Steel plain hex nuts are standard-profile fasteners designed for general-purpose fastening in a wide range of industrial, automotive, and construction applications. As the most common type of hex nut, they provide a strong, reliable internal thread for securing bolts and screws in structural and mechanical assemblies. The "plain" designation indicates that the carbon steel is raw and uncoated. This finish is specifically chosen for applications where the nut will be welded in place or where a custom secondary finish, such as paint or specialized plating, will be applied after the assembly is complete. While these nuts offer excellent structural strength and high torque capabilities, they lack inherent corrosion resistance. Consequently, they are best suited for dry, indoor environments or applications where they will be protected by lubrication or a final exterior coating to prevent oxidation.
Return Non-returnable
Thread
1 5/8"-5 1/2
Width
2 7/16
Metal Type
Steel
Shape
Fastener
Grade
Grade 2
Brand
K-Mac Distribution
Fastener Type
Hex Nut
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