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Set screw, hex socket, cup point
ISO 4029, acid-resisting steel A4, 21H, uncoated
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Variants
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The hardness class 21H is equivalent to hardness 210 HV
Tip:
A2/A4 stainless steel set screws are not specially hardened and may be used for tensile loads.
ISO 4029 replaces DIN 916 | There are some consistencies | Nominal diameters for M1.4, M1.8, M14, M18, and M22 are removed | Hardness classes for stainless steels introduced.
Select RAL-colour code
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