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The NE Series Nylon Insert Lock Nut — also referred to as a Nylok™ Nut, Stop Nut, Plastic Insert Lock Nut, Regular Series Nylon Lock Nut, Non-Metallic Insert Nut, Polyamide Lock Nut, or Nylon Insert Hex Nut — is a nut with many identities but designed with one purpose. The Nylon Insert Hex Nut is a top-lock style with an elastic nylon ring. This ring grabs onto the thread as it’s fastened — preventing the nut from loosening in vibrating applications. Earnest offers NE Series Nylon Insert Lock Nuts in 18/8 stainless steel (300 series), Grades A (2), B (5) and C (8).
Top-lock style with nylon ring
The nylon ring’s tensile strength, elastic recovery, chemical resistance, temperature resistance, and impact resistance enables Nylon Insert Lock Nuts to resist vibrations and impact forces while maintaining the applied preload on the fastener
Used in high-vibration applications
Sizes 1/4” to 1 1/2”
Meets ASME B18.16.6 (IFI 100/107) standards
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