ASTM A109 Shims | McMaster-Carr

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1008-1010 Low-Carbon Steel

System of Measurement

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Material Certificate with Traceable Lot Number

Material Certificate with Traceable Lot Number and Test Report

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EAR99

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Rockwell B90

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170 Products

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.

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.

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

						Certificate
	Thk.	Thk. Tolerance	Temper Rating	Specs. Met	Form	Type	Form	Pkg. Qty.		Pkg.
Carbon Steel







				6" Wide × 12" Long

				0.001"	-0.0001" to 0.0001"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K177	00000


				0.002"	-0.0002" to 0.0002"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K138	0000
				0.003"	-0.0003" to 0.0003"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K139	0000
				0.004"	-0.0005" to 0.0005"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K141	0000
				0.005"	-0.0005" to 0.0005"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K142	0000
				0.015"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K143	0000
				0.02"	-0.001" to 0.001"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K144	0000
				0.025"	-0.001" to 0.001"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K145	0000
				0.031"	-0.0015" to 0.0015"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K146	00000




						6" Wide × 25" Long

						0.001"	-0.0001" to 0.0001"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K152	0000


						0.002"	-0.0002" to 0.0002"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K121	0000
						0.003"	-0.0003" to 0.0003"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K122	0000
						0.004"	-0.0005" to 0.0005"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K123	0000
						0.005"	-0.0005" to 0.0005"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K124	0000
						0.006"	-0.0005" to 0.0005"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K178	0000
						0.007"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K179	0000
						0.008"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K181	0000
						0.01"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K125	0000
						0.012"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K147	0000
						0.015"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K126	0000


						0.02"	-0.001" to 0.001"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K127	00000
						0.025"	-0.001" to 0.001"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K148	00000
						0.031"	-0.0015" to 0.0015"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K151	00000




								8" Wide × 12" Long

								0.001"	-0.0001" to 0.0001"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K211	0000


								0.002"	-0.0002" to 0.0002"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	5	9011K221	00000
								0.003"	-0.0003" to 0.0003"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	5	9011K231	00000
								0.004"	-0.0005" to 0.0005"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	5	9011K241	00000
								0.005"	-0.0005" to 0.0005"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	5	9011K251	00000
								0.006"	-0.0005" to 0.0005"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K128	0000
								0.007"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	5	9011K261	00000
								0.01"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	5	9011K271	00000
								0.012"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	5	9011K281	00000
								0.015"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	5	9011K291	00000
								0.018"	-0.001" to 0.001"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K182	0000


0.02"	-0.001" to 0.001"							Full Hard	ASTM A109	Sheet	Material Certificate	Paper	5	9011K119	00000
0.025"	-0.001" to 0.001"							Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K12	00000
0.031"	-0.0015" to 0.0015"							Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K13	00000




		10" Wide × 12" Long

		0.005"	-0.0005" to 0.0005"					Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K154	0000


		0.01"	-0.00075" to 0.00075"					Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K155	0000




								12" Wide × 12" Long

								0.005"	-0.0005" to 0.0005"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K129	0000


				0.01"				-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K131	0000
				0.015"	-0.00075" to 0.00075"			Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K132	0000
				0.02"	-0.001" to 0.001"			Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K133	00000




								12" Wide × 24" Long

								0.002"	-0.0002" to 0.0002"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K156	00000


								0.005"	-0.0005" to 0.0005"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K134	00000
								0.01"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K135	00000
								0.015"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K136	00000
								0.02"	-0.001" to 0.001"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K137	00000




										12" Wide × 48" Long

										0.01"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K157	00000




										24" Wide × 24" Long

										0.001"	-0.0001" to 0.0001"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K158	00000


										0.002"	-0.0002" to 0.0002"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K159	00000
										0.003"	-0.0003" to 0.0003"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K161	00000
										0.004"	-0.0005" to 0.0005"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K162	00000
										0.005"	-0.0005" to 0.0005"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K163	00000
										0.007"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K164	00000
										0.008"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K165	00000
										0.01"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K166	00000
										0.012"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K183	00000
										0.015"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K167	00000
										0.025"	-0.001" to 0.001"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K168	00000


										0.031"	-0.0015" to 0.0015"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K169	00000




										24" Wide × 48" Long

										0.01"	-0.00075" to 0.00075"	Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K171	00000




												24" Wide × 50" Long

		0.002"	-0.0002" to 0.0002"									Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K172	00000


		0.003"	-0.0003" to 0.0003"									Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K173	00000
		0.005"	-0.0005" to 0.0005"									Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K153	00000
		0.01"	-0.00075" to 0.00075"									Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K174	00000
		0.025"	-0.001" to 0.001"									Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K175	000000
		0.031"	-0.0015" to 0.0015"									Full Hard	ASTM A109	Sheet	Material Certificate	Paper	1	9011K176	000000




				150 mm Wide × 2,500 mm Long

				0.05 mm	-0.0025 mm to 0.0025 mm							Full Hard	ASTM A109, Fed. Spec. QQ-S-698	Roll	Material Certificate	Paper	1	95085K11	00000


				0.1 mm	-0.005 mm to 0.005 mm							Full Hard	ASTM A109, Fed. Spec. QQ-S-698	Roll	Material Certificate	Paper	1	95085K13	00000
				0.15 mm	-0.0075 mm to 0.0075 mm							Full Hard	ASTM A109, Fed. Spec. QQ-S-698	Roll	Material Certificate	Paper	1	95085K15	00000
				0.2 mm	-0.01 mm to 0.01 mm							Full Hard	ASTM A109, Fed. Spec. QQ-S-698	Roll	Material Certificate	Paper	1	95085K17	00000
				0.25 mm	-0.0125 mm to 0.0125 mm							Full Hard	ASTM A109, Fed. Spec. QQ-S-698	Roll	Material Certificate	Paper	1	95085K19	00000
				0.3 mm	-0.015 mm to 0.015 mm							Full Hard	ASTM A109, Fed. Spec. QQ-S-698	Roll	Material Certificate	Paper	1	95085K21	00000
				0.4 mm	-0.02 mm to 0.02 mm							Full Hard	ASTM A109, Fed. Spec. QQ-S-698	Roll	Material Certificate	Paper	1	95085K23	00000
				0.5 mm	-0.025 mm to 0.025 mm							Full Hard	ASTM A109, Fed. Spec. QQ-S-698	Roll	Material Certificate	Paper	1	95085K25	00000
				0.65 mm	-0.0325 mm to 0.0325 mm							Full Hard	ASTM A109, Fed. Spec. QQ-S-698	Roll	Material Certificate	Paper	1	95085K27	00000
				0.8 mm	-0.04 mm to 0.04 mm			Full Hard				ASTM A109, Fed. Spec. QQ-S-698	Roll	Material Certificate	Paper	1	95085K29	00000

Made-to-Order Shims

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

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 _1/8". 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.

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

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	Specs. Met	Certificate Type	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
Carbon Steel



		0.001"	-0.00005" to 0.00005"	Rockwell B90	ASTM A109, Fed. Spec. QQ-S-698	Material Certificate	16	11885N249	000000	4	11885N265	000000	—	———	0	—	———	0	—	———	0


		0.002"	-0.0001" to 0.0001"	Rockwell B90	ASTM A109, Fed. Spec. QQ-S-698	Material Certificate	16	11885N251	00000	4	11885N266	00000	9	11885N281	0000000	4	11885N295	0000000	1	11885N309	0000000
		0.003"	-0.00015" to 0.00015"	Rockwell B90	ASTM A109, Fed. Spec. QQ-S-698	Material Certificate	16	11885N252	00000	4	11885N267	00000	9	11885N282	000000	4	11885N296	000000	1	11885N311	000000
		0.004"	-0.0002" to 0.0002"	Rockwell B90	ASTM A109, Fed. Spec. QQ-S-698	Material Certificate	16	11885N253	00000	4	11885N268	00000	9	11885N283	000000	4	11885N297	000000	1	11885N312	000000
		0.005"	-0.00025" to 0.00025"	Rockwell B90	ASTM A109, Fed. Spec. QQ-S-698	Material Certificate	16	11885N254	00000	4	11885N269	00000	9	11885N284	00000	4	11885N298	00000	1	11885N313	00000
		0.006"	-0.0003" to 0.0003"	Rockwell B90	ASTM A109, Fed. Spec. QQ-S-698	Material Certificate	16	11885N255	00000	4	11885N271	00000	9	11885N285	00000	4	11885N299	00000	1	11885N314	00000
		0.007"	-0.00035" to 0.00035"	Rockwell B90	ASTM A109, Fed. Spec. QQ-S-698	Material Certificate	16	11885N256	00000	4	11885N272	00000	9	11885N286	00000	4	11885N301	00000	1	11885N315	00000
		0.008"	-0.0004" to 0.0004"	Rockwell B90	ASTM A109, Fed. Spec. QQ-S-698	Material Certificate	16	11885N257	00000	4	11885N273	00000	9	11885N287	00000	4	11885N302	00000	1	11885N316	00000
		0.009"	-0.00045" to 0.00045"	Rockwell B90	ASTM A109, Fed. Spec. QQ-S-698	Material Certificate	16	11885N258	00000	4	11885N274	00000	9	11885N288	00000	4	11885N303	00000	1	11885N317	00000
		0.01"	-0.0005" to 0.0005"	Rockwell B90	ASTM A109, Fed. Spec. QQ-S-698	Material Certificate	16	11885N259	00000	4	11885N275	00000	9	11885N289	00000	4	11885N304	00000	1	11885N318	00000
		0.015"	-0.00075" to 0.00075"	Rockwell B90	ASTM A109, Fed. Spec. QQ-S-698	Material Certificate	16	11885N261	00000	4	11885N276	00000	9	11885N291	00000	4	11885N305	00000	1	11885N319	00000


		0.02"	-0.001" to 0.001"	Rockwell B90	ASTM A109, Fed. Spec. QQ-S-698	Material Certificate	16	11885N262	00000	4	11885N277	00000	9	11885N292	00000	4	11885N306	00000	1	11885N321	00000
		0.025"	-0.00125" to 0.00125"	Rockwell B90	ASTM A109, Fed. Spec. QQ-S-698	Material Certificate	16	11885N263	00000	4	11885N278	00000	9	11885N293	00000	4	11885N307	00000	1	11885N322	00000
		0.031"	-0.00155" to 0.00155"	Rockwell B90	ASTM A109, Fed. Spec. QQ-S-698	Material Certificate	16	11885N264	00000	4	11885N279	00000	9	11885N294	00000	4	11885N308	00000	1	11885N323	00000

Shim Stock Assortments

Image of Product. Front orientation. Shim Stock. Sold as Assortments.

When you don’t know the exact shim thickness you’ll need, keep shim stock in multiple thicknesses on hand so you always have the right one. Cut this 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.

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

	Includes	Wd.	Lg.	Specs. Met	Form		Each
Carbon Steel



	9	One 0.002" thick (±0.0002") sheet One 0.003" thick (±0.0003") sheet One 0.004" thick (±0.0005") sheet One 0.005" thick (±0.0005") sheet One 0.007" thick (±0.00075") sheet One 0.01" thick (±0.00075") sheet One 0.012" thick (±0.00075") sheet One 0.015" thick (±0.00075") sheet One 0.02" thick (±0.001") sheet	8"	12"	ASTM A109	Sheet	9301K5	000000


	12	One 0.001" thick (±0.0001") sheet One 0.0015" thick (±0.00015") sheet One 0.002" thick (±0.0002") sheet One 0.003" thick (±0.0003") sheet One 0.004" thick (±0.0005") sheet One 0.005" thick (±0.0005") sheet One 0.006" thick (±0.0005") sheet One 0.007" thick (±0.00075") sheet One 0.008" thick (±0.00075") sheet One 0.01" thick (±0.00075") sheet One 0.012" thick (±0.00075") sheet One 0.015" thick (±0.00075") sheet	6"	12"	ASTM A109	Sheet	9300K14	00000
	18	Two 0.002" thick (±0.0002”) sheets Two 0.003" thick (±0.0003”) sheets Two 0.004" thick (±0.0005”) sheets Two 0.005" thick (±0.0005”) sheets Two 0.007" thick (±0.00075”) sheets Two 0.01" thick (±0.00075”) sheets Two 0.012" thick (±0.00075”) sheets Two 0.015" thick (±0.00075”) sheets Two 0.02" thick (±0.001”) sheets	8"	12"	ASTM A109	Sheet	9300K117	00000
	24	Two 0.001" thick (±0.0001") sheets Two 0.0015" thick (±0.00015") sheets Two 0.002" thick (±0.0002") sheets Two 0.003" thick (±0.0003") sheets Two 0.004" thick (±0.0005") sheets Two 0.005" thick (0.0005") sheets Two 0.006" thick (±0.0005") sheets Two 0.007" thick (±0.00075") sheets Two 0.008" thick (±0.00075") sheets Two 0.01" thick (±0.00075") sheets Two 0.012" thick (±0.00075") sheets Two 0.015" thick (±0.00075") sheets	6"	12"	ASTM A109	Sheet	9300K118	00000

Finish-Your-Own Shims

Punch a hole in these shims to create a custom ID for uncommon shaft, arbor, and fastener sizes. With thickness tolerances as fine as a strand of hair, these shims precisely align, space, and level components on shafts, arbors, and machinery.

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

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

	Thk.	Thk. Tolerance	Min. Hardness	Specs. Met	Certificate Type	Pkg. Qty.		Pkg.
Carbon Steel







				1/2" OD

				0.001"	-0.0002" to 0.0002"	Rockwell B90	ASTM A109	Material Certificate	5	2904T31	000000


				0.002"	-0.0002" to 0.0002"	Rockwell B90	ASTM A109	Material Certificate	5	2904T38	00000
				0.01"	-0.00075" to 0.00075"	Rockwell B90	ASTM A109	Material Certificate	5	2904T71	00000




						3/4" OD

						0.001"	-0.0002" to 0.0002"	Rockwell B90	ASTM A109	Material Certificate	5	2904T32	00000


						0.002"	-0.0002" to 0.0002"	Rockwell B90	ASTM A109	Material Certificate	5	2904T39	00000
						0.01"	-0.00075" to 0.00075"	Rockwell B90	ASTM A109	Material Certificate	5	2904T72	00000




								1" OD

								0.001"	-0.0002" to 0.0002"	Rockwell B90	ASTM A109	Material Certificate	5	2904T33	00000


								0.002"	-0.0002" to 0.0002"	Rockwell B90	ASTM A109	Material Certificate	5	2904T61	00000
								0.01"	-0.00075" to 0.00075"	Rockwell B90	ASTM A109	Material Certificate	5	2904T73	00000




										1 1/2" OD

										0.001"	-0.0002" to 0.0002"	Rockwell B90	ASTM A109	Material Certificate	5	2904T34	00000


										0.002"	-0.0002" to 0.0002"	Rockwell B90	ASTM A109	Material Certificate	5	2904T62	00000
										0.01"	-0.00075" to 0.00075"	Rockwell B90	ASTM A109	Material Certificate	5	2904T74	00000




												2" OD

												0.001"	-0.0002" to 0.0002"	Rockwell B90	ASTM A109	Material Certificate	5	2904T35	00000


												0.002"	-0.0002" to 0.0002"	Rockwell B90	ASTM A109	Material Certificate	5	2904T63	00000
												0.01"	-0.00075" to 0.00075"	Rockwell B90	ASTM A109	Material Certificate	5	2904T75	00000




														3" OD

0.001"														-0.0002" to 0.0002"	Rockwell B90	ASTM A109	Material Certificate	5	2904T36	00000


0.002"	-0.0002" to 0.0002"													Rockwell B90	ASTM A109	Material Certificate	5	2904T64	00000
0.01"	-0.00075" to 0.00075"													Rockwell B90	ASTM A109	Material Certificate	5	2904T76	00000




		4" OD

		0.001"	-0.0002" to 0.0002"											Rockwell B90	ASTM A109	Material Certificate	5	2904T37	00000


		0.002"	-0.0002" to 0.0002"											Rockwell B90	ASTM A109	Material Certificate	5	2904T65	00000
		0.01"	-0.00075" to 0.00075"											Rockwell B90	ASTM A109	Material Certificate	5	2904T77	00000