M3 M4 M5 M6 M8. BOLTS / SCREWS. GRUB SCREWS. High quality Machine Screws made of A2 grade stainless steel and toDIN 965 standards. Grub Screws. All bolts are fully threaded. A2 Stainless Steel. Stainless Steel: Grade/Type A2 A2 A2 A2 A2.
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