Hex head fastener

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Hex head fasteners, also called hex head fasteners, hex bolts, hexagon screw head bolts, hex cap bolts, hex-cap screws, or machine bolts, are a very common type of fastener used in construction and repair. Hexagon head bolts come in a large variety of sizes and diameters

Hexagon head fasteners can be made from a variety of materials to accommodate the wide range of applications. Below are a few of the more common types of hexagon screw head bolts:

  • Stainless steel bolts: Common choice of hex screws since they don't need any coating and are corrosion resistant.
  • Carbon steel bolts: The most common hexagon screw head bolts are zinc plated for added corrosion resistance.
  • Alloy steel bolts: These types of hex bolts are made to withstand an enormous amount of pounds per square inch. They are coated with either cadmium or zinc plating to protect them against corrosion.

Hex bolts are typically available with partial (standard) threading or full threading, depending on the length of the bolt.