Stainless Steel Locknut 5 Pk, 7/16" - 20

Stainless Steel Locknut. Material: Stainless Steel w/ nylon insert. Thread Size: 7/16" or 11.1mm – 20. Package of 5. For: MR/Alpha. For: MCM inner transom studs and prop nut for Mercury 39, 60 (1968 & newer, 8 spline). Material: Stainless Steel w/ nylon insert Thread Size: 7/16" or 11.1mm - 20 Package of 5 Meets or exceeds OEM recommended specifications Backed by Sierra's limited lifetime warranty