Factory Wholesale High Quality GB/T 1228 Class 10.9 High Strength Bolts Large Hexagon Head Steel Structures Black Hex Bolts

High strength bolt with large hexagon head hexagon nuts and plain washer for steel structures Name High strength bolts with large hexagon head for steel structures High strength bolt with large hexagon head hexagon nuts and plain washer for steel structures Key High strength bolt large hexagon head bolt bolt for steel structure Standard GB/T 1228/1229/1230 DIN 6914/6915/6916 ASME/ANSI B18.2.6 Size M16～M30 M16～M30 5/8～1-1/4 Length 50mm～250mm Grade 10.9S Material 40Cr/35CrMoA/20MnTiB/35VB Surface black, zinc plated, color zinc, hot dipped galvanized, dacromet Scope of application It is suitable for the construction technology of large hexagon high strength bolt connection in steel structure installation project. Form a complete set of Large hexagon head high strength bolts, nuts and washers one bolt, one nut, two plain washers Construction operation technology Operation preparation → joint assembly → installation of temporary bolts → installation of high-strength bolts → fastening of high-strength bolts → inspection and acceptance Keywords: High strength bolts with large hexagon head for steel structures