1/4-20 Nylon Insert Hex Lock Nut Black Zinc, Pkg of 2000

External tooth lock nuts are nuts attached with lock washers typically used to help with convenience of assembly.

Jam Nuts provide durable low profile fasteners that are normally half the height of a standard nut, and are tightened against the work surface and used in situations where a standard nut would not fit. A jam nut can also be used with a hex nut to prevent it from loosening.

Flange nuts have a washered base in order to ensure fasteners remain firmly secure. The washered base helps to spread pressure to a larger surface area, ensuring a secure fit.

Grade 5 Hex Nuts are manufactured from carbon steel and are used to connect both metal and wood components. They are intended to be used in conjunction with bolts, screws, studs, threaded rod and any other fastener that has machine screw threads. Typical applications for Grade 5 Hex Nuts include scenarios where medium strength of 120,000 psi is required. They are manufactured to the SAE J995-2017 standard. Special Features: Grade 5 Medium Strength Applications: General Purpose

Jam Nuts provide durable low profile fasteners that are normally half the height of a standard nut, and are tightened against the work surface and used in situations where a standard nut would not fit. A jam nut can also be used with a hex nut to prevent it from loosening for long lasting reliability. Nuts are designed to be driven by wrench or pneumatic tools for ease of installation.