carriage bolt

Conquest 5/16″ x 1-3/4″ Carriage Bolt – 18-8 Stainless Steel | Qty. 500 (Carton)

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$149.99 $74.995

Built for professionals and serious DIYers, this stainless steel carriage bolt delivers the durability and performance needed for demanding jobs. With a round head and square neck design, it provides smooth finishes and firm locking into wood or metal, preventing...

Built for professionals and serious DIYers, this stainless steel carriage bolt delivers the durability and performance needed for demanding jobs. With a round head and square neck design, it provides smooth finishes and firm locking into wood or metal, preventing spin during tightening. Manufactured from corrosion-resistant 18-8 stainless steel, these bolts are ideal for indoor, outdoor, and marine applications. Offered in multiple lengths and diameters, theyre compatible with a wide range of construction and fabrication needs. These coach bolts pair with compatible 18-8 stainless steel hex nuts and 18-8 stainless steel washers.

Key Features

  • Made from 18-8 stainless steel for excellent corrosion resistance in high-moisture or outdoor environments.
  • Round head and square neck design prevents bolt rotation once installed.
  • Available in a wide range of diameters and lengths to accommodate various material thicknesses and project needs.
  • Fully or partially threaded depending on size, ideal for both clamping and pull-through applications.
  • Clean, finished appearance for exposed applications like decks, pergolas, and framing.

Applications

  • Timber-to-metal or timber-to-timber connections in decking, fencing, pergolas, and framing.
  • Exterior or marine environments where rust resistance is essential.
  • Roof framing and structural fastening where aesthetics and hold strength matter.
  • Any general construction, renovation, or repair project where strength, corrosion resistance, and reliability are a must.

Installation

  1. Choose the correct diameter and length to ensure full thread engagement and proper grip.
  2. Drill a clearance hole through the outer material, then insert the bolt so the square neck bites into the wood or metal and prevents turning.
  3. Secure with a compatible 18-8 stainless steel nut and washer for best performance.
  4. For outdoor or corrosive environments, use stainless hardware throughout to maintain corrosion protection.
  5. Re-check tightness after initial use/load for maximum holding power.

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