Structural and Miscellaneous Steel Page -4-3.1.11 Weldable steel stud connectors shall be of the automatic end-weld type conforming to AWS1.1 3.1.12 Pipe handrail shall conform to ASTM A120. 3.1.13 All high strength bolts shall be installed using the turn-of-nut method, calibrated wrench, or compressible washer