Duramedal 160pcs M4 x 12mm Screws, Hex Socket Head Cap M4*12mm 160pcs, Black
Features strong fastening force, no easy loosening or slipping, and is compatible with various nuts and connectors. 200+ Hours Salt Spray Test Certified: Complies with ISO 9227:2022 (Neutral Salt Spray/NSS) standard, with corrosion resistance exceeding 200 hours.