bolts carbon fabrication fasteners job nut standard steel structural weld FASTENER DIAMETERS Minimum bolt diameters are 1⁄2 in for buildings and railroad bridges. In highway-bridge members carrying calculated stress, 3⁄4...
bolts carbon fabrication fasteners job nut standard steel structural weld HIGH-STRENGTH BOLTS, NUTS, AND WASHERS For general purposes, A325 and A490 high-strength bolts may be specified. Each type of bolt can be identified by the ASTM designation ...
bolts carbon fabrication fasteners job nut standard steel structural weld LIMITATIONS ON USE OF FASTENERS AND WELDS Structural steel fabricators prefer that job specifications state that ‘‘shop connections shall be made with bolts or welds’’ rather th...