Hex Lag Screws 5/16 In X 5 In Prime-Line A307 Grade A Zinc Plated Steel Heavy Duty Wood Screws With Hex Bolt Head And Deep Threads No Nut Needed Ideal For Decks And Load Bearing Wood Projects Pack Of 25

Heavy-Duty 5/16 in x 5 in Hex Lag Screws for Decks
✔️ Hex bolt head, deep threads, nut-free, zinc plated, 25-pack

These heavy-duty lag screws provide dependable, load-bearing fastening for wood projects. Sized 5/16 inch by 5 inches, they're ideal for decks, fences, handrails, and other outdoor structures where solid wood-to-wood joints are required. The hex bolt head allows easy wrench or socket drive, and no nut is needed for a secure connection. Each pack includes 25 screws, and the zinc plating helps resist corrosion in outdoor environments.

✅ Size: 5/16 in dia x 5 in length
✅ Head: six-sided hex bolt head for wrench or socket drive
✅ Thread: deep, coarse wood threads for strong grip
✅ Nut-free design, no nut required for wood-to-wood fastening
✅ Material/Finish: zinc plated steel for corrosion resistance
✅ Standards: ASME B18.2.1 and ASTM A307A
✅ Pack: 25 screws per pack
✅ Applications: decks, fencing, handrails, and outdoor structures

💡 What is a heavy lag screw used for in outdoor wood projects?

It’s handy for securing sturdy connections where you don’t want a nut.

- Handy for deck framing and fencing where solid wood-to-wood joints are needed

- Hex bolt head lets you drive with common tools without nuts

- Zinc plating protects against corrosion for outdoor use

- Deep threads bite into wood for reliable holding power