#822589 Spec Diameter Thread Threads Length Grade Finish Weight 0.3125 (5/16) Partial 18 2.75 (2 3/4) Grade 8 Phos & Oil .0628 Diameter 0.3125 (5/16) Thread 18 Length 2.75 (2 3/4) Grade Grade 8 Finish Phos & Oil Weight .0628 Need Something Custom?