Nylon Insert Locknut – Stainless 5/8-11

Secure your 5/8-11 threaded connections with this stainless nylon insert locknut designed to help resist loosening from vibration.

Key Features

• Stainless steel construction for corrosion resistance
• Nylon insert helps increase thread friction to reduce back-off
• Locknut style for more secure fastening on 5/8-11 coarse threads

Intended Use

• Marine and boating fastener connections subject to vibration
• General hardware fastening where a nylon-insert locknut is preferred
• Projects using 5/8-11 coarse threaded studs/bolts

Product Details

• Brand/Type: Nylon Insert Locknut (stainless)
• Thread size: 5/8-11
• Material: 18-8 stainless steel
• SKU/Item No.: 50-00631
• Package quantity: 10 per bag (as listed in Seachoice catalog for item 00631)

Parts Desk Insights

Best Use Case: Use on applications where vibration or movement can cause a standard nut to loosen, such as marine/boating hardware mounts and other secured threaded joints.

Common Issues: If the nut feels like it is not seating or engages inconsistently, verify the mating bolt/stud is truly 5/8-11 coarse and that the threads are clean. Also confirm the nylon insert is not damaged during installation.

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