Conquest 5/16″ x 3-1/2″ Carriage Bolt – 18-8 Stainless Steel

When pairing a nut with a hex bolt, the material and finish must match. If these do not match, the nut will not fit the bolt.

5/16″ Conquest Carriage Bolt 18-8 Stainless Steel

The Conquest 5/16″ Carriage Bolt is crafted for strength, precision, and long-lasting performance in demanding environments. Designed with a smooth round head and a square neck, it resists spinning during tightening and creates a secure fit for timber-to-metal and timber-to-timber fastening applications.

Manufactured from 18-8 stainless steel, this bolt offers excellent corrosion resistance, making it ideal for marine, outdoor, and high-humidity environments. Commonly used in construction, framing, and repair projects where aesthetics and performance are key.

Key Features

• Diameter: 5/16″
• Thread Type: Coarse
• Threads Per Inch (TPI): 18
• Material: 18-8 Stainless Steel
• Head Type: Round Head with Square Neck
• Finish: Stainless rust-resistant for long-term durability

Applications

• Decking and fencing construction
• Pergolas, gazebos, and timber frames
• Outdoor and marine builds
• Roof trusses and framing systems
• General-purpose repairs and installations

Installation Tips

• Drill a clearance hole for smooth bolt insertion
• Square neck locks into place to prevent bolt spin
• Pair with 18-8 stainless steel nuts and washers
• Check torque after first load for best performance

California Residents: WARNING