#821307 Spec Diameter Thread Threads Length Grade Finish Weight 0.375 (3/8) Partial 16 3.5 (3 1/2) Grade 8 Phos & Oil .1603 Diameter 0.375 (3/8) Thread 16 Length 3.5 (3 1/2) Grade Grade 8 Finish Phos & Oil Weight .1603 Need Something Custom?