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Steel Hex Nut, Zinc Plated Finish, Grade 2, Self-Locking Nylon Insert, Right Hand Threads, 3/8"-16 Threads, 0.622" Width Across Flats (Pack of 100)

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Product Specifications
Number of Items
Overall Height
0.453  inches
Overall Width
0.622  inches
Self Locking Mechanism
Nylon Insert
Size Name
Thread Size
Specification for this product family (See all  products)
Material Type
Carbon Steel
Part Number
Brand Name
Small Parts
Manufacturer Series Number
Exterior Finish
Zinc Plated
Manufacturer Grade
Thread Style
Right Hand
Special Features
Nylon Insert
System of Measurement

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Key Features

  • Hex nut tightens from the side with a wrench, enabling use when there is limited space above the nut
  • Self-locking nylon insert helps prevent loosening when nut is threaded to another component
  • Grade 2 steel is often used in applications where toughness is the primary consideration
  • Zinc plating resists corrosion and has a reflective appearance

Package Details

Shipping Weight: 1.7 pounds
Package Size: 5.2 x 2.7 x 0.4 inches

Product Description

The grade 2 steel hex nut has a self-locking nylon insert design and a zinc plating. It has six flat sides that a wrench can grip to turn from the side, enabling use when there is no space above the nut. It has a self-locking nylon insert to help prevent loosening when the nut is threaded to another component. Grade 2 steel, composed of either low or medium carbon steel, is often used in applications where toughness is the primary consideration. The zinc plating offers corrosion resistance and has a reflective appearance.

Nuts are internally threaded fasteners that are used with bolts and threaded rods and studs to connect components. Several different nut styles fit a variety of application and installation requirements. Some styles, such as hex nuts, acorn nuts, flange nuts, and coupling nuts, must be tightened with a tool. Others, such as eye nuts, thumb nuts, and wing nuts, can be tightened by hand. Some nuts have a self-locking mechanism, such as a nylon patch or distorted threads, that makes them suitable for applications with a high amount of vibration.

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