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SKU: CB316SS-14X112
(15)

Conquest 1/4" x 1-1/2" Carriage Bolt - 316 Stainless Steel

Diameters

1/4" 5/16" 3/8" 1/2" 5/8"

Lengths

1/2" 3/4" 1" 1-1/4" 1-1/2" 1-3/4" 2" 2-1/2" 3" 3-1/2" 4" 4-1/2" 5" 6" 7" 8" 9" 10" 12"
$032
Ships today when you order in the next 15 hours and 56 minutes

Description

Conquest 1/4" x 1-1/2" 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.

Conquest 1/4" 316 Stainless Steel Carriage Bolts are engineered for demanding environments where corrosion resistance and long‑term reliability matter most. Constructed from premium 316 stainless steel, these bolts perform exceptionally well in marine, coastal, and chemically exposed settings, making them ideal for construction professionals and DIYers alike.

1/4" Conquest 316 Stainless Steel Carriage Bolt – Corrosion‑Resistant Fastening

The smooth domed head and square neck design deliver a clean finished look while preventing the bolt from spinning during installation. These carriage bolts pair perfectly with compatible 316 stainless steel hex nuts and washers for secure, long‑lasting fastening.

Key Features

  • 316 Stainless Steel Construction: Premium corrosion resistance for outdoor, marine, and high‑moisture environments.
  • Thread Type: Coarse
  • Threads Per Inch: 20 TPI for secure engagement.
  • Round, Smooth Domed Head: Offers a polished, low‑profile appearance.
  • Square Neck Design: Locks the bolt in wood or metal to prevent spinning during tightening.
  • Wide Length Options: Available in multiple lengths to suit different material thicknesses and project needs.

Applications

  • Marine construction and dock hardware
  • Outdoor furniture, decking, and boardwalks
  • Pergolas, gazebos, fencing, and railings
  • Trailer hardware and equipment assembly
  • Any construction or repair in corrosive or high‑moisture areas

Installation

  • Drill a clearance hole through the material so the square neck seats firmly.
  • Insert the bolt so the square neck bites into wood or a square hole to prevent rotation.
  • Secure with a compatible 316 stainless steel nut and washer (sold separately).
  • Tighten from the nut side using a wrench or socket—no need to grip the head.

California Residents: WARNING

Specifications
Diameter: 1/4"
Length: 1-1/2"
Thread Length: Fully Threaded
Thread Type: Coarse
Threads Per Inch: 20
Head Type: Round Head, Square Neck
Material: 316 Stainless Steel
Finish: Plain
Measuring System: Standard SAE
Manufacturer Name: Conquest Fasteners
Quantity: 1 Bolt

Reviews
(15)

Customer Reviews

Based on 15 reviews
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(15)
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P
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.

Payment & Security

Payment methods

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Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

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1-2 day shipping

Fast, Same-Day Shipping

Our multiple distribution centers allow us to reach nearly 80% of the U.S. within 1-2 business days for all in-stock items. With thousands of items in stock & ready to ship, orders placed before 4:00pm CST ship out the same day.

Shipping & Returns

Employee-owned

Industry-best Customer Service

As employee-owners, we take customer service very seriously. Our team members are dedicated, professionally-trained, and have decades of combined experience serving the industry. Always speak with a real person and never wait more than 1 business day.

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Manufactured in Iowa Headquarters

Custom Product Solutions

Our Iowa-based 23,000 square foot manufacturing facility was carefully crafted for the high quality, custom production of tie-down straps and chains, lifting slings, cargo nets, and more. Your vision brought to life.

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