#487181 Spec Diameter Thread Threads Length Grade Finish Weight 12 (12) Partial 1.75 50 (50) ISO 10.9 Phos & Oil .1343 Diameter 12 (12) Thread 1.75 Length 50 (50) Grade ISO 10.9 Finish Phos & Oil Weight .1343 Need Something Custom? Attributes Need Something Custom? ISO 10.9