Our Hex Bolts in steel with a hot-dip galvanized (HDG) finish deliver reliable strength and outstanding corrosion resistance for outdoor and damp environments. Sized at 5/16-18 with a 1-inch length, these bolts are ideal for a wide range of structural and hardware applications.
Product Highlights
- Material: Steel with a hot-dip galvanized (HDG) finish for enhanced corrosion resistance.
- Size: 5/16-18 UNC threads, 1 inch long.
- Finish: Hot-dip galvanized to withstand outdoor and industrial environments.
- Head Type: Hex head for easy drive with standard wrenches or sockets.
- Applications: Suitable for construction, outdoor decking, fencing, and general hardware connections.
Specifications
- Diameter: 5/16 in
- Thread pitch: 18 threads per inch (UNC)
- Length: 1 in
- Finish: HDG (hot-dip galvanized)
- Material: Steel
For secure, lasting connections, pair these hex bolts with corresponding nuts and washers in both indoor and outdoor projects.
![[100 PKG] Hex Head Tap Bolts Fully Thread Grade 2 Steel Zinc Plated 1/4-20 X 1-1/4](https://www.nutfastener.com/wp-content/uploads/2026/09/30/1790749982/100-pkg-hex-head-tap-bolts-fully-thread-grade-2-steel-zinc-plated-1-4-20-x-1-1-4.webp)
![[100 PKG] Hex Bolts Steel HDG 5/16-18 X 1](https://www.nutfastener.com/wp-content/uploads/2026/09/30/1790749989/100-pkg-hex-bolts-steel-hdg-5-16-18-x-1.webp)
Unconditional Satisfaction Guarantee
