PTFE coated ASTM A193 B7M Stud bolt with 2 A194 2HM hex nuts ASTM A193 B7 Stud Bolt / PTFE Coated A193 B7M stud bolt PTFE is short for&nb […] PTFE coated ASTM A193 B7M Stud bolt with 2 A194 2HM hex nuts Read More »PTFE Coated A193 B7M stud bolt