Disc Spacers | McMaster-Carr

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	System of Measurement System of Measurement

Inch

	OD OD

1/2"

3/4"

1 1/2"

	Thickness Thickness

0.001"

0.002"

0.01"

	Material Material

Stainless Steel

Steel

	Shape Shape	Show

Disc

	Shape Shape	Hide

	Magnetic Properties Magnetic Properties

May Be Mildly Magnetic

Magnetic

	Specifications Met Specifications Met

ASTM A109

ASTM A666

	DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense Acquisition Regulations Supplement)

DFARS Specialty Metals
COTS-Exempt

	Certification Certification

	Material Certificate with Traceable Lot Number and Test Report

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

REACH Compliant

	RoHS (Restriction of Hazardous Substances) RoHS (Restriction of Hazardous Substances)

RoHS Compliant

	Individual/Set Individual/Set

Individual

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42 Products

Disc Shims

Use these round shims as they are, or punch out the middle to create the ID you need. They include a material certificate with traceable lot number and test report.

Stainless steel shims are more corrosion resistant than carbon steel shims.

Carbon steel shims have excellent strength and can be welded.

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

18-8 Stainless Steel

0.001" Thick. (-0.00008" to 0.00008" Tolerance)
OD	OD Tolerance	Min. Hardness	Certification	Specifications Met	Magnetic Properties	Pkg. Qty.		Pkg.
1/2"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	000000
3/4"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
1"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
1 1/2"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
2"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
3"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
4"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
0.002" Thick. (-0.0001" to 0.0001" Tolerance)
1/2"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
3/4"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
1"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
1 1/2"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
2"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
3"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
4"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
0.01" Thick. (-0.0005" to 0.0005" Tolerance)
1/2"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
3/4"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
1"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
1 1/2"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
2"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
3"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000
4"	-0.005" to 0.005"	Rockwell C40	Material Certificate with Traceable Lot Number and Test Report	ASTM A666	May Be Mildly Magnetic	5	0000000	00000

1008-1010 Carbon Steel

0.001" Thick. (-0.0002" to 0.0002" Tolerance)
OD	OD Tolerance	Min. Hardness	Certification	Specifications Met	Magnetic Properties	Pkg. Qty.		Pkg.
1/2"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	000000
3/4"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
1"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
1 1/2"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
2"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
3"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
4"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
0.002" Thick. (-0.0002" to 0.0002" Tolerance)
1/2"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
3/4"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
1"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
1 1/2"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
2"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
3"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
4"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
0.01" Thick. (-0.00075" to 0.00075" Tolerance)
1/2"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
3/4"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
1"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
1 1/2"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
2"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
3"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000
4"	-0.005" to 0.005"	Rockwell B90	Material Certificate with Traceable Lot Number and Test Report	ASTM A109	Magnetic	5	0000000	00000