SKU: 26543458566

Hillman 5/16 in. x 3 in. Hot-Dipped Galvanized Steel Carriage Bolts, 100-Pack

Sale price$52.19 Regular price$57.99
Save 10%

Pay in installments of $14.50 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Hillman 5/16 in. x 3 in. Hot-Dipped Galvanized Steel Carriage Bolts, 100-Pack5 16 in. x 3 in. Galvanized Carriage Bolts (100 Pack) Durable Hillman carriage bolts made from steel with a hot dipped galvanized finish for superior rust resistance. Ideal for fastening wood to wood or wood to metal, the round head and square neck provide a clean, semi flush finish and self locking grip. Key Features: Corrosion Protection: Hot dipped galvanized finish resists rust for outdoor and coastal applications Secure Hold: Square neck locks

5/16 in. x 3 in. Galvanized Carriage Bolts (100-Pack)

Durable Hillman carriage bolts made from steel with a hot-dipped galvanized finish for superior rust resistance. Ideal for fastening wood to wood or wood to metal, the round head and square neck provide a clean, semi-flush finish and self-locking grip.


Key Features:

  • Corrosion Protection: Hot-dipped galvanized finish resists rust for outdoor and coastal applications
  • Secure Hold: Square neck locks into wood to prevent spinning during tightening
  • Clean Finish: Low-profile round head eliminates need for a washer in many installs
  • Reliable Strength: Grade 2 steel with coarse threads for dependable fastening
  • Bulk Value: 100-count boxed pack for jobsite and shop efficiency

Specifications Table:

Specification Details
Diameter 5/16 inch
Length 3 inch
Material Steel
Finish Hot Dipped Galvanized
Grade 2
Thread Type Coarse
Unit of Measurement SAE
Number in Package 100 pack
Packaging Type Boxed
Head Style Round head carriage bolt
Neck Style Square neck, self-locking
Category Carriage Bolts

Frequently Asked Questions (FAQ):

Q: What size are these carriage bolts?
A: They are 5/16 inch diameter and 3 inches in length with coarse threads.


Q: What materials are these suitable for?
A: They’re designed to fasten a wooden face to either a wood or metal frame.


Q: Are they rust resistant for outdoor use?
A: Yes, the hot-dipped galvanized finish offers strong corrosion protection for exterior applications.


Q: Do I need a washer under the head?
A: Typically no—the round head is designed to provide a semi-flush finish without a washer.


Q: How many bolts are in the package?
A: 100 bolts come in a boxed retail pack.


Understated Hardware, Elevated Finish

The soft dome head and muted galvanized sheen bring a quiet sophistication to exposed hardware moments. I love the square-neck detail—it nests into wood for a tailored, seamless look. Use these to secure bench slats or deck accents where the hardware becomes part of the design story. A dependable, polished touch for luxe, lived-in spaces.


Choose Hillman galvanized carriage bolts for a clean, secure install that stands up to the elements—order your 100-pack today.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 26543458566

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 20 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
L
Lady T
Los Angeles, US
★★★★★ 5
GREAT ORGANIZER!
Model: Pop up outlet-black
I got this to help clean up some of the cords around my office space, an organizer if you will. My husband built me an attachment for my desk without making alterations, and this helped clean up all the cords around my desk!!!! This thing works great! It would be best for an office desk with a built-in slot or as a replacement one for any office conference room!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 19, 2023
A
Verified Purchase
ARoberts
Port Orchard, US
★★★★★ 5
Metal VESA Mount
Great spacesaver for desk. Easy on-monitor installation and I couldn’t beat the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 18, 2026
G
Verified Purchase
Guillermo Loor
Fort Morgan, US
★★★★★ 5
Nice for cable management
Real metal so it is very sturdy and if you tighten your screw it will be very stable too. I out it next to my monitor mount which provide a nice setup for cable management. It fits perfectly to a VESA 100x100 mount. I have a similar setup in my office but under the desk which makes it versatile.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
A
Verified Purchase
Amazon Customer
New York, US
★★★★★ 5
Works awesome
Worked great! Helped to clean up clutter on my desk
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 28, 2026
L
Verified Purchase
Luxario
Grantham, US
★★★★★ 5
Fits HP G2 dock
I have this mounting an HP-G2 Dock on the back of my Samsung 28inch 4K monitor. I used an additional flat plate to mount this to the left with the monitor arm going the plate and into the monitor. So good I bought a second one for my co worker so our desk don't have wires on them now.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 25, 2026

recommand products