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
