NINGBO STEEL BOLT CO.,LTD is a professional fasteners factory from Ningbo,China and specilize in produce Bolts and Nuts. Our factory have many yearsexperiences of produce Nuts and Bolts.Bolts: Hex Bolts, Heavy Hex Bolts, Structural Bolts, Carriage Bolts, Hex Flange Bolts, Hex Head Bolts, Square head bolts, Round Head Bolts, Wedge Anchor Bolts, Track Bolts, T-head Bolts, Pan Bolts, Bent bolt, Elevator bolts, Wing bolts, Wheel Bolts, Allen Bolts, Eye Bolts, J Anchor bolts, L Anchor bolts, U boltsNuts: Hex Nuts, Heavy Hex Nuts, Structural Nuts, Flange Nuts, Slotted Nuts, Stainless Steel Nuts, Square Nuts, Spring Nuts, Jam Nuts, Nylon Insert Nuts, Cap Nuts, Furniture Nuts, Coupling Nuts, Spring Nuts, Wheel Nuts, Cage Nuts, Rivet Nuts, Castle Nuts, Wing Nuts, Press Nuts, Weld NutsScrews: Hex Cap Screws, Socket Head Cap Screws, Flange 12-point Screws, Wood Screws, Press Screws, Machine Screws, Drilling Screws, Tapping ScrewsStuds: All Threaded Studs, Double End Studs, Tap End Studs, Shear Welding StudsThreaded rods: Carbon Steel Threaded Rod, Alloy Steel Threaded Rod, Stainless Steel Threaded Rod, Galvanized Threaded RodWashers: Flat Washers, Lock Washers, Spring Washers, Copper Washers, Fender Washers, Stainless Steel Washers, SAE Washers, Square washers, Self-Lock WashersThe Ningbo Steel Bolt Co., Ltd specializes in producing Nuts and Bolts for many years, so our technology is at the High-class level in this industry and our products have fine workmanship. The Ningbo Bolt major products as follows,BOLTS :ASTM A325/A325M TYPE 1 HEAVY HEX STRUCTURAL BOLTSASTM A490/A490M TYPE 1 HEAVY HEX STRUCTURAL BOLTSASTM A193 GRADE B7/B7M HEAVY HEX BOLTSSAE J429 GRADE 2/5/8/9 HEX BOLTS/HEX CAP SCREWSDIN 6914 CLASS 8.8/10.9/12.9 STRUCTURAL BOLTSDIN 6914 CLASS 8.8/10.9/12.9 STRUCTURAL BOLTSDIN 931 933 CLASS 4.8/6.8/8.8/10.9/12.9 HEX BOLTSDIN 912 CLASS 8.8/10.9/12.9 HEXAGON SOCKET HEAD CAP SCREWSDIN 7991 CLASS 8.8/10.9/12.9 HEX SOCKET COUNTERSUNK HEAD CAP SCREWS