0.312" Shims | McMaster-Carr

Clear All

	System of Measurement System of Measurement

	For Screw Size For Screw Size

	Material Material

Stainless Steel

	Finish Finish

Hot-Dipped Galvanized

Zinc Yellow-Chromate Plated

Zinc-Aluminum Coated

	ID ID

	OD OD

	Washer Type Washer Type

	Split Lock

	Thickness Thickness	Show

	Thickness Thickness	Hide

0.001" to 0.003"

0.002" to 0.004"

0.004" to 0.006"

0.005" to 0.006"

0.005" to 0.024"

0.005" to 0.030"

0.008" to 0.012"

0.008" to 0.020"

0.009" to 0.012"

0.010" to 0.013"

0.010" to 0.015"

0.010" to 0.016"

0.010" to 0.020"

0.010" to 0.030"

0.010" to 0.040"

0.012" to 0.018"

0.013" to 0.017"

0.013" to 0.019"

0.013" to 0.020"

0.013" to 0.027"

0.014" to 0.016"

0.014" to 0.018"

0.014" to 0.020"

0.014" to 0.033"

0.015" to 0.017"

0.015" to 0.018"

0.015" to 0.019"

0.015" to 0.023"

0.015" to 0.025"

0.016" to 0.018"

0.016" to 0.020"

0.016" to 0.021"

0.016" to 0.022"

0.016" to 0.025"

0.017" to 0.021"

0.017" to 0.023"

0.017" to 0.028"

0.018" to 0.022"

0.018" to 0.023"

0.018" to 0.024"

0.018" to 0.032"

0.018" to 0.039"

0.019" to 0.021"

0.020" to 0.024"

0.020" to 0.025"

0.020" to 0.026"

0.020" to 0.027"

0.020" to 0.030"

0.020" to 0.040"

0.020" to 0.042"

0.020" to 0.060"

0.021" to 0.041"

0.022" to 0.028"

0.022" to 0.032"

0.022" to 0.042"

0.023" to 0.027"

0.023" to 0.028"

0.023" to 0.033"

0.024" to 0.032"

0.024" to 0.034"

0.024" to 0.036"

0.024" to 0.038"

0.024" to 0.039"

0.025" to 0.031"

0.025" to 0.035"

0.025" to 0.039"

0.025" to 0.040"

0.025" to 0.045"

0.026" to 0.036"

0.026" to 0.038"

0.027" to 0.031"

0.027" to 0.033"

0.027" to 0.035"

0.027" to 0.037"

0.027" to 0.048"

0.028" to 0.034"

0.028" to 0.035"

0.028" to 0.036"

0.028" to 0.046"

0.029" to 0.032"

0.029" to 0.033"

0.029" to 0.034"

0.029" to 0.035"

0.029" to 0.039"

0.029" to 0.043"

0.030" to 0.034"

0.030" to 0.040"

0.030" to 0.045"

0.030" to 0.050"

0.030" to 0.055"

0.030" to 0.065"

0.030" to 0.070"

0.031" to 0.033"

0.031" to 0.062"

0.032" to 0.040"

0.033" to 0.037"

0.033" to 0.043"

0.033" to 0.047"

0.033" to 0.057"

0.034" to 0.044"

0.034" to 0.060"

0.035" to 0.045"

0.035" to 0.055"

0.035" to 0.070"

0.036" to 0.042"

0.036" to 0.044"

0.036" to 0.045"

0.036" to 0.060"

0.036" to 0.065"

0.037" to 0.041"

0.037" to 0.043"

0.037" to 0.045"

0.037" to 0.049"

0.038" to 0.048"

0.040" to 0.050"

0.040" to 0.054"

0.040" to 0.060"

0.040" to 0.080"

0.041" to 0.051"

0.041" to 0.053"

0.041" to 0.061"

0.042" to 0.050"

0.042" to 0.051"

0.042" to 0.052"

0.042" to 0.054"

0.043" to 0.047"

0.043" to 0.051"

0.043" to 0.053"

0.043" to 0.057"

0.044" to 0.051"

0.044" to 0.052"

0.045" to 0.055"

0.045" to 0.057"

0.045" to 0.065"

0.046" to 0.054"

0.046" to 0.055"

0.046" to 0.078"

0.047" to 0.052"

0.047" to 0.053"

0.047" to 0.055"

0.047" to 0.077"

0.047" to 0.109"

0.048" to 0.052"

0.048" to 0.054"

0.048" to 0.058"

0.048" to 0.075"

0.049" to 0.055"

0.049" to 0.061"

0.049" to 0.068"

0.049" to 0.069"

0.050" to 0.060"

0.050" to 0.070"

0.050" to 0.080"

0.051" to 0.070"

0.051" to 0.075"

0.051" to 0.080"

0.051" to 0.084"

0.051" to 0.104"

0.052" to 0.058"

0.052" to 0.060"

0.052" to 0.072"

0.053" to 0.065"

0.053" to 0.071"

0.053" to 0.073"

0.054" to 0.068"

0.054" to 0.070"

0.054" to 0.073"

0.054" to 0.074"

0.055" to 0.065"

0.055" to 0.069"

0.055" to 0.070"

0.055" to 0.072"

0.055" to 0.085"

0.056" to 0.062"

0.056" to 0.070"

0.056" to 0.071"

0.057" to 0.067"

0.057" to 0.069"

0.057" to 0.075"

0.058" to 0.064"

0.058" to 0.068"

0.058" to 0.070"

0.059" to 0.065"

0.059" to 0.067"

0.059" to 0.069"

0.059" to 0.071"

0.060" to 0.064"

0.060" to 0.066"

0.060" to 0.067"

0.060" to 0.070"

0.060" to 0.080"

0.060" to 0.090"

0.060" to 0.100"

0.061" to 0.063"

0.062" to 0.064"

0.062" to 0.067"

0.062" to 0.077"

0.064" to 0.076"

0.064" to 0.080"

0.064" to 0.083"

0.064" to 0.094"

0.064" to 0.104"

0.065" to 0.075"

0.068" to 0.078"

0.068" to 0.088"

0.068" to 0.095"

0.070" to 0.076"

0.070" to 0.090"

0.071" to 0.084"

0.071" to 0.085"

0.071" to 0.091"

0.072" to 0.082"

0.073" to 0.078"

0.073" to 0.083"

0.073" to 0.085"

0.074" to 0.082"

0.074" to 0.086"

0.074" to 0.094"

0.074" to 0.121"

0.075" to 0.081"

0.075" to 0.082"

0.075" to 0.119"

0.075" to 0.202"

0.076" to 0.080"

0.077" to 0.087"

0.078" to 0.097"

0.078" to 0.108"

0.079" to 0.098"

0.079" to 0.099"

0.080" to 0.099"

0.080" to 0.100"

0.080" to 0.110"

0.080" to 0.115"

0.081" to 0.093"

0.081" to 0.101"

0.081" to 0.105"

0.082" to 0.098"

0.083" to 0.097"

0.083" to 0.103"

0.084" to 0.097"

0.084" to 0.102"

0.084" to 0.104"

0.084" to 0.114"

0.085" to 0.095"

0.085" to 0.096"

0.085" to 0.101"

0.085" to 0.102"

0.086" to 0.116"

0.086" to 0.132"

0.087" to 0.099"

0.088" to 0.098"

0.089" to 0.099"

0.090" to 0.108"

0.090" to 0.110"

0.090" to 0.112"

0.090" to 0.114"

0.090" to 0.115"

0.090" to 0.119"

0.090" to 0.120"

0.090" to 0.134"

0.090" to 0.160"

0.091" to 0.099"

0.092" to 0.112"

0.093" to 0.103"

0.093" to 0.104"

0.093" to 0.107"

0.094" to 0.114"

0.094" to 0.115"

0.094" to 0.116"

0.094" to 0.119"

0.094" to 0.156"

0.095" to 0.101"

0.097" to 0.117"

0.097" to 0.121"

0.097" to 0.177"

0.098" to 0.106"

0.098" to 0.120"

0.099" to 0.116"

0.099" to 0.119"

0.099" to 0.120"

0.099" to 0.129"

0.100" to 0.116"

0.100" to 0.180"

0.102" to 0.116"

0.104" to 0.111"

0.104" to 0.114"

0.104" to 0.116"

0.104" to 0.124"

0.104" to 0.180"

0.105" to 0.115"

0.105" to 0.130"

0.105" to 0.135"

0.108" to 0.150"

0.108" to 0.160"

0.110" to 0.126"

0.110" to 0.130"

0.110" to 0.140"

0.112" to 0.128"

0.112" to 0.138"

0.112" to 0.139"

0.113" to 0.137"

0.113" to 0.143"

0.115" to 0.130"

0.115" to 0.135"

0.118" to 0.132"

0.120" to 0.130"

0.120" to 0.140"

0.120" to 0.141"

0.120" to 0.159"

0.120" to 0.171"

0.120" to 0.187"

0.122" to 0.138"

0.122" to 0.146"

0.122" to 0.177"

0.123" to 0.128"

0.126" to 0.133"

0.126" to 0.220"

0.126" to 0.240"

0.127" to 0.141"

0.130" to 0.140"

0.130" to 0.150"

0.130" to 0.151"

0.131" to 0.145"

0.133" to 0.147"

0.136" to 0.152"

0.136" to 0.160"

0.136" to 0.161"

0.136" to 0.177"

0.136" to 0.192"

0.136" to 0.213"

0.140" to 0.170"

0.142" to 0.149"

0.142" to 0.230"

0.142" to 0.240"

0.142" to 0.260"

0.146" to 0.162"

0.146" to 0.166"

0.146" to 0.174"

0.146" to 0.177"

0.150" to 0.220"

0.151" to 0.161"

0.153" to 0.167"

0.153" to 0.213"

0.156" to 0.188"

0.156" to 0.189"

0.158" to 0.165"

0.158" to 0.240"

0.158" to 0.260"

0.158" to 0.270"

0.158" to 0.280"

0.163" to 0.181"

0.167" to 0.192"

0.167" to 0.193"

0.168" to 0.191"

0.168" to 0.192"

0.168" to 0.193"

0.170" to 0.190"

0.170" to 0.195"

0.170" to 0.200"

0.175" to 0.201"

0.177" to 0.187"

0.177" to 0.197"

0.178" to 0.196"

0.178" to 0.280"

0.180" to 0.194"

0.182" to 0.202"

0.183" to 0.193"

0.185" to 0.195"

0.190" to 0.208"

0.193" to 0.203"

0.193" to 0.248"

0.198" to 0.218"

0.198" to 0.223"

0.198" to 0.233"

0.199" to 0.224"

0.200" to 0.220"

0.200" to 0.222"

0.203" to 0.213"

0.206" to 0.229"

0.210" to 0.280"

0.219" to 0.243"

0.220" to 0.240"

0.220" to 0.280"

0.225" to 0.265"

0.226" to 0.236"

0.228" to 0.310"

0.228" to 0.320"

0.230" to 0.255"

0.230" to 0.270"

0.234" to 0.266"

0.235" to 0.245"

0.235" to 0.255"

0.235" to 0.264"

0.235" to 0.265"

0.236" to 0.264"

0.238" to 0.263"

0.240" to 0.260"

0.240" to 0.272"

0.240" to 0.340"

0.245" to 0.255"

0.249" to 0.327"

0.250" to 0.270"

0.260" to 0.280"

0.261" to 0.286"

0.265" to 0.290"

0.270" to 0.290"

0.271" to 0.291"

0.281" to 0.343"

0.293" to 0.318"

0.297" to 0.328"

0.298" to 0.308"

0.298" to 0.328"

0.302" to 0.332"

0.302" to 0.335"

0.303" to 0.323"

0.308" to 0.318"

0.330" to 0.350"

0.340" to 0.360"

0.355" to 0.380"

0.359" to 0.391"

0.360" to 0.380"

0.360" to 0.390"

0.365" to 0.385"

0.365" to 0.397"

0.428" to 0.448"

0.460" to 0.480"

0.469" to 0.531"

0.475" to 0.525"

0.481" to 0.519"

0.485" to 0.515"

0.15 to 0.25 mm

0.203 to 0.508mm

0.220 to 0.420mm

0.25 to 0.35 mm

0.35 to 0.45 mm

0.45 to 0.55 mm

1.168 to 1.981mm

1.190 to 1.950mm

1.2 to 1.750 mm

1.320 to 1.820mm

1.600 to 2.360mm

3.200 to 5.500mm

4.0 to 5.100 mm

4.0 to 7.500 mm

4.5 to 5.100 mm

4.8 to 7.500 mm

5.970 to 6.730mm

	Hardness Hardness

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

DFARS Specialty Metals
COTS-Exempt

DFARS Specialty Metals
Compliant

	Specifications Met Specifications Met

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

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

REACH Compliant

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About Washers

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Split Lock Washers

As a screw is tightened, these washers 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.

316 stainless steel washers have excellent resistance to chemicals and salt water. They may be mildly magnetic.

18-8 stainless steel washers have good chemical resistance and may be mildly magnetic.

Zinc- and zinc yellow-chromate plated steel washers are corrosion resistant in wet environments.

Hot-dipped galvanized steel washers are 10 times as corrosion resistant as zinc- and zinc yellow-chromate plated washers.

Zinc-aluminum-coated steel washers are 40 times as corrosion resistant as zinc-plated washers and comparable to Magni-coated washers.

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 Carbon Steel
For Screw Size	ID	OD	Thick.	Hardness	Specifications Met	Pkg. Qty.		Pkg.
1 1/4"	1.280"	2.036"	0.312"	Rockwell C38	ASME B18.21.1	1	00000000	00000
316 Stainless Steel
1 1/4"	1.280"	2.036"	0.312"	Rockwell C35	ASME B18.21.1	1	000000000	0000
18-8 Stainless Steel
1 1/4"	1.280"	2.036"	0.312"	Rockwell C35	ASME B18.21.1	1	000000000	0000
Zinc-Plated Steel
1 1/4"	1.280"	2.036"	0.312"	Rockwell C38	ASME B18.21.1	5	000000000	00000
Hot-Dipped Galvanized Steel
1 1/4"	1.280"	2.036"	0.312"	Rockwell C38	ASME B18.21.1	5	000000000	00000
Zinc-Aluminum Coated Carbon Steel
1 1/4"	1.280"	2.036"	0.312"	Rockwell C38	ASME B18.21.1	1	00000000	00000
Steel
1 1/4"	1.280"	2.036"	0.312"	Rockwell C38	ASME B18.21.1	10	000000000	00000

Mil. Spec. Split Lock Washers

Choose these washers for their adherence to strict military standards for material and construction. As a screw is tightened, they flatten to add tension to the joint and prevent loosening from small amounts of vibration.

18-8 stainless steel washers have excellent corrosion resistance in most environments. They may be mildly magnetic.

Passivated stainless steel washers have added protection against oxidation and corrosion. Cadmium- and zinc yellow-chromate plated steel washers are corrosion resistant in wet environments.

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

Passivated 18-8 Stainless Steel
For Screw Size	ID	OD	Thick.	Hardness	Specifications Met	Pkg. Qty.		Pkg.
MS35338
1 1/4"	1.254"	2.036"	0.312"	Rockwell C35	ASME B18.21.1; MS35338-150	1	000000000	00000
Zinc Yellow-Chromate Plated Steel
MS35338
1 1/4"	1.254"	2.036"	0.312"	Rockwell C38	ASME B18.21.1; MS35338-55	2	000000000	0000

The quick brown fox jumped over the lazy dog. Pedestal (35" Ht. x 4" Wd. x 4" Dp.)