Hex Washer Head
300 series Austenitic stainless body.
High Anti-Corrosion.
SCM435 alloy steel drilling point
Class 12.9 high tensile steel
Superior drilling performance.
Partial heat treatment.
Surface:White Zinc Rustpert Zinc-Tin coating
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M5.5 × 25#12-14 × 1
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M5.5 × 32#12-14 × 1-1/4
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M5.5 × 38#12-14 × 1-1/2