5/16"-18 Stainless Steel Carriage Bolts

Fully Threaded with Square Neck – Ideal for Wood-to-Wood Connections

Enhance your construction projects with our premium 5/16"-18 Stainless Steel Carriage Bolts. These bolts are fully threaded and feature a square neck, making them perfect for wood-to-wood connections. Crafted from high-quality A2 / 18-8 stainless steel, they offer excellent corrosion resistance and durability for long-lasting performance in various environments.

Key Features

• Diameter: 5/16 inch
• Thread Size: 5/16"-18 (18 Threads Per Inch) – Coarse Thread
• Length: Please select from the drop-down menu above
• Type: Carriage Bolt (also known as Coach Bolt or Shaker Screen Bolt)
• Matching Nuts & Washers: 5/16"-18 Nuts & Washers Available Here
• System of Measurement: Inch (Imperial / US)
• Material: Stainless Steel Grade A2 / 18-8
• Specifications: Conforms to ASME B18.5

Material Properties

Our carriage bolts are made from A2 / 18-8 stainless steel, offering:

• Excellent Corrosion Resistance: Ideal for outdoor, marine, and humid environments.
• High Strength and Durability: Suitable for structural and load-bearing applications.
• Non-Magnetic: A2 stainless steel is non-magnetic in the annealed condition.
• Long-Lasting Performance: Resistant to rust and oxidation, ensuring longevity.

Ideal Applications

• Wood-to-Wood Connections
• Deck and Dock Construction
• Fence and Gate Assembly
• Furniture Manufacturing
• Timber Framing and Pergolas

Why Choose These Carriage Bolts?

• Square Neck Design: Prevents the bolt from turning when the nut is tightened, ensuring a secure fit.
• Fully Threaded Shank: Provides versatility and strong fastening capabilities.
• Easy Installation: Domed head offers a smooth, finished appearance and eliminates the need for additional hardware on the head side.
• Corrosion Resistance: Stainless steel material withstands harsh weather conditions and environments.
• Standards Compliant: Manufactured to ASME B18.5 specifications for quality assurance.

Installation Tips

For optimal performance when installing carriage bolts:

• Drill a hole matching the bolt diameter (5/16 inch) through the materials to be fastened.
• Insert the bolt through the hole, ensuring the square neck fits snugly into the wood to prevent rotation.
• Use a hammer to tap the bolt head gently if necessary to seat the square neck into the wood.
• Tighten with a matching nut and washer on the opposite side using appropriate tools.

Note: Matching nuts and washers are available for purchase separately.

Order Yours Today

Secure your construction projects with our 5/16"-18 Stainless Steel Carriage Bolts. Perfect for creating strong, reliable connections in wood structures. Order now and benefit from fast shipping and exceptional customer service!

✔️ Trusted by professionals in construction and woodworking industries

✔️ High-quality stainless steel for long-lasting performance

✔️ Compliant with ASME B18.5 standards