... .ISO9000, CE, BS1139, EN74 2.Name:Lock pin, Washer plate, Wing nut, Base plate, Insert 3.Type:Pressed, forged 4.HDG ... you various scaffold accessories, including base plate, screw jack base,wing nut, washer plate, inner joint pin, jack nut, lock pin ... and steel panel. we can design and produce them according to customer request or drawing, if ...