... EN74 2.Name:Lock pin, Washer plate, Wing nut, Base plate, Insert 3.Type:Pressed, forged 4.HDG, painted 1.IntroductionWe ... base plate, screw jack base,wing nut, washer plate, inner joint pin, jack nut, lock pin and steel panel. we ... accessories,frame system,scaffolding system...Material: Q235,Q345Size: CustomizedSurface: Self-colored,galvanized,hot dipped galvanized, painted5.Products picture show: