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SKU: CB316SS-38X312

Conquest 3/8" x 3-1/2" Carriage Bolt - 316 Stainless Steel

Conquest 3/8" x 3-1/2" Carriage Bolt - 316 Stainless Steel!

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Carriage Bolts

Bolts

SKU: CB316SS-38X312

Conquest 3/8" x 3-1/2" Carriage Bolt - 316 Stainless Steel

$1.39
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Ships Sep 8 when you order now

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Specifications

Diameter: 3/8"
Length: 3-1/2"
Thread Length: Fully Threaded
Thread Type: Coarse
Threads Per Inch: 16
Head Type: Round Head, Square Neck
Material: 316 Stainless Steel
Finish: Plain
Measuring System: Standard SAE
Manufacturer Name: Conquest Fasteners
Quantity: 1 Bolt
Description

Conquest 3/8" x 3-1/2" Carriage Bolt - 316 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.

Engineered for strength and long-lasting corrosion protection, the 3/8" Conquest 316 Stainless Steel Carriage Bolt is the go-to solution for professionals and demanding applications. Made from marine-grade 316 stainless steel, this bolt excels in saltwater, coastal, and chemically exposed environments.

3/8" 316 Stainless Steel Carriage Bolts with Marine-Grade Durability

Its domed, smooth head and square neck prevent rotation during tightening, offering a clean, tamper-resistant finish. Perfect for structural or aesthetic applications alike, from decks to docks and fencing to framing.

Key Features

  • Diameter: 3/8"
  • Thread Type: Coarse
  • Threads Per Inch (TPI): 16
  • Material: 316 Stainless Steel for top-tier corrosion resistance
  • Head Type: Round domed head with square neck for anti-spin installation
  • Finish: Uncoated stainless for a polished, clean appearance

Applications

  • Marine and dock building
  • Outdoor framing, decking, and furniture
  • Gazebos, fencing, boardwalks
  • Trailer assembly and repair
  • Corrosive and high-humidity industrial environments

Installation Tips

  • Drill a clearance hole to allow square neck to seat properly.
  • Insert bolt head first; ensure square neck locks in place.
  • Secure with matching 316 stainless steel nut and washer (sold separately).
  • Tighten from the nut side—no need to hold the bolt head.

California Residents: WARNING

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Carriage Bolts

Bolts

× WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects and other reproductive harm. For more information visit: www.P65Warnings.ca.gov.

Customer Reviews

Based on 15 reviews
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Paul Bunker
Had the fasteners

Had a little trouble getting through the first step. The size i was looking for didn't show up, but I clicked on a simular bolt which takes you the real menu. Then I was able to put in all the specs and found exactly what I was looking for. Don't give up if your first search doesn't display the part you want.

E
ELLEN EICHHORN

The shipment arrived and is in great shape. However, it was delayed, which is fine, but after three notices of ‘your delivery will be there tomorrow’ I had no confidence and was annoyed with the updates.

M
MICHAEL O'DONNELL
On time, excellent quality, Perfect

Neede replacement bolt, washers and nuts for snow blower that and rusted. These SS parts were perfect and got it ready for next year.