Stainless Steel Locknut (Priced Per Pkg of 5) 

Key Features:

• Package of 6

Additional Details:

• Material: Stainless Steel w/ nylon insert
• Thread Size: 7/16" or 11.1mm - 20
• For: MR/Alpha
• For: MCM inner transom studs and prop nut for Mercury 39, 60 (1968 & newer, 8 spline)

Interchanges/Replaces

GLM

• 21170

Mallory

• 9-72004
• 9-72004-10

Mercruiser Stern Drive

• 11-21298
• 11-22178
• 11-24648
• 11-29241
• 11-33962
• 11-34933
• 11-82671015

Mercury Marine

• 11-134391
• 11-22178
• 11-34933
• 11-46355
• 11-82671015
• 11-859116
• 11-95702