High Strength Hexagon Flange Bolts Red Nylok Screw

StandardGB16674.1,GB 5789 and so onTypeHEXAGON BOLTS WITH FLANGEMaterial10B21,40CrSurface finishZinc Plated, BlackeningShank DiameterM5, M6, M8, M10, M12Heat TreatmentHeat treatment with the material, and heat treatment with the productManufactruing ProcessWire Drawing, Cold Heading, Heat Treatment, Thread Rolling, Surface Plating, PackingLead Time10-30days, according to customer’s order qty and detailed requirementsPacking500-2000pieces in a Polybag, then into a carton box, finally into a pallet, or customized