#014544 Spec Diameter Thread Threads Length Grade Finish Weight 0.3125 (5/16) Full 18 1.125 (1 1/8) Grade 8 Plain Finish .0309 Diameter 0.3125 (5/16) Thread 18 Length 1.125 (1 1/8) Grade Grade 8 Finish Plain Finish Weight .0309 Need Something Custom?