5/16"-18 x 1-1/2" UNC Elevator Bolt
5/16"-18 x 1-1/2" UNC F835 BHCS
5/16"-18 x 1-1/2" UNC F912 S/S/S (Cup Pt)
5/16"-18 x 1-1/2" UNC F835 FHCS
5/16"-18 x 1-1/2" UNC A574 SHCS
5/16" x 1-1/2" UNC SHOULDER Bolt
5/16"-18 x 1-1/2" UNC Square S/S (Cup Pt) Case Hardened
5/16"-18 x 1-1/2" UNC Gr.2 Hex Bolt
5/16"-18 x 1-1/2" UNC Gr.5 Hex Bolt
5/8"-18 x 1-1/2" UNF A574 (1936) SHCS HRC 37-45
5/8"-18 x 1-1/2" UNF A574 SHCS
5/8"-18 x 1-1/2" UNF Gr.8 Hex Bolt