Button Head Socket Screws. M3, M4, M5, M6, M8. M4,M5,M6,M8 A2 Stainless Steel. Button head screws with Allen key drive socket. High Tensile Grade 10.9. M5,M6,M8,M10 A2. Bright Zinc Plated (BZP). Allen Key Size; 2mm.
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