003"																		-0.0003" to 0.0003"		1/2 Hard to Full Hard	Green	Material Certificate	Paper	—	Sheet	1	0000000	0000



																									12" Wide × 24" Long
										0.003"															-0.0003" to 0.0003"				1/2 Hard to Full Hard	Green	Material Certificate	Paper	—	Sheet	1	0000000	00000

										Brass





																									6" Wide × 50" Long
																									0.003"				-0.00003" to 0.00003"	1/2 Hard	—	Material Certificate	Paper	ASTM B36	Roll	1	00000000	00000



																									6" Wide × 60" Long
																0.003"									-0.0003" to 0.0003"				1/2 Hard	—	Material Certificate	Paper	ASTM B36	Roll	1	0000000	00000



																									6" Wide × 100" Long
0.003"																		-0.0003" to 0.0003"							1/2 Hard				—	Material Certificate	Paper	ASTM B36	Roll	1	0000000	00000



																		8" Wide × 12" Long
	0.003"																	-0.0003" to 0.0003"	1/2 Hard						—				Material Certificate	Paper	ASTM B36	Sheet	1	00000000	0000



																		12" Wide × 120" Long
																		0.003"	-0.0003" to 0.0003"						1/2 Hard				—	Material Certificate	Paper	ASTM B36	Roll	1	0000000	00000

		Copper





																				6" Wide × 50" Long
																				0.003"					-0.0003" to 0.0003"				—	—	Material Certificate	Paper	ASTM B152	Roll	1	0000000	00000



																				6" Wide × 100" Long
																				0.003"	-0.0003" to 0.0003"				—				—	Material Certificate	Paper	ASTM B152	Roll	1	0000000	00000



																					8" Wide × 12" Long
							0.003"														-0.0003" to 0.0003"				—				—	Material Certificate	Paper	ASTM B152	Sheet	1	00000000	00000

							Nickel





																							6" Wide × 25" Long
																							0.003"		-0.00015" to 0.00015"				—	—	Material Certificate	Paper	ASTM B160, ASTM B162, ASTM B163	Roll	1	0000000	00000



																								6" Wide × 50" Long
																								0.003"					-0.00015" to 0.00015"	—	—	Material Certificate	Paper	ASTM B160, ASTM B162, ASTM B163	Roll	1	0000000	000000

									Ultra-Chemical-Resistant PTFE





										6" Wide × 50" Long
										0.003"																			-0.0003" to 0.0003"	—	White	—	—	ASTM D3308, MIL-P-22241	Roll	1	00000000	00000



												6" Wide × 100" Long
												0.003"	-0.0003" to 0.0003"														—		White	—	—	ASTM D3308, MIL-P-22241	Roll	1	00000000	00000



														8" Wide × 12" Long
														0.003"	-0.0003" to 0.0003"												—		White	—	—	ASTM D3308, MIL-P-22241	Sheet	1	0000000	0000



12" Wide × 24" Long
0.003"																-0.0003" to 0.0003"											—		White	—	—	ASTM D3308, MIL-P-22241	Roll	1	0000000	00000



																20" Wide × 50" Long
	0.003"															-0.0003" to 0.0003"	—										White		—	—	ASTM D3308, MIL-P-22241	Roll	1	0000000	00000

	Plastic





																	5" Wide × 20" Long
																	0.003"										-0.0002" to 0.0002"		—	Green	—	—	—	Sheet	1	0000000	0000



																											10" Wide × 20" Long
																		0.003"									-0.0002" to 0.0002"		—	Green	—	—	—	Sheet	1	0000000	0000



																		12" Wide × 24" Long
																		0.003"	-0.0002" to 0.0002"								—		Green	—	—	—	Sheet	1	00000000	00000



																			20" Wide × 20" Long
																			0.003"								-0.0002" to 0.0002"		—	Green	—	—	—	Sheet	1	0000000	00000



																				20" Wide × 50" Long
																				0.003"							-0.0002" to 0.0002"		—	Green	—	—	—	Sheet	1	00000000	00000
								0.003"												-0.0002" to 0.0002"							—		Green	—	—	—	Roll	1	0000000	00000

Adhesive-Back Shim Stock

Stick with confidence—a durable adhesive keeps this shim stock from sliding out of place. Cut the shim stock into custom shapes to create shims that suit your needs. With thickness tolerances as fine as a strand of hair, the shims will precisely align, space, and level components on dies, presses, and machinery.

Sheets—Shim stock comes in sheets that are flat packed.

18-8 Stainless Steel—The choice for wet and outdoor areas because it resists rust. However, it will corrode or pit when exposed to salt water and chemicals.

Aluminum—An alternative to stainless steel for rust resistance but less hard so it may not retain its shape. One-third the weight of steel, it's often used in robotics and automation.

Brass—Picked for its warm, polished look. Similar to 18-8 stainless steel, it resists rusting in wet and outdoor areas.

Temper Rating—Choose half hard to create shims that you’ll need to bend or shape. Opt for full hard to make stronger shims that will maintain their shape under loads.

Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.

							Certificate
	Thk.	Thk. Tolerance	Material Thk.	Adhesive Thk.	Adhesive Type	Temper Rating	Type	Form	Specs. Met	Form		Each
18-8 Stainless Steel





				8" Wide × 12" Long
				0.003"	-0.00005" to 0.00005"	0.001"	0.002"	Acrylic	Full Hard	Material Certificate	Digital	ASTM A666	Sheet	0000000	000000

				Aluminum





								6" Wide × 12" Long
								0.003"	-0.0001" to 0.0001"	0.001"	0.002"	Acrylic	—	Material Certificate	Digital	ASTM B479	Sheet	00000000	00000

								Brass





												8" Wide × 12" Long
												0.003"	-0.0001" to 0.0001"	0.001"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	00000000	00000