Nylon Insert Locknuts Coarse Low Carbon Zinc CR + 3 (Standard)
Enhance fastening reliability with Nylon Insert Locknuts. Crafted from durable low carbon steel with a corrosion-resistant zinc CR+3 coating, these coarse-thread locknuts feature a secure nylon insert to prevent loosening from vibration. Ideal for automotive, industrial, and heavy-duty applications.
Description
Engineered for reliability and performance, our Nylon Insert Locknuts (Coarse Thread, Low Carbon Steel, Zinc CR+3) are a trusted fastening solution across a wide range of industrial and mechanical applications. These locknuts are designed to resist loosening under vibration and torque, making them ideal for use in automotive assemblies, machinery, and heavy-duty equipment.
Each locknut features a nylon insert that creates a secure, friction-based lock on the bolt threads. This insert not only prevents back-off during operation but also helps maintain consistent clamping force over time. Unlike all-metal locknuts, the nylon component provides a reusable locking mechanism without damaging mating threads—perfect for applications requiring periodic disassembly and reassembly.
Manufactured from durable low carbon steel and finished with a corrosion-resistant Zinc CR+3 plating, these locknuts offer enhanced protection against rust and wear in both indoor and outdoor environments. The CR+3 trivalent zinc coating is RoHS compliant, providing a more environmentally friendly alternative to traditional hexavalent finishes without compromising on performance.
Available in a wide range of diameters—from 1/4″-20 to 1-1/2″-6—our standard coarse thread locknuts are compatible with most common bolts and studs. Whether you’re securing wheels to axles, assembling structural frames, or maintaining industrial equipment, these locknuts deliver dependable holding power where it matters most.
Choose from multiple quantity options to suit your project needs, from small repair jobs to large-scale production runs
Additional information
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