#487131 Spec Diameter Thread Threads Length Grade Finish Weight 0.5 (1/2) Partial 20 2.25 (2 1/4) Grade 8 Phos & Oil .1739 Diameter 0.5 (1/2) Thread 20 Length 2.25 (2 1/4) Grade Grade 8 Finish Phos & Oil Weight .1739 Need Something Custom?