Hex nuts are standard fastening components designed to be tightened using a wrench or box wrench. They are widely used in combination with bolts, screws, or threaded rods to securely fasten parts in mechanical, structural, and industrial assemblies. Due to their six-sided shape, hex nuts allow efficient torque application and easy installation or removal, even in confined spaces.
There are three main types of hex nuts—Type 1, Type 2, and Type 3—each suited to different application requirements. Type 1 is the most commonly used and is generally what is referred to as a “hex nut.” Type 1 nuts are chamfered on one side, while Type 2 nuts are chamfered on both sides, making them easier to install from either direction. Type 3 hex nuts are thinner and are typically used where space constraints or weight reduction are important.
Hex nuts are available in a variety of materials and surface finishes to match different operating environments:
These options help improve corrosion resistance, durability, and suitability for indoor or outdoor use.