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Washer

May 08, 2025

Standard for Washer

Hardness

Material

Head Marking

ASME B18.22.1 USS

Low carbon steel

/

ASME B18.22.1 SAE

Low carbon steel

/

F436

zinc plated 38-45HRC, HDG 26-45HRC

45#+heattreatment

DIN125A

CLASS 140HV,140min HV;CL200HV,200-300HV;300HV,300-400HV.

Low carbon steel

DIN125B

Low carbon steel

DIN127A

C70 /65Mn

The JM Hardware® Cooperation Process for Custom Non-Standard
ASTM A193
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ASTM A193

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