Seachoice RP-MP1337SC Stainless Steel Nylon Insert Locknut 3/8"-16

The Seachoice RP-MP1337SC is a corrosion-resistant stainless steel locknut featuring a nylon insert for secure fastening in marine environments. The 3/8"-16 thread size makes it compatible with standard bolts and threaded rods commonly used in boat hardware installations.

Key Features:

• Stainless steel construction resists rust and corrosion in saltwater conditions
• Nylon insert provides vibration-resistant locking action without thread damage
• 3/8"-16 thread size fits standard marine hardware applications
• Reusable design maintains locking capability through multiple installations
• Packaged 2 per bag for convenient replacement and repairs

Nylon insert locknuts are essential for marine applications where vibration and movement can loosen standard nuts over time. The nylon insert grips the bolt threads to prevent backing off while still allowing removal when needed. Ideal for securing deck hardware, railings, electronics mounts, and other boat components exposed to constant motion and harsh marine conditions.