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“SV” marking Class 12.9
Hexagon Socket Head Cap Screws
DIN912/ISO4762/JIS1176/GB70.1
Complete Sizes (dia.: M3~M42)
Product properties:
1. Material: Alloy steel SCM435/SCM440/AISI4140
2. Finish: Gas blackening, smooth surface
3. Thread: Go/No Go Gauge test
4. Certificate: With full mechanical properties test