Comparison : Item # 1317-36-118, 1/8"-27 MPT 65 Degree Ball Check Grease Fitting Steel
Item # 1317-36-132, 1/4"-18 MPT 65 Degree Ball Check Grease Fitting Steel
Item # 1317-36-147, 1/4"-28 Tapered Thread 65 Degree Ball Check Grease Fitting Steel