Hex Cap Screws are bolts 1/4" diameter and larger with a hex head and a washer face on the underside of the head.
Hexagonal (hex) socket head has a hexagonal hole and is driven by a Hex Wrench, sometimes called an Allen key or Hex key, or by a power tool with a hexagonal bit. Tamper-resistant versions with a pin in the recess are available. Hex sockets are increasingly used for modern bicycle parts because hex wrenches are very light and easily carried tools. They are also frequently used for self-assembled furniture.
The most common material types and strength that are used for hex head bolts are stainless steel, carbon steel, or alloy steel as noted below.
- Stainless steel bolts are an attractive choice because they don't need any
special coating to avoid corrosion.
- Carbon steel bolts are, however, the most common type that you will find in the average hardware store and are zinc plated in order to resist corrosion.
- The strength of carbon steel hex bolts typically
hovers around 55 ksi (kips, or 1,000 pounds per square inch).
- Alloy steel hex bolts are a type of high strength carbon steel bolt that can be made to
withstand up to 300 ksi. Such bolts are not inherently corrosion resistant, and
therefore must be coated to protect them. Cadmium or zinc is common types of
plating for such alloy bolts
Materials and Types of Hex Head Cap Screws manufactured and stocked. If your specific hex head cap screw is a different grade or type of screw that is not listed below, we will manufacturer to your requirements.
 Hex Bolts (Cap Screws) Grade 5 SST
Hex Bolts (Cap Screws) Grade 18-8 SST
Hex Bolts (Cap Screws) Grade 316 SST
Hex Bolts (Cap Screws) Grade A286 & Alloy
Hex Bolts (Cap Screws) Grade 8 SAE Fine
Metric Hex Bolts - (Hex head cap screws 8.8)
Metric Hex Bolts - (Hex head cap screws 10.9)
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