$199 away from FREE SHIPPING
SKU: CB316SS-516X6

Conquest 5/16" x 6" Carriage Bolt - 316 Stainless Steel

Conquest 5/16" x 6" Carriage Bolt - 316 Stainless Steel!

Skip to product information
1 of 6

Continue Browsing

Carriage Bolts

Bolts

SKU: CB316SS-516X6

Conquest 5/16" x 6" Carriage Bolt - 316 Stainless Steel

$1.99
Request Bulk Pricing
Request Bulk Pricing
Ships Sep 8 when you order now

Blazing Fast Shipments

Shipping & Returns

Tailored Business Programs

Partner with Us

Questions?

We can help!

Payment Options

American Express
Apple Pay
Discover
Google Pay
Mastercard
PayPal
Shop Pay
Venmo
Visa

Specifications

Diameter: 5/16"
Length: 6"
Thread Length: Fully Threaded
Thread Type: Coarse
Threads Per Inch: 18
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 5/16" x 6" 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.

The Conquest 5/16" Carriage Bolt made from 316 stainless steel is engineered to excel in the toughest environments. Whether you’re building near the coast, working with chemically treated wood, or constructing outdoor structures, this bolt offers exceptional resistance to rust and corrosion.

5/16" 316 Stainless Steel Carriage Bolts with Corrosion-Resistant Strength

Its rounded head and square neck design ensure a flush, tamper-resistant appearance with a secure grip that prevents rotation. Ideal for both structural and decorative use in marine, industrial, or outdoor residential applications.

Key Features

  • Diameter: 5/16"
  • Thread Type: Coarse
  • Threads Per Inch (TPI): 18
  • Material: 316 Stainless Steel – maximum corrosion protection
  • Head Type: Round domed head with square neck
  • Finish: Natural stainless for clean, polished appearance

Applications

  • Dock and pier construction
  • Decks, fences, and outdoor structures
  • Furniture, pergolas, gazebos
  • Trailer, marine, and equipment assembly
  • Coastal or chemically sensitive industrial builds

Installation Tips

  • Drill a clearance hole for proper neck seating.
  • Insert bolt with the domed head outward; ensure neck locks into material.
  • Secure from the nut side using a compatible 5/16" 316 stainless nut and washer (sold separately).
  • No need to hold the bolt head—tighten only from the nut side.

California Residents: WARNING

View full details

Continue Browsing

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
100%
(15)
0%
(0)
0%
(0)
0%
(0)
0%
(0)
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.