SKU: 10607093142

Hillman 5/16 in. x 2-1/2 in. Zinc-Plated Steel Carriage Bolt, 100-Pack

Sale price$30.59 Regular price$33.99
Save 10%

Pay in installments of $8.50 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 5 - Sep 10

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Hillman 5/16 in. x 2-1/2 in. Zinc-Plated Steel Carriage Bolt, 100-Pack5 16 in. x 2 1 2 in. Zinc Carriage Bolts (100 Pack) These Hillman carriage bolts fasten a wood face to wood or metal while providing a smooth, low profile domed head. Zinc plated steel offers moderate corrosion resistance, ideal for indoor or sheltered outdoor projects. Key Features: Multi Material Use: Fastens wood to wood or metal for versatile builds and repairs Low Profile Head: Smooth, domed head delivers a semi flush, snag free finish Washer

5/16 in. x 2-1/2 in. Zinc Carriage Bolts (100-Pack)

These Hillman carriage bolts fasten a wood face to wood or metal while providing a smooth, low-profile domed head. Zinc-plated steel offers moderate corrosion resistance, ideal for indoor or sheltered outdoor projects.


Key Features:

  • Multi-Material Use: Fastens wood to wood or metal for versatile builds and repairs
  • Low-Profile Head: Smooth, domed head delivers a semi-flush, snag-free finish
  • Washer-Free Locking: Square shoulder grips material to prevent bolt spin during tightening
  • Corrosion Resistance: Zinc-plated steel provides moderate protection against rust
  • Project-Ready Pack: 100 pieces sized 5/16 in. diameter x 2-1/2 in. length

Specifications Table:

Specification Details
Diameter 5/16 in.
Length 2-1/2 in.
Thread 5/16-18 (coarse)
Material Steel
Finish Zinc-plated
Head Type Domed carriage head
Shoulder Square shoulder locks into material
Package Quantity 100 pieces per retail package
Intended Use Fasten a wood face to wood or metal
Pre-Drilling Recommended; hole size to match bolt diameter

Frequently Asked Questions (FAQ):

Q: Do I need to pre-drill?
A: Yes. Drill a hole matching the 5/16 in. bolt diameter for best results.


Q: Are nuts and washers included?
A: This listing is for carriage bolts only; nuts/washers are typically sold separately.


Q: Can these be used outdoors?
A: Zinc plating offers moderate corrosion resistance and is suitable for indoor or sheltered outdoor use; for harsh outdoor environments, consider hot-dipped galvanized or stainless steel.


Q: What tools are needed for installation?
A: Insert the bolt through the pre-drilled hole; hold the domed head in place as the square shoulder bites, then tighten a matching nut with a wrench from the opposite side.


Q: What is the thread size?
A: These are 5/16 in. diameter bolts; the box image indicates 5/16-18 coarse threads.


Streamlined Hardware with a Purposeful, Polished Finish

A row of these domed carriage heads reads as clean, quiet jewelry for utilitarian woodwork. The softly rounded profile sits nearly flush, taming visual noise while adding a subtle glint of zinc. Use them to unify benches, garden carts, or utility shelving for a cohesive, crafted look. Simple, sturdy, and impeccably neat—an easy essential for elevated everyday builds.


Equip your next project with these durable zinc carriage bolts for a clean, secure, and professional finish—add the 100-pack to your cart now.

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: 10607093142

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 26 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
Mark Schull
Boise, US
★★★★★ 5
Great Product
Size: 7.75"
The bones are great! We have two Golden Retrievers and they love them
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 9, 2025
J
Verified Purchase
JCNP
Lexington, US
★★★★★ 5
The best
Size: 4"
Love all the bark bone products. Very durable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 15, 2025
A
Verified Purchase
ashley
Boise, US
★★★★★ 5
The best for my 3 extreme chewers!!
Size: 9.75"
These are the only bones I buy!!! We have three extreme chewers, pitty, Great Dane, German Shepard, and they love these! They last for about 6 months or so before they get to small for my liking and I order more. That is amazing considering the "toughest" toys that are "indestructible" usually last three minutes max lol. I like that they are made of good ingredients and made in the USA, and they don't have any weird smells like some bones I've tried. They all go bananas when I get a new box in, definitely my only go to for extreme chewers!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 8, 2025
J
Verified Purchase
Janece Pool
Lowell, US
★★★★★ 5
10/10!
Size: 6", Size: 6"
My dogs love the Boar BarkBone! I ordered a medium thinking it would still be pretty big, but it came in looking more like a small, hence the name of the "Boar" BarkBone. The Dino BarkBones seem to size up one and the Boar BarkBones size down one, so keep that in kind when getting one for your furry friend. Nevertheless, my two smaller dogs still enjoy chewing on this bone! It is easy for them to keep a hold of and easy to chew on. Like other Pet Qwerks bones we’ve gotten in the past, it does not smell to me, but the dogs seem to love the smell and it is everlasting throughout the entire life of the bone. It doesn’t ever break off in easy-to-swallow chunks and is actually pretty hard to break into. This bone is perfect for every dog, from light chewers to tough chewers, and is something I would recommend to anyone!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 18, 2019
M
Verified Purchase
Misty Arnold
Carnegie, US
★★★★★ 4
Great for super chewers
Size: 4"
This dog chew toy was much smaller than expected. With that being said, we have a pit-bulldog mix that’s a super chewer. When I gave this to him, I expected it’s destryction within a couple of days. It’s been over a month and although it shows wear and tear... he hasn’t destroyed it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2021

recommand products