Shoulder Screw Washers | McMaster-Carr

	System of Measurement System of Measurement

Inch

Metric

	ID ID

	OD OD

	Thickness Thickness

	For Screw Size For Screw Size

	Material Material

Stainless Steel

Steel

	For Shoulder Diameter For Shoulder Diameter

	Minimum Hardness Minimum Hardness

Rockwell B70

Rockwell C40

	Magnetic Properties Magnetic Properties

May Be Mildly Magnetic

Magnetic

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

RoHS Compliant

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

REACH Compliant

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Number of Pieces Number of Pieces

270

300

	Container Features Container Features

316 Products

Shims for Shortening Screw Shoulders

Slide these shims under a screw head to shorten the shoulder length.

Stainless steel shims are more corrosion resistant than spring steel shims. 316 stainless steel shims have the best corrosion resistance of our stainless steel shims.

Spring steel shims are harder and hold their shape better than stainless steel shims.

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

316 Stainless Steel

0.005" Thick. (-0.0005" to 0.0005" Tolerance)
For Shoulder Dia.	For Screw Size	ID	ID Tolerance	OD	OD Tolerance	Min. Hardness	Magnetic Properties	Pkg. Qty.		Pkg.
1/8"	No. 4	1/8"	0" to 0.012"	1/4"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
3/16"	No. 8	3/16"	0" to 0.012"	5/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
1/4"	No. 10	1/4"	0" to 0.012"	3/8"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
5/16"	1/4"	5/16"	0" to 0.012"	7/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
3/8"	5/16"	3/8"	0" to 0.012"	9/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
1/2"	3/8"	1/2"	0" to 0.012"	3/4"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
6mm	M6	6mm	0mm to 0.25mm	9.78mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
8mm	M8	8mm	0mm to 0.25mm	12.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
10mm	M10	10mm	0mm to 0.25mm	15.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
12mm	M12	12mm	0mm to 0.25mm	17.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
16mm	M16	16mm	0mm to 0.25mm	23.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	0000
20mm	M20	20mm	0mm to 0.25mm	29.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	0000
0.01" Thick. (-0.001" to 0.001" Tolerance)
1/8"	No. 4	1/8"	0" to 0.012"	1/4"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	0000
3/16"	No. 8	3/16"	0" to 0.012"	5/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
1/4"	No. 10	1/4"	0" to 0.012"	3/8"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
5/16"	1/4"	5/16"	0" to 0.012"	7/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
3/8"	5/16"	3/8"	0" to 0.012"	9/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
1/2"	3/8"	1/2"	0" to 0.012"	3/4"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
6mm	M6	6mm	0mm to 0.25mm	9.78mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
8mm	M8	8mm	0mm to 0.25mm	12.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
10mm	M10	10mm	0mm to 0.25mm	15.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
12mm	M12	12mm	0mm to 0.25mm	17.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
16mm	M16	16mm	0mm to 0.25mm	23.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	0000
20mm	M20	20mm	0mm to 0.25mm	29.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	0000
0.03" Thick. (-0.003" to 0.003" Tolerance)
1/8"	No. 4	1/8"	0" to 0.012"	1/4"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	0000
3/16"	No. 8	3/16"	0" to 0.012"	5/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
1/4"	No. 10	1/4"	0" to 0.012"	3/8"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
5/16"	1/4"	5/16"	0" to 0.012"	7/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
3/8"	5/16"	3/8"	0" to 0.012"	9/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
1/2"	3/8"	1/2"	0" to 0.012"	3/4"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
0.031" Thick. (-0.003" to 0.003" Tolerance)
6mm	M6	6mm	0mm to 0.25mm	9.78mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	0000
8mm	M8	8mm	0mm to 0.25mm	12.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	0000
10mm	M10	10mm	0mm to 0.25mm	15.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	0000
12mm	M12	12mm	0mm to 0.25mm	17.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
16mm	M16	16mm	0mm to 0.25mm	23.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
20mm	M20	20mm	0mm to 0.25mm	29.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	0000

18-8 Stainless Steel

0.005" Thick. (-0.0005" to 0.0005" Tolerance)
For Shoulder Dia.	For Screw Size	ID	ID Tolerance	OD	OD Tolerance	Min. Hardness	Magnetic Properties	Pkg. Qty.		Pkg.
1/8"	No. 4	1/8"	0" to 0.012"	1/4"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
3/16"	No. 8	3/16"	0" to 0.012"	5/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	0000
1/4"	No. 10	1/4"	0" to 0.012"	3/8"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	50	000000000	0000
5/16"	1/4"	5/16"	0" to 0.012"	7/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	50	000000000	00000
3/8"	5/16"	3/8"	0" to 0.012"	9/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
1/2"	3/8"	1/2"	0" to 0.012"	3/4"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	0000
6mm	M6	6mm	0mm to 0.25mm	9.78mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
8mm	M8	8mm	0mm to 0.25mm	12.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
10mm	M10	10mm	0mm to 0.25mm	15.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
12mm	M12	12mm	0mm to 0.25mm	17.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
16mm	M16	16mm	0mm to 0.25mm	23.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	0000
20mm	M20	20mm	0mm to 0.25mm	29.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	00000
0.01" Thick. (-0.001" to 0.001" Tolerance)
1/8"	No. 4	1/8"	0" to 0.012"	1/4"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	0000
3/16"	No. 8	3/16"	0" to 0.012"	5/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	0000
1/4"	No. 10	1/4"	0" to 0.012"	3/8"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	100	000000000	00000
5/16"	1/4"	5/16"	0" to 0.012"	7/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	0000
3/8"	5/16"	3/8"	0" to 0.012"	9/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	0000
1/2"	3/8"	1/2"	0" to 0.012"	3/4"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
5/8"	1/2"	5/8"	0" to 0.012"	7/8"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
3/4"	5/8"	3/4"	0" to 0.012"	1"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
6mm	M6	6mm	0mm to 0.25mm	9.78mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
8mm	M8	8mm	0mm to 0.25mm	12.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
10mm	M10	10mm	0mm to 0.25mm	15.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
12mm	M12	12mm	0mm to 0.25mm	17.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
16mm	M16	16mm	0mm to 0.25mm	23.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	0000
20mm	M20	20mm	0mm to 0.25mm	29.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	0000
0.015" Thick. (-0.001" to 0.001" Tolerance)
6mm	M6	6mm	0mm to 0.25mm	9.78mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
8mm	M8	8mm	0mm to 0.25mm	12.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
10mm	M10	10mm	0mm to 0.25mm	15.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
12mm	M12	12mm	0mm to 0.25mm	17.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
16mm	M16	16mm	0mm to 0.25mm	23.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	0000
20mm	M20	20mm	0mm to 0.25mm	29.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	0000
0.016" Thick. (-0.002" to 0.002" Tolerance)
1/8"	No. 4	1/8"	0" to 0.012"	1/4"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	0000
3/16"	No. 8	3/16"	0" to 0.012"	5/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	0000
1/4"	No. 10	1/4"	0" to 0.012"	3/8"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	50	000000000	00000
5/16"	1/4"	5/16"	0" to 0.012"	7/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
3/8"	5/16"	3/8"	0" to 0.012"	9/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
1/2"	3/8"	1/2"	0" to 0.012"	3/4"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
5/8"	1/2"	5/8"	0" to 0.012"	7/8"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
3/4"	5/8"	3/4"	0" to 0.012"	1"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
0.02" Thick. (-0.0025" to 0.0025" Tolerance)
1/4"	No. 10	1/4"	0" to 0.012"	3/8"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	50	000000000	0000
5/16"	1/4"	5/16"	0" to 0.012"	7/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	0000
3/8"	5/16"	3/8"	0" to 0.012"	9/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
1/2"	3/8"	1/2"	0" to 0.012"	3/4"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
5/8"	1/2"	5/8"	0" to 0.012"	7/8"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
3/4"	5/8"	3/4"	0" to 0.012"	1"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
0.02" Thick. (-0.002" to 0.002" Tolerance)
1/8"	No. 4	1/8"	0" to 0.012"	1/4"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	0000
3/16"	No. 8	3/16"	0" to 0.012"	5/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	0000
0.02" Thick. (-0.0015" to 0.0015" Tolerance)
6mm	M6	6mm	0mm to 0.25mm	9.78mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
8mm	M8	8mm	0mm to 0.25mm	12.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
10mm	M10	10mm	0mm to 0.25mm	15.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
12mm	M12	12mm	0mm to 0.25mm	17.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	0000
16mm	M16	16mm	0mm to 0.25mm	23.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	0000
20mm	M20	20mm	0mm to 0.25mm	29.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	00000
0.025" Thick. (-0.0015" to 0.0015" Tolerance)
6mm	M6	6mm	0mm to 0.25mm	9.78mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
8mm	M8	8mm	0mm to 0.25mm	12.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
10mm	M10	10mm	0mm to 0.25mm	15.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
12mm	M12	12mm	0mm to 0.25mm	17.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	0000
16mm	M16	16mm	0mm to 0.25mm	23.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	00000
20mm	M20	20mm	0mm to 0.25mm	29.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	00000
0.03" Thick. (-0.003" to 0.003" Tolerance)
1/8"	No. 4	1/8"	0" to 0.012"	1/4"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	0000
3/16"	No. 8	3/16"	0" to 0.012"	5/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	0000
1/4"	No. 10	1/4"	0" to 0.012"	3/8"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	50	000000000	00000
5/16"	1/4"	5/16"	0" to 0.012"	7/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	100	000000000	00000
3/8"	5/16"	3/8"	0" to 0.012"	9/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	50	000000000	00000
1/2"	3/8"	1/2"	0" to 0.012"	3/4"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	50	000000000	00000
5/8"	1/2"	5/8"	0" to 0.012"	7/8"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
3/4"	5/8"	3/4"	0" to 0.012"	1"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	0000
0.031" Thick. (-0.002" to 0.002" Tolerance)
6mm	M6	6mm	0mm to 0.25mm	9.78mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
8mm	M8	8mm	0mm to 0.25mm	12.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	0000
10mm	M10	10mm	0mm to 0.25mm	15.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	00000
12mm	M12	12mm	0mm to 0.25mm	17.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	00000
16mm	M16	16mm	0mm to 0.25mm	23.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	00000
20mm	M20	20mm	0mm to 0.25mm	29.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	00000
0.06" Thick. (-0.004" to 0.004" Tolerance)
1/8"	No. 4	1/8"	0" to 0.012"	1/4"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	5	000000000	0000
3/16"	No. 8	3/16"	0" to 0.012"	5/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	5	000000000	0000
0.06" Thick. (-0.0035" to 0.0035" Tolerance)
1/4"	No. 10	1/4"	0" to 0.012"	3/8"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	0000
5/16"	1/4"	5/16"	0" to 0.012"	7/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	0000
3/8"	5/16"	3/8"	0" to 0.012"	9/16"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	0000
1/2"	3/8"	1/2"	0" to 0.012"	3/4"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
5/8"	1/2"	5/8"	0" to 0.012"	7/8"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	0000
3/4"	5/8"	3/4"	0" to 0.012"	1"	-0.005" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	0000
0.062" Thick. (-0.002" to 0.002" Tolerance)
6mm	M6	6mm	0mm to 0.25mm	9.78mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	0000
8mm	M8	8mm	0mm to 0.25mm	12.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
10mm	M10	10mm	0mm to 0.25mm	14.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
12mm	M12	12mm	0mm to 0.25mm	17.73mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
16mm	M16	16mm	0mm to 0.25mm	23.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	0000
20mm	M20	20mm	0mm to 0.25mm	29.67mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	5	000000000	00000

1074-1095 Spring Steel

0.005" Thick. (-0.0005" to 0.0005" Tolerance)
For Shoulder Dia.	For Screw Size	ID	ID Tolerance	OD	OD Tolerance	Min. Hardness	Magnetic Properties	Pkg. Qty.		Pkg.
1/8"	No. 4	1/8"	0" to 0.012"	1/4"	-0.005" to 0.002"	Rockwell C40	Magnetic	10	000000000	00000
3/16"	No. 8	3/16"	0" to 0.012"	5/16"	-0.005" to 0.002"	Rockwell C40	Magnetic	10	000000000	0000
1/4"	No. 10	1/4"	0" to 0.012"	3/8"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000
5/16"	1/4"	5/16"	0" to 0.012"	7/16"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000
3/8"	5/16"	3/8"	0" to 0.012"	9/16"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000
1/2"	3/8"	1/2"	0" to 0.012"	3/4"	-0.005" to 0.002"	Rockwell C40	Magnetic	10	000000000	00000
5/8"	1/2"	5/8"	0" to 0.012"	7/8"	-0.005" to 0.002"	Rockwell C40	Magnetic	10	000000000	00000
3/4"	5/8"	3/4"	0" to 0.012"	1"	-0.005" to 0.002"	Rockwell C40	Magnetic	10	000000000	00000
5mm	M5	5mm	0mm to 0.25mm	7.82mm	-0.25mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
6mm	M6	6mm	0mm to 0.25mm	9.78mm	-0.25mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
8mm	M8	8mm	0mm to 0.25mm	12.73mm	-0.25mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
10mm	M10	10mm	0mm to 0.25mm	14.73mm	-0.25mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
12mm	M12	12mm	0mm to 0.25mm	17.73mm	-0.25mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
0.01" Thick. (-0.002" to 0.002" Tolerance)
1/8"	No. 4	1/8"	0" to 0.012"	1/4"	-0.005" to 0.002"	Rockwell C40	Magnetic	10	000000000	0000
3/16"	No. 8	3/16"	0" to 0.012"	5/16"	-0.005" to 0.002"	Rockwell C40	Magnetic	10	000000000	0000
1/4"	No. 10	1/4"	0" to 0.012"	3/8"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
5/16"	1/4"	5/16"	0" to 0.012"	7/16"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
3/8"	5/16"	3/8"	0" to 0.012"	9/16"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
1/2"	3/8"	1/2"	0" to 0.012"	3/4"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
5/8"	1/2"	5/8"	0" to 0.012"	7/8"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
3/4"	5/8"	3/4"	0" to 0.012"	1"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
0.01" Thick. (-0.001" to 0.001" Tolerance)
5mm	M5	5mm	0mm to 0.25mm	7.82mm	-0.25mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
6mm	M6	6mm	0mm to 0.25mm	9.78mm	-0.25mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
8mm	M8	8mm	0mm to 0.25mm	12.73mm	-0.25mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
10mm	M10	10mm	0mm to 0.25mm	14.73mm	-0.25mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
12mm	M12	12mm	0mm to 0.25mm	17.73mm	-0.25mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
16mm	M16	16mm	0mm to 0.25mm	23.67mm	-0.25mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
0.015" Thick. (-0.002" to 0.002" Tolerance)
1/8"	No. 4	1/8"	0" to 0.012"	1/4"	-0.005" to 0.002"	Rockwell C40	Magnetic	10	000000000	0000
3/16"	No. 8	3/16"	0" to 0.012"	5/16"	-0.005" to 0.002"	Rockwell C40	Magnetic	10	000000000	0000
1/4"	No. 10	1/4"	0" to 0.012"	3/8"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
5/16"	1/4"	5/16"	0" to 0.012"	7/16"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
3/8"	5/16"	3/8"	0" to 0.012"	9/16"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
1/2"	3/8"	1/2"	0" to 0.012"	3/4"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
5/8"	1/2"	5/8"	0" to 0.012"	7/8"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
3/4"	5/8"	3/4"	0" to 0.012"	1"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
0.015" Thick. (-0.001" to 0.001" Tolerance)
8mm	M8	8mm	0mm to 0.25mm	12.73mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	0000
10mm	M10	10mm	0mm to 0.25mm	15.73mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
12mm	M12	12mm	0mm to 0.25mm	17.73mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
16mm	M16	16mm	0mm to 0.25mm	23.67mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	5	000000000	0000
20mm	M20	20mm	0mm to 0.25mm	29.67mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	5	000000000	0000
0.02" Thick. (-0.002" to 0.002" Tolerance)
1/8"	No. 4	1/8"	0" to 0.012"	1/4"	-0.005" to 0.002"	Rockwell C40	Magnetic	10	000000000	0000
3/16"	No. 8	3/16"	0" to 0.012"	5/16"	-0.005" to 0.002"	Rockwell C40	Magnetic	10	000000000	0000
1/4"	No. 10	1/4"	0" to 0.012"	3/8"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
5/16"	1/4"	5/16"	0" to 0.012"	7/16"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
3/8"	5/16"	3/8"	0" to 0.012"	9/16"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
1/2"	3/8"	1/2"	0" to 0.012"	3/4"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
5/8"	1/2"	5/8"	0" to 0.012"	7/8"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
3/4"	5/8"	3/4"	0" to 0.012"	1"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
6mm	M6	6mm	0mm to 0.25mm	9.78mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	0000
8mm	M8	8mm	0mm to 0.25mm	12.73mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
10mm	M10	10mm	0mm to 0.25mm	15.73mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
12mm	M12	12mm	0mm to 0.25mm	17.73mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
16mm	M16	16mm	0mm to 0.25mm	23.67mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	5	000000000	0000
20mm	M20	20mm	0mm to 0.25mm	29.67mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	5	000000000	0000
0.031" Thick. (-0.003" to 0.003" Tolerance)
8mm	M8	8mm	0mm to 0.25mm	12.73mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	0000
10mm	M10	10mm	0mm to 0.25mm	15.73mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
12mm	M12	12mm	0mm to 0.25mm	17.73mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
16mm	M16	16mm	0mm to 0.25mm	23.67mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	5	000000000	0000
0.032" Thick. (-0.003" to 0.003" Tolerance)
1/8"	No. 4	1/8"	0" to 0.012"	1/4"	-0.005" to 0.002"	Rockwell C40	Magnetic	10	000000000	0000
3/16"	No. 8	3/16"	0" to 0.012"	5/16"	-0.005" to 0.002"	Rockwell C40	Magnetic	10	000000000	0000
1/4"	No. 10	1/4"	0" to 0.012"	3/8"	-0.005" to 0.002"	Rockwell C40	Magnetic	100	000000000	00000
5/16"	1/4"	5/16"	0" to 0.012"	7/16"	-0.005" to 0.002"	Rockwell C40	Magnetic	100	000000000	00000
3/8"	5/16"	3/8"	0" to 0.012"	9/16"	-0.005" to 0.002"	Rockwell C40	Magnetic	100	000000000	00000
1/2"	3/8"	1/2"	0" to 0.012"	3/4"	-0.005" to 0.002"	Rockwell C40	Magnetic	50	000000000	00000
5/8"	1/2"	5/8"	0" to 0.012"	7/8"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
3/4"	5/8"	3/4"	0" to 0.012"	1"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
0.06" Thick. (-0.004" to 0.004" Tolerance)
6mm	M6	6mm	0mm to 0.25mm	9.78mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	5	000000000	0000
8mm	M8	8mm	0mm to 0.25mm	12.73mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	5	000000000	0000
10mm	M10	10mm	0mm to 0.25mm	15.73mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	5	000000000	0000
12mm	M12	12mm	0mm to 0.25mm	17.73mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	5	000000000	0000
16mm	M16	16mm	0mm to 0.25mm	23.67mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	5	000000000	0000
20mm	M20	20mm	0mm to 0.25mm	29.67mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	5	000000000	0000
0.062" Thick. (-0.004" to 0.004" Tolerance)
1/8"	No. 4	1/8"	0" to 0.012"	1/4"	-0.005" to 0.002"	Rockwell C40	Magnetic	5	000000000	0000
3/16"	No. 8	3/16"	0" to 0.012"	5/16"	-0.005" to 0.002"	Rockwell C40	Magnetic	5	000000000	0000
1/4"	No. 10	1/4"	0" to 0.012"	3/8"	-0.005" to 0.002"	Rockwell C40	Magnetic	100	000000000	00000
5/16"	1/4"	5/16"	0" to 0.012"	7/16"	-0.005" to 0.002"	Rockwell C40	Magnetic	100	000000000	00000
3/8"	5/16"	3/8"	0" to 0.012"	9/16"	-0.005" to 0.002"	Rockwell C40	Magnetic	100	000000000	00000
1/2"	3/8"	1/2"	0" to 0.012"	3/4"	-0.005" to 0.002"	Rockwell C40	Magnetic	50	000000000	00000
5/8"	1/2"	5/8"	0" to 0.012"	7/8"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000
3/4"	5/8"	3/4"	0" to 0.012"	1"	-0.005" to 0.002"	Rockwell C40	Magnetic	25	000000000	0000

Shims for Lengthening Screw Shoulders

Spin these shims onto screw threads to extend the shoulder length.

Stainless steel shims are more corrosion resistant than spring steel shims. 316 stainless steel shims have the best corrosion resistance of our stainless steel shims.

Spring steel shims are harder and hold their shape better than stainless steel shims.

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

316 Stainless Steel

0.005" Thick. (-0.0005" to 0.0005" Tolerance)
For Shoulder Dia.	For Screw Size	ID	ID Tolerance	OD	OD Tolerance	Min. Hardness	Magnetic Properties	Pkg. Qty.		Pkg.
3/16"	No. 8	0.146"	0" to 0.011"	0.178"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	000000
1/4"	No. 10	0.171"	0" to 0.011"	0.241"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
5/16"	1/4"	0.234"	0" to 0.011"	0.303"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
3/8"	5/16"	0.289"	0" to 0.011"	0.365"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
1/2"	3/8"	0.352"	0" to 0.011"	0.491"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
6mm	M5	4.95mm	0mm to 0.25mm	5.96mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
8mm	M6	5.92mm	0mm to 0.25mm	7.95mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
10mm	M8	7.82mm	0mm to 0.25mm	9.95mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
16mm	M12	11.65mm	0mm to 0.25mm	15.5mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
0.015" Thick. (-0.001" to 0.001" Tolerance)
6mm	M5	4.95mm	0mm to 0.25mm	5.96mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
8mm	M6	5.92mm	0mm to 0.25mm	7.95mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
10mm	M8	7.82mm	0mm to 0.25mm	9.95mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
12mm	M10	9.7mm	0mm to 0.25mm	11.96mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
0.016" Thick. (-0.002" to 0.002" Tolerance)
1/4"	No. 10	0.171"	0" to 0.011"	0.241"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
5/16"	1/4"	0.234"	0" to 0.011"	0.303"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
3/8"	5/16"	0.289"	0" to 0.011"	0.365"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
1/2"	3/8"	0.352"	0" to 0.011"	0.491"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
0.03" Thick. (-0.003" to 0.003" Tolerance)
1/4"	No. 10	0.171"	0" to 0.011"	0.241"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
5/16"	1/4"	0.234"	0" to 0.011"	0.303"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
3/8"	5/16"	0.289"	0" to 0.011"	0.365"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
1/2"	3/8"	0.352"	0" to 0.011"	0.491"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
0.031" Thick. (-0.002" to 0.002" Tolerance)
8mm	M6	5.92mm	0mm to 0.25mm	7.95mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
10mm	M8	7.82mm	0mm to 0.25mm	9.95mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
12mm	M10	9.7mm	0mm to 0.25mm	11.96mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
16mm	M12	11.65mm	0mm to 0.25mm	15.5mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000
20mm	M16	15.5mm	0mm to 0.25mm	19.93mm	-0.25mm to 0mm	Rockwell B70	May Be Mildly Magnetic	10	000000000	00000

18-8 Stainless Steel

0.005" Thick. (-0.0005" to 0.0005" Tolerance)
For Shoulder Dia.	For Screw Size	ID	ID Tolerance	OD	OD Tolerance	Min. Hardness	Magnetic Properties	Pkg. Qty.		Pkg.
3/16"	No. 8	0.146"	0" to 0.011"	0.178"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	000000
1/4"	No. 10	0.171"	0" to 0.011"	0.241"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	50	000000000	0000
5/16"	1/4"	0.234"	0" to 0.011"	0.303"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	50	000000000	00000
3/8"	5/16"	0.289"	0" to 0.011"	0.365"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	50	000000000	0000
1/2"	3/8"	0.352"	0" to 0.011"	0.491"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	0000
6mm	M5	4.95mm	0mm to 0.25mm	5.96mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
8mm	M6	5.92mm	0mm to 0.25mm	7.95mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
10mm	M8	7.82mm	0mm to 0.25mm	9.95mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
12mm	M10	9.7mm	0mm to 0.25mm	11.96mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
16mm	M12	11.65mm	0mm to 0.25mm	15.5mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
20mm	M16	15.5mm	0mm to 0.25mm	19.93mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
0.01" Thick. (-0.001" to 0.001" Tolerance)
6mm	M5	4.95mm	0mm to 0.25mm	5.96mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
8mm	M6	5.92mm	0mm to 0.25mm	7.95mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
10mm	M8	7.82mm	0mm to 0.25mm	9.95mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
12mm	M10	9.7mm	0mm to 0.25mm	11.96mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
16mm	M12	11.65mm	0mm to 0.25mm	15.5mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
20mm	M16	15.5mm	0mm to 0.25mm	19.93mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
0.015" Thick. (-0.001" to 0.001" Tolerance)
6mm	M5	4.95mm	0mm to 0.25mm	5.96mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
8mm	M6	5.92mm	0mm to 0.25mm	7.95mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
10mm	M8	7.82mm	0mm to 0.25mm	9.95mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
12mm	M10	9.7mm	0mm to 0.25mm	11.96mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
16mm	M12	11.65mm	0mm to 0.25mm	15.5mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
20mm	M16	15.5mm	0mm to 0.25mm	19.93mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
0.016" Thick. (-0.002" to 0.002" Tolerance)
1/4"	No. 10	0.171"	0" to 0.011"	0.241"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	50	000000000	00000
5/16"	1/4"	0.234"	0" to 0.011"	0.303"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	0000
3/8"	5/16"	0.289"	0" to 0.011"	0.365"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
1/2"	3/8"	0.352"	0" to 0.011"	0.491"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
5/8"	1/2"	0.473"	0" to 0.011"	0.616"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
0.02" Thick. (-0.0015" to 0.0015" Tolerance)
8mm	M6	5.92mm	0mm to 0.25mm	7.95mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
10mm	M8	7.82mm	0mm to 0.25mm	9.95mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
12mm	M10	9.7mm	0mm to 0.25mm	11.96mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
16mm	M12	11.65mm	0mm to 0.25mm	15.5mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
20mm	M16	15.5mm	0mm to 0.25mm	19.93mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
0.025" Thick. (-0.0015" to 0.0015" Tolerance)
8mm	M6	5.92mm	0mm to 0.25mm	7.95mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
10mm	M8	7.82mm	0mm to 0.25mm	9.95mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
12mm	M10	9.7mm	0mm to 0.25mm	11.96mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
16mm	M12	11.65mm	0mm to 0.25mm	15.5mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	5	000000000	0000
20mm	M16	15.5mm	0mm to 0.25mm	19.93mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	5	000000000	00000
0.03" Thick. (-0.003" to 0.003" Tolerance)
1/4"	No. 10	0.171"	0" to 0.011"	0.241"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	0000
5/16"	1/4"	0.234"	0" to 0.011"	0.303"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	0000
3/8"	5/16"	0.289"	0" to 0.011"	0.365"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
1/2"	3/8"	0.352"	0" to 0.011"	0.491"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	25	000000000	00000
5/8"	1/2"	0.473"	0" to 0.011"	0.616"	-0.002" to 0.002"	Rockwell B70	May Be Mildly Magnetic	10	000000000	0000
0.031" Thick. (-0.002" to 0.002" Tolerance)
8mm	M6	5.92mm	0mm to 0.25mm	7.95mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
10mm	M8	7.82mm	0mm to 0.25mm	9.95mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
12mm	M10	9.7mm	0mm to 0.25mm	11.96mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	10	000000000	00000
16mm	M12	11.65mm	0mm to 0.25mm	15.5mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	5	000000000	00000
20mm	M16	15.5mm	0mm to 0.25mm	19.93mm	-0.25mm to 0mm	Rockwell C40	May Be Mildly Magnetic	5	000000000	00000

1074-1095 Spring Steel

0.005" Thick. (-0.0005" to 0.0005" Tolerance)
For Shoulder Dia.	For Screw Size	ID	ID Tolerance	OD	OD Tolerance	Min. Hardness	Magnetic Properties	Pkg. Qty.		Pkg.
3/16"	No. 8	0.146"	0" to 0.011"	0.185"	-0.002" to 0.002"	Rockwell C40	Magnetic	10	000000000	00000
1/4"	No. 10	0.171"	0" to 0.011"	0.248"	-0.002" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000
5/16"	1/4"	0.234"	0" to 0.011"	0.308"	-0.002" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000
3/8"	5/16"	0.289"	0" to 0.011"	0.371"	-0.002" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000
1/2"	3/8"	0.352"	0" to 0.011"	0.496"	-0.002" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000
5/8"	1/2"	0.473"	0" to 0.011"	0.621"	-0.002" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000
3/4"	5/8"	0.598"	0" to 0.011"	0.746"	-0.002" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000
5mm	M4	3.98mm	0mm to 0.254mm	5mm	-0.254mm to 0mm	Rockwell C40	Magnetic	5	000000000	00000
6mm	M5	4.976mm	0mm to 0.254mm	6mm	-0.254mm to 0mm	Rockwell C40	Magnetic	5	000000000	00000
8mm	M6	5.852mm	0mm to 0.254mm	8mm	-0.254mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
10mm	M8	7.688mm	0mm to 0.254mm	10mm	-0.254mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
12mm	M10	9.522mm	0mm to 0.254mm	12mm	-0.254mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
0.015" Thick. (-0.001" to 0.001" Tolerance)
5mm	M4	3.98mm	0mm to 0.254mm	5mm	-0.254mm to 0mm	Rockwell C40	Magnetic	5	000000000	00000
6mm	M5	4.976mm	0mm to 0.254mm	6mm	-0.254mm to 0mm	Rockwell C40	Magnetic	5	000000000	00000
8mm	M6	5.852mm	0mm to 0.254mm	8mm	-0.254mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
10mm	M8	7.688mm	0mm to 0.254mm	10mm	-0.254mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
12mm	M10	9.522mm	0mm to 0.254mm	12mm	-0.254mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
16mm	M12	11.355mm	0mm to 0.254mm	16mm	-0.254mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
0.015" Thick. (-0.00075" to 0.00075" Tolerance)
1/4"	No. 10	0.171"	0" to 0.011"	0.248"	-0.002" to 0.002"	Rockwell C40	Magnetic	50	000000000	00000
5/16"	1/4"	0.234"	0" to 0.011"	0.308"	-0.002" to 0.002"	Rockwell C40	Magnetic	50	000000000	00000
3/8"	5/16"	0.289"	0" to 0.011"	0.371"	-0.002" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000
1/2"	3/8"	0.352"	0" to 0.011"	0.496"	-0.002" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000
5/8"	1/2"	0.473"	0" to 0.011"	0.621"	-0.002" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000
3/4"	5/8"	0.598"	0" to 0.011"	0.746"	-0.002" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000
0.031" Thick. (-0.002" to 0.002" Tolerance)
8mm	M6	5.852mm	0mm to 0.254mm	8mm	-0.254mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
10mm	M8	7.688mm	0mm to 0.254mm	10mm	-0.254mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
12mm	M10	9.522mm	0mm to 0.254mm	12mm	-0.254mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
16mm	M12	11.355mm	0mm to 0.254mm	16mm	-0.254mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
20mm	M16	15.19mm	0mm to 0.254mm	20mm	-0.254mm to 0mm	Rockwell C40	Magnetic	5	000000000	0000
0.032" Thick. (-0.0015" to 0.0015" Tolerance)
1/4"	No. 10	0.187"	0" to 0.011"	0.248"	-0.002" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000
5/16"	1/4"	0.234"	0" to 0.011"	0.308"	-0.002" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000
3/8"	5/16"	0.296"	0" to 0.011"	0.371"	-0.002" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000
1/2"	3/8"	0.352"	0" to 0.011"	0.496"	-0.002" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000
5/8"	1/2"	0.473"	0" to 0.011"	0.621"	-0.002" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000
3/4"	5/8"	0.598"	0" to 0.011"	0.746"	-0.002" to 0.002"	Rockwell C40	Magnetic	25	000000000	00000

Shim Assortments for Lengthening Shoulder Screws

Spin these tight-fitting shims onto your screw's threads to lengthen the shoulder. Made from 1074-1095 steel, they have good hardness, resist wear, and hold their shape under stress.

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

1074-1095 Spring Steel
Number of Pieces	Thicknesses Included	For Shoulder Dia.	Container Type		Each
270	0.005", 0.015", 0.032"	1/4", 5/16", 3/8", 1/2", 5/8", 3/4"	Plastic Box	000000000	0000000
300	0.015"	1/4", 5/16", 3/8", 1/2", 5/8", 3/4"	Plastic Box	000000000	000000

Shim Assortments for Shortening Shoulder Screws

Slide onto a shoulder screw to shorten the length of the shoulder. Made from 1074-1095 steel, these shims have good hardness, resist wear, and hold their shape under stress.

1074-1095 Spring Steel
Number of Pieces	Thicknesses Included	For Shoulder Dia.	Container Type		Each
270	0.005", 0.015", 0.032"	1/4", 5/16", 3/8", 1/2", 5/8", 3/4"	Plastic Box	000000000	0000000