5/16 in. x 4 in. Hot-Dipped Galvanized Carriage Bolts (50-Pack)

Durable Hillman carriage bolts designed for fastening wood-to-wood or wood-to-metal with a smooth, dome head finish. Hot-dipped galvanized steel resists rust for long-lasting outdoor and structural applications.

Key Features:

• Rust-Resistant Protection: Hot-dipped galvanized steel stands up to moisture and outdoor exposure
• Secure Hold: Square neck locks into wood to prevent spinning during tightening
• Clean Finish: Round, low-profile head provides a semi-flush appearance without a washer
• Strong and Reliable: Grade 2 steel with coarse threads for general construction fastening
• Bulk Value: 50 bolts per box for projects and jobsite needs

Specifications Table:

Frequently Asked Questions (FAQ):

Q: What size are these carriage bolts?
A: They are 5/16 in. diameter by 4 in. length with coarse threads.

Q: What material and finish are used?
A: They are made of Grade 2 steel with a hot-dipped galvanized finish for corrosion resistance.

Q: Are nuts and washers included?
A: No, this listing is for bolts only; purchase matching 5/16 in. nuts and washers separately if needed.

Q: Where are these bolts typically used?
A: Ideal for fastening wood to wood or wood to metal in decks, fences, and general construction.

Q: How many come in the package?
A: 50 bolts per retail package.

A Clean, Crafted Finish for Outdoor Builds

The rounded carriage head delivers a neat, unobtrusive accent that lets the wood grain take center stage. I love the tactile, chalky sheen of hot-dipped galvanization—it feels honest and architectural. Use them in rhythmic rows along a fence or garden gate for subtle texture and cohesion. It’s the kind of quiet hardware that elevates everyday structures into refined, lasting design.

Choose these galvanized carriage bolts for a clean look and rust-proof strength on your next outdoor build.