#014560 Spec Diameter Thread Threads Length Grade Finish Weight 0.3125 (5/16) Partial 18 5.5 (5 1/2) Grade 8 Plain Finish .1267 Diameter 0.3125 (5/16) Thread 18 Length 5.5 (5 1/2) Grade Grade 8 Finish Plain Finish Weight .1267 Need Something Custom?