#821538 Spec Diameter Thread Threads Length Grade Finish Weight 0.625 (5/8) Partial 18 2.5 (2 1/2) Grade 8 Zinc Yellow .317 Diameter 0.625 (5/8) Thread 18 Length 2.5 (2 1/2) Grade Grade 8 Finish Zinc Yellow Weight .317 Need Something Custom?