ASTM B36 Brass Shim Stock

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Material Thickness

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Specifications Met

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162 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.

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.

				Certificate
	Thk.	Thk. Tolerance	Temper Rating	Type	Form	Specs. Met	Form		Each
Brass







				6" Wide × 25" Long

				0.005"	-0.0005" to 0.0005"	1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9014K182	000000


				0.01"	-0.001" to 0.001"	1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9014K183	00000
				0.012"	-0.0012" to 0.0012"	1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9014K211	00000
				0.015"	-0.0015" to 0.0015"	1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9014K213	00000
				0.02"	-0.002" to 0.002"	1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9014K215	00000
				0.025"	-0.001" to 0.001"	1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9014K217	00000
				0.031"	-0.0015" to 0.0015"	1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9014K219	00000




						6" Wide × 50" Long

						0.001"	-0.0001" to 0.0001"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K321	00000


						0.002"	-0.0002" to 0.0002"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K322	00000
						0.003"	-0.0003" to 0.0003"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K323	00000
						0.004"	-0.0004" to 0.0004"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K324	00000
						0.005"	-0.0005" to 0.0005"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K325	00000
						0.006"	-0.0006" to 0.0006"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K326	00000
						0.007"	-0.0007" to 0.0007"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K327	00000
						0.008"	-0.0008" to 0.0008"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K328	00000
						0.01"	-0.001" to 0.001"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K329	00000
						0.012"	-0.0012" to 0.0012"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K331	00000
						0.015"	-0.0015" to 0.0015"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K332	00000


						0.02"	-0.002" to 0.002"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K333	00000




								6" Wide × 60" Long

								0.001"	-0.0001" to 0.0001"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K41	00000


								0.0015"	-0.00015" to 0.00015"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K42	00000
								0.002"	-0.0002" to 0.0002"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K43	00000
								0.003"	-0.0003" to 0.0003"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K45	00000
								0.004"	-0.0004" to 0.0004"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K47	00000
								0.005"	-0.0005" to 0.0005"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K48	00000
								0.006"	-0.0006" to 0.0006"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K49	00000
								0.007"	-0.0007" to 0.0007"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K51	00000
								0.008"	-0.0008" to 0.0008"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K52	00000
								0.009"	-0.0009" to 0.0009"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K53	00000
								0.01"	-0.001" to 0.001"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K54	00000


								0.012"	-0.0012" to 0.0012"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K55	00000
								0.015"	-0.0015" to 0.0015"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K56	00000
								0.02"	-0.002" to 0.002"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K58	00000
0.025"								-0.0025" to 0.0025"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K69	00000
0.031"	-0.0031" to 0.0031"							1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9504K6	00000




		6" Wide × 100" Long

		0.001"	-0.0001" to 0.0001"					1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9501K31	00000


		0.0015"	-0.00015" to 0.00015"					1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9501K32	00000
		0.002"	-0.0002" to 0.0002"					1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9501K33	00000
		0.003"	-0.0003" to 0.0003"					1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9501K34	00000
		0.004"	-0.0004" to 0.0004"					1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9501K35	00000
		0.005"	-0.0005" to 0.0005"					1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9501K36	00000
		0.006"	-0.0006" to 0.0006"					1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9501K37	00000
		0.007"	-0.0007" to 0.0007"					1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9501K38	00000
		0.008"	-0.0008" to 0.0008"					1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9501K39	00000
		0.009"	-0.0009" to 0.0009"					1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9501K51	00000
		0.01"	-0.001" to 0.001"					1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9501K52	00000


		0.012"	-0.0012" to 0.0012"	1/2 Hard	Material Certificate			Paper	ASTM B36	Roll	9501K53	00000
		0.015"	-0.0015" to 0.0015"	1/2 Hard	Material Certificate			Paper	ASTM B36	Roll	9501K54	00000
		0.018"	-0.0018" to 0.0018"	1/2 Hard	Material Certificate			Paper	ASTM B36	Roll	9501K67	000000
		0.02"	-0.002" to 0.002"	1/2 Hard	Material Certificate			Paper	ASTM B36	Roll	9501K55	000000
		0.025"	-0.0025" to 0.0025"	1/2 Hard	Material Certificate			Paper	ASTM B36	Roll	9501K56	000000
		0.031"	-0.0031" to 0.0031"	1/2 Hard	Material Certificate			Paper	ASTM B36	Roll	9501K57	000000




				8" Wide × 12" Long

				0.001"	-0.0001" to 0.0001"			1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9011K821	0000


				0.002"	-0.0002" to 0.0002"			1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9011K201	0000
				0.003"	-0.0003" to 0.0003"			1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9011K301	0000
				0.004"	-0.0004" to 0.0004"			1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9011K401	0000
				0.005"	-0.0005" to 0.0005"			1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9011K501	0000
				0.006"	-0.0003" to 0.0003"			1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9011K93	00000
				0.007"	-0.0007" to 0.0007"			1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9011K601	00000
				0.008"	-0.0004" to 0.0004"	1/2 Hard		Material Certificate	Paper	ASTM B36	Sheet	9011K94	00000
				0.009"	-0.0007" to 0.0007"	1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9011K95	00000
				0.01"	-0.001" to 0.001"	1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9011K701	00000
				0.012"	-0.0012" to 0.0012"	1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9011K801	00000


				0.015"	-0.0015" to 0.0015"	1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9011K901	00000
				0.02"	-0.002" to 0.002"	1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9011K111	00000
				0.025"	-0.001" to 0.001"	1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9011K96	00000
				0.031"	-0.0015" to 0.0015"	1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9011K97	00000




						12" Wide × 120" Long

						0.001"	-0.0001" to 0.0001"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9299K41	00000


						0.002"	-0.0002" to 0.0002"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9299K42	00000
						0.003"	-0.0003" to 0.0003"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9299K43	00000
						0.004"	-0.0004" to 0.0004"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9299K44	00000
						0.005"	-0.0005" to 0.0005"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9299K45	00000
						0.006"	-0.0006" to 0.0006"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9299K46	00000
0.008"						-0.0008" to 0.0008"	1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9299K48	000000
0.01"	-0.001" to 0.001"					1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9299K51	000000
0.012"	-0.0012" to 0.0012"					1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9299K52	000000
0.015"	-0.0015" to 0.0015"					1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9299K55	000000
0.02"	-0.002" to 0.002"					1/2 Hard	Material Certificate	Paper	ASTM B36	Roll	9299K62	000000




						24" Wide × 24" Long

						0.005"	-0.0005" to 0.0005"	1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9014K179	00000


						0.01"	-0.001" to 0.001"	1/2 Hard	Material Certificate	Paper	ASTM B36	Sheet	9014K181	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.

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
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	2951N225	000000


				0.004"	-0.0002" to 0.0002"	0.002"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	2951N226	00000
				0.005"	-0.0003" to 0.0003"	0.003"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	2951N227	00000
				0.006"	-0.0004" to 0.0004"	0.004"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	2951N228	00000
				0.007"	-0.0005" to 0.0005"	0.005"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	2951N229	00000
				0.008"	-0.0006" to 0.0006"	0.006"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	2951N23	00000
				0.01"	-0.0008" to 0.0008"	0.008"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	2951N231	00000
				0.012"	-0.001" to 0.001"	0.01"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	2951N232	00000
				0.014"	-0.0012" to 0.0012"	0.012"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	2951N233	00000
				0.017"	-0.0015" to 0.0015"	0.015"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	2951N234	00000
				0.022"	-0.002" to 0.002"	0.02"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	2951N235	00000


				0.027"	-0.0025" to 0.0025"	0.025"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	2951N236	00000
				0.033"	-0.003" to 0.003"	0.031"	0.002"	Acrylic	1/2 Hard	Material Certificate	Digital	ASTM B36	Sheet	2951N237	00000

Peel-Away Multilayer Made-to-Order Shims

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

If you need a unique peel-away shim shape or size, we’ll precision cut it for you. Use these shims to fine-tune thickness without worrying about stacking multiple shims. They're made of metal layers bonded with adhesive—peel off the layers with a utility knife until you reach your desired thickness. To make peeling easier, warm the shims to soften the adhesive. With thickness tolerances as fine as a strand of hair, all of 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.

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	No. of Layers	Layer Thk.	Min. Hardness	Certificate Type	Specs. Met	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.	Pkg. Qty.		Pkg.
Brass



		0.008"	-0.0004" to 0.0004"	4	0.002"	Not Rated	Material Certificate	ASTM B36	16	11885N467	0000000	4	11885N474	0000000	9	11885N481	0000000	4	11885N487	0000000	1	11885N494	0000000


		0.016"	-0.0008" to 0.0008"	8	0.002"	Not Rated	Material Certificate	ASTM B36	16	11885N468	000000	4	11885N475	000000	9	11885N482	000000	4	11885N488	000000	1	11885N495	000000
		0.032"	-0.0016" to 0.0016"	16	0.002"	Not Rated	Material Certificate	ASTM B36	16	11885N469	000000	4	11885N476	000000	9	11885N483	000000	4	11885N489	000000	1	11885N496	000000
		0.048"	-0.0024" to 0.0024"	24	0.002"	Not Rated	Material Certificate	ASTM B36	16	11885N471	000000	4	11885N477	000000	9	11885N484	000000	4	11885N491	000000	1	11885N497	000000
		0.062"	-0.0031" to 0.0031"	32	0.002"	Not Rated	Material Certificate	ASTM B36	16	11885N472	000000	4	11885N478	000000	9	11885N485	000000	4	11885N492	000000	1	11885N498	000000
		0.124"	-0.0062" to 0.0062"	62	0.002"	Not Rated	Material Certificate	ASTM B36	16	11885N473	000000	4	11885N479	000000	9	11885N486	00000000	4	11885N493	00000000	1	11885N499	00000000

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 _1/8". 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.

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.
Brass



		0.001"	-0.00005" to 0.00005"	Rockwell B60	Material Certificate	ASTM B36, Fed. Spec. QQ-B-613	16	11885N324	000000	4	11885N334	000000	—	———	0	—	———	0	—	———	0


		0.002"	-0.0001" to 0.0001"	Rockwell B60	Material Certificate	ASTM B36, Fed. Spec. QQ-B-613	16	11885N325	00000	4	11885N335	00000	9	11885N344	0000000	4	11885N352	0000000	1	11885N359	0000000
		0.003"	-0.00015" to 0.00015"	Rockwell B60	Material Certificate	ASTM B36, Fed. Spec. QQ-B-613	16	11885N326	00000	4	11885N336	00000	9	11885N345	000000	4	11885N353	000000	1	11885N361	000000
		0.004"	-0.0002" to 0.0002"	Rockwell B60	Material Certificate	ASTM B36, Fed. Spec. QQ-B-613	16	11885N327	00000	4	11885N337	00000	—	———	0	—	———	0	—	———	0
		0.005"	-0.00025" to 0.00025"	Rockwell B60	Material Certificate	ASTM B36, Fed. Spec. QQ-B-613	16	11885N328	00000	4	11885N338	00000	9	11885N346	000000	4	11885N354	000000	1	11885N362	000000
		0.01"	-0.0005" to 0.0005"	Rockwell B60	Material Certificate	ASTM B36, Fed. Spec. QQ-B-613	16	11885N329	00000	4	11885N339	00000	9	11885N347	000000	4	11885N355	000000	1	11885N363	000000
		0.02"	-0.001" to 0.001"	Rockwell B60	Material Certificate	ASTM B36, Fed. Spec. QQ-B-613	16	11885N331	00000	4	11885N341	00000	9	11885N348	000000	4	11885N356	000000	1	11885N364	000000
		0.025"	-0.00125" to 0.00125"	Rockwell B60	Material Certificate	ASTM B36, Fed. Spec. QQ-B-613	16	11885N332	00000	4	11885N342	00000	9	11885N349	000000	4	11885N357	000000	1	11885N365	000000
		0.031"	-0.00155" to 0.00155"	Rockwell B60	Material Certificate	ASTM B36, Fed. Spec. QQ-B-613	16	11885N333	00000	4	11885N343	00000	9	11885N351	000000	4	11885N358	000000	1	11885N366	000000