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Flat Washers
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DIN 912 Hexagon Socket Head Cap Screws
DIN 912 ISO 4762 ANSI B18.3.1M Grade: 4.8, 8.8, 10.9 and 12.9.
DIN 603 - 2017 Cup Head Square Neck Bolts Specification for stainless steel round head square neck bolts (carriage bolts): German standard DIN603 Material: carbon steel, Q235, 45# steel, stainless steel Nominal diameter: 5mm--20mm Length: 15mm--300mm Surface treatment method: zinc plating, chrome plating, copper plating, surface blackening.
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