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SKU: CBSS-38X112
(22)

Conquest 3/8" x 1-1/2" Carriage Bolt - 18-8 Stainless Steel

Conquest Fasteners
Regular price $046
Ships Nov 13 when you order now

Description

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, they’re 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.

Specifications

Diameter: 3/8"
Length: 1-1/2"
Thread Length: Fully Threaded
Thread Type: Coarse
Threads Per Inch: 16
Head Type: Round Head, Square Neck
Material: 18-8 Stainless Steel
Finish: Plain
Measuring System: Standard SAE
Manufacturer Name: Conquest Fasteners
Quantity: 1 Bolt
Packaging Type: Single

Reviews
(22)

Customer Reviews

Based on 22 reviews
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(21)
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5%
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L
LAW
Carriage bolts 1/4" x 6" & 1/4" x 8" stainless steel

Had a hard tie finding what was need for boat repairs, Fasteners plus had exactly what was needed!

S
Sam Conte
All was in stock

All items were in stock and shipped right away!

S
SHAUN D WENTWORTH

Excellent Service!

C
Charles MacNally
good service nice product

great product

P
Philip Wagner
Pleasure doing business with this company

Fasteners Plus is a great company to work with. They had exactly what I needed and kept me informed at every step of delivery. I will definitely use them again and would HIGHLY recommend them.

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Our nationwide network of distribution facilities offers more product selection and faster delivery times. So far we’ve made remarkable progress in our expansion efforts, effectively doubling our capacity by adding a new 80,000 sq. ft. warehouse in Simpsonville, South Carolina, in addition to our existing 136,400 sq. ft. facility in Urbana, Iowa.

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We pride ourselves on delivering a user-friendly, high quality experience online and over the phone. Our knowledgeable team of experts is readily available via phone to assist with product questions and custom pricing inquiries. We’re available Monday thru Friday from 7:00 AM – 5:00 PM CST. We look forward to supporting you on your next job.

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