Bolt Nut Washer

Bolts, nuts and washers are core fastener parts widely applied in bridges, tunnels, railways, new-energy facilities, steel structures and mechanical equipment. Our bolts include hex-head bolts, anchor bolts, segment bolts and custom non-standard bolts, with specifications from M6 to M100. Materials cover Q235, 35K, 45#, 40Cr, 35CrMo and stainless steel. Strength grades are available in 4.8, 8.8, 10.9 and 12.9. Matching hex nuts, lock nuts and heavy-duty nuts are supplied for reliable connection. Various washers, such as flat washers, spring washers and bevel washers, help spread pressure, protect surfaces and prevent loosening. Surface treatments include hot-dip galvanizing, zinc plating, Dacromet and black-oxide, to meet different anti-corrosion requirements. We provide in-stock standard products and drawing-based non-standard customization. Every batch passes strict mechanical performance tests to guarantee stable quality for long-term engineering service.