0.042" Aluminum Sheets | McMaster-Carr

	REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration, Evaluation, Authorization and Restriction of Chemicals)

REACH Compliant

	Color Color

	Blue
	Off-White

	Certificate Certificate

	Material Certificate with Traceable Lot Number

	Appearance Appearance

	Plain

	Minimum Temperature Minimum Temperature

-99° to 0° F

Not Rated

	Yield Strength Yield Strength

20,000 to 99,999 psi

100,000 to 199,999 psi

Not Rated

	Tolerance Rating Tolerance Rating

Standard

	Elongation Elongation

9.5%

10%

Not Rated

	Fabrication Fabrication

Cold Worked

	Material Thickness Material Thickness

0.04"

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68 Products

Fatigue-Resistant 301 Stainless Steel

Able to withstand repeated stress and wear, 301 stainless steel has the strength required for applications such as springs and fasteners. It maintains its corrosion resistance in temperatures up to 1550° F.

For technical drawings and 3-D models, click on a part number.

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

Sheets

6" × 6"
Thick.	Thick. Tolerance	Yield Strength, psi	Fabrication	Hardness	Specifications Met		Each
1/4 Hard Temper
0.042"	-0.003" to 0.003"	75,000	Cold Worked	Rockwell C25 (Hard)	ASTM A666, SAE AMS5517	00000000	000000
1/2 Hard Temper
0.042"	-0.003" to 0.003"	110,000	Cold Worked	Rockwell C30 (Hard)	ASTM A666, SAE AMS5518	00000000	00000
Full Hard Temper
0.042"	-0.003" to 0.003"	140,000	Cold Worked	Rockwell C40 (Hard)	ASTM A666, SAE AMS5519	00000000	00000
12" × 12"
1/4 Hard Temper
0.042"	-0.003" to 0.003"	75,000	Cold Worked	Rockwell C25 (Hard)	ASTM A666, SAE AMS5517	0000000	00000
1/2 Hard Temper
0.042"	-0.003" to 0.003"	110,000	Cold Worked	Rockwell C30 (Hard)	ASTM A666, SAE AMS5518	0000000	00000
Full Hard Temper
0.042"	-0.003" to 0.003"	140,000	Cold Worked	Rockwell C40 (Hard)	ASTM A666, SAE AMS5519	0000000	00000
12" × 36"
1/4 Hard Temper
0.042"	-0.003" to 0.003"	75,000	Cold Worked	Rockwell C25 (Hard)	ASTM A666, SAE AMS5517	0000000	00000
1/2 Hard Temper
0.042"	-0.003" to 0.003"	110,000	Cold Worked	Rockwell C30 (Hard)	ASTM A666, SAE AMS5518	0000000	00000
Full Hard Temper
0.042"	-0.003" to 0.003"	140,000	Cold Worked	Rockwell C40 (Hard)	ASTM A666, SAE AMS5519	0000000	00000

Wear-Resistant 1095 Spring Steel Sheets and Strips

Yield Strength: Not Rated
Hardness: Rockwell C50 (Very Hard)

1095 spring steel has a higher carbon content than 1075 spring steel for better wear resistance. It is often fabricated into parts that will be used under continual stress, such as spring clips and washers. This material is also known as blue-tempered steel.

For technical drawings and 3-D models, click on a part number.

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

0.042" Thick. (-0.002" to 0.002" Tolerance)
Wd.	Lg., ft.	Heat Treatment	Mechanical Finish	Color		Each
1/4"	25	Hardened	Polished	Blue	00000000	000000
1/4"	100	Hardened	Polished	Blue	00000000	00000
3/8"	10	Hardened	Polished	Blue	00000000	00000
3/8"	100	Hardened	Polished	Blue	00000000	000000
1/2"	10	Hardened	Polished	Blue	00000000	00000
1/2"	100	Hardened	Polished	Blue	00000000	000000
5/8"	10	Hardened	Polished	Blue	00000000	00000
5/8"	75	Hardened	Polished	Blue	00000000	000000
3/4"	10	Hardened	Polished	Blue	00000000	00000
3/4"	50	Hardened	Polished	Blue	00000000	00000
1"	10	Hardened	Polished	Blue	00000000	00000
1"	50	Hardened	Polished	Blue	00000000	00000
1 1/4"	5	Hardened	Polished	Blue	00000000	00000
1 1/4"	50	Hardened	Polished	Blue	00000000	00000
1 1/2"	5	Hardened	Polished	Blue	00000000	00000
1 1/2"	25	Hardened	Polished	Blue	00000000	00000
2"	4	Hardened	Polished	Blue	00000000	00000
2"	25	Hardened	Polished	Blue	00000000	000000
3"	3	Hardened	Polished	Blue	00000000	00000
3"	20	Hardened	Polished	Blue	00000000	000000
4"	2	Hardened	Polished	Blue	00000000	00000
4"	10	Hardened	Polished	Blue	00000000	00000
6"	2	Hardened	Polished	Blue	00000000	00000
6"	9	Hardened	Polished	Blue	00000000	00000
8"	1	Hardened	Polished	Blue	00000000	00000
8"	7	Hardened	Polished	Blue	0000000	000000
10"	1	Hardened	Polished	Blue	00000000	00000
10"	5	Hardened	Polished	Blue	0000000	000000
12 3/8"	2	Hardened	Polished	Blue	0000000	00000
12 3/8"	5	Hardened	Polished	Blue	0000000	000000

Easy-to-Form Wear-Resistant 1095 Spring Steel Sheets

Yield Strength: Not Rated
Hardness: Rockwell B90 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Not Rated

These sheets have a softened temper, which is also known as annealed, so they can be easily formed into shape and then heat treated for spring properties. 1095 spring steel has a higher carbon content than 1075 spring steel for better wear resistance. It is often fabricated into parts that will be used under continual stress, such as spring clips and washers.

For technical drawings and 3-D models, click on a part number.

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

3" × 3"
Thick.	Thick. Tolerance	Heat Treatment	Flatness Tolerance		Each
0.042"	-0.002" to 0.002"	Annealed (Softened)	3/8"	00000000	000000
8" × 12"
0.042"	-0.002" to 0.002"	Annealed (Softened)	3/8"	0000000	00000
8" × 24"
0.042"	-0.002" to 0.002"	Annealed (Softened)	3/8"	0000000	00000
15" × 48"
0.042"	-0.002" to 0.002"	Annealed (Softened)	3/8"	0000000	00000
24" × 24"
0.042"	-0.002" to 0.002"	Annealed (Softened)	3/8"	00000000	00000
24" × 48"
0.042"	-0.002" to 0.002"	Annealed (Softened)	3/8"	00000000	000000

1075 Spring Steel Strips

Yield Strength: Not Rated
Hardness: Rockwell C45 (Hard)

1075 spring steel is easier to bend than 1095, but it has less bounce-back after heat treating. It is often used for springs and shims. This material is also known as scaleless steel.

For technical drawings and 3-D models, click on a part number.

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

0.042" Thick. (-0.001" to 0.001" Tolerance)
Wd.	Lg., ft.	Heat Treatment		Each
1/2"	5	Hardened	0000000	000000
1"	25	Hardened	00000000	00000
2"	10	Hardened	00000000	00000
3"	10	Hardened	00000000	00000
4"	5	Hardened	00000000	00000
6"	4	Hardened	00000000	00000

Easy-to-Form 1075 Spring Steel Sheets

Yield Strength: 50,000 psi
Hardness: Rockwell B90 (Medium)
Heat Treatable: Yes
Max. Hardness After Heat Treatment: Rockwell C64
Specifications Met: ASTM A684

These sheets have a softened temper, which is also known as annealed, so they can be easily formed into shape and then heat treated for spring properties. 1075 spring steel is easier to bend than 1095, but it has less bounce-back after heat treating. It is often used for springs and shims.

For technical drawings and 3-D models, click on a part number.

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

				8" × 12"		8" × 24"		15" × 48"
Thick.	Thick. Tolerance	Heat Treatment	Flatness Tolerance		Each		Each		Each
0.042"	-0.003" to 0.003"	Annealed (Softened)	3/8"	0000000	000000	0000000	000000	0000000	000000

Easy-To-Form Multipurpose 1050 Spring Steel Sheets

Yield Strength: 60,000 psi
Hardness: Rockwell B92
Heat Treatable: Yes
Maximum Hardness After Heat Treatment: Rockwell C58
Specifications Met: ASTM A682

Containing more carbon than low-carbon steel—but less than 1095 spring steel—1050 spring steel is easily formed into parts such as washers, brackets, and springs before being hardened for use. It resists stress, so it won’t snap when formed or twisted. Because it has a lower carbon content than 1095 spring steel, it’s not as wear resistant.

For technical drawings and 3-D models, click on a part number.

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

				8" × 12"		8" × 24"		15" × 48"
Thickness	Thickness Tolerance	Heat Treatment	Flatness Tolerance		Each		Each		Each
0.042"	-0.003" to 0.003"	Annealed (Softened)	Not Rated	0000000	000000	0000000	000000	0000000	000000

Shim Stock

Cut it into custom shapes to fit your application.

Spring steel shim stock is comparable in strength to carbon steel shim stock, but is harder and holds its shape better. It isn't as corrosion resistant as other shims.

For technical drawings and 3-D models, click on a part number.

1075 Spring Steel Sheets

24" Wd. × 48" Lg.
Thick.	Thick. Tolerance	Min. Hardness	Temper Rating	Certification	Specifications Met		Each
0.042"	-0.002" to 0.002"	Rockwell C44	Full Hard	Material Certificate with Traceable Lot Number and Test Report	ASTM A682, ASTM A684	00000000	0000000

1095 Spring Steel Sheets

6" Wd. × 25" Lg.
Thick.	Thick. Tolerance	Min. Hardness	Temper Rating	Certification	Specifications Met		Each
0.042"	-0.002" to 0.002"	Rockwell C48	Full Hard	Material Certificate with Traceable Lot Number and Test Report	ASTM A684, SAE AMS5122	00000000	000000

Adhesive-Back Shim Stock

A durable acrylic adhesive keeps this shim stock from sliding out of place. Cut it into custom shapes to fit your application. Shim stock is corrosion resistant. It includes a material certificate with traceable lot number and test report.

Aluminum and brass shim stock are softer than stainless steel, so they can be used as wear plates between components that rub together, preventing damage to equipment. Aluminum shim stock is lighter than brass.

For technical drawings and 3-D models, click on a part number.

					Hardness
Thick.	Thick. Tolerance	Material Thick.	Adhesive Thick.	Adhesive Type	Min.	Temper Rating	Specifications Met	Liner Type	Magnetic Properties		Each
1100 Aluminum
6" × 12"
0.042"	-0.004" to 0.004"	0.04"	0.002"	Acrylic	Not Rated	Softened (Annealed)	ASTM B209	Paper	Nonmagnetic	00000000	000000

Electrical-Insulating Cup Sleeve Washers

These washers have a flat bottom and high walls to protect metal screw heads from electrical current and prevent galvanic corrosion from mating different types of metal.

Nylon washers may expand when exposed to moisture.

For technical drawings and 3-D models, click on a part number.

							Temperature Range, °F
For Screw Size	ID	OD	Cup ID	Inside Dp.	Thick.	Overall Ht.	Min.	Max.	Hardness	Color	Pkg. Qty.		Pkg.
Nylon Plastic
1/4"	0.257"	0.595"	0.535"	0.247"	0.042"	0.289"	-40°	180°	Rockwell R120	Off-White	100	000000000	000000

Split Lock Washers for Socket Head Screws

Also known as high-collar lock washers, these have smaller outside diameters than standard split lock washers to fit neatly under socket head cap screws. As a screw is tightened, they flatten to add tension to the joint and prevent loosening from small amounts of vibration.

Black-oxide steel washers are mildly corrosion resistant in dry environments. Zinc-plated steel washers are corrosion resistant in wet environments.

Washers that meet ASME B18.21.1 adhere to strict dimensional standards. Steel washers also meet standards for material properties.

For technical drawings and 3-D models, click on a part number.

Black-Oxide Steel
For Screw Size	ID	OD	Thick.	Hardness	Specifications Met	Pkg. Qty.		Pkg.
No. 8	0.174"	0.267"	0.042"	Rockwell C38	ASME B18.21.1	50	000000000	00000
Zinc-Plated Steel
No. 8	0.174"	0.267"	0.042"	Rockwell C38	ASME B18.21.1	50	000000000	0000

Cotton Fabric Sheets and Strips

Also known as cotton duck and canvas, this fabric can be used as dust covers, drop cloths, and straps.

Off-white fabric is unbleached.

Sheets

					Off-White
Wd.	Thick.	Density, oz./sq. yd.	Cotton Duck Trade Number	Lengths, ft.		Per Ft.
36"	0.042"	18	8	2, 5, 10, 20, 50	0000000	00000
48"	0.042"	18	8	5, 10, 20, 50	0000000	0000

Ultra-High-Temperature Metal-Faced Vermiculite Gasket Material

An ETP (electrolytic tin plate) laminate covers the vermiculite core to ensure these gasket sheets maintain their shape as they expand and contract during heating/cooling cycles. Maximum temperature is 1830° F. These sheets resist vibration. Use them when a strong seal is required in boilers and furnaces. They can be die-cut.

For technical drawings and 3-D models, click on a part number.

			0.042" Thick.
Wd.	Lg.	Max. Temperature, °F		Each
7 3/4"	45"	1830°	0000000	000000
24"	45"	1830°	0000000	00000

Shims for Keyway Broaches

When broaching in multiple passes, shims are necessary to ensure full keyway depth. Slide them between the broach and bushing to set the depth of the keyway.

Note: Broaches have a style designation of A, B, B1, C, C1, D, D1, or E. For proper fit, broaches, bushings, and shims used together must have the same letter designation.

For technical drawings and 3-D models, click on a part number.

For Keyway Wd.	For Broach Style	Thick.	Overall Lg.	Material		Each
5/32"	B	0.0420"	1 13/16"	Steel	0000000	00000