Hillman 3/8 in. x 1 in. Zinc-Plated Steel Carriage Bolt (100-Pack)
SKU: 27036327933

Hillman 3/8 in. x 1 in. Zinc-Plated Steel Carriage Bolt (100-Pack)

Sale price$28.79 Regular price$31.99
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Description

Hillman 3/8 in. x 1 in. Zinc-Plated Steel Carriage Bolt (100-Pack)3 8 in. x 1 in. Zinc Plated Steel Carriage Bolts, 100 Pack Durable Hillman carriage bolts secure wood to wood or wood to metal projects with a smooth, domed head and square neck that locks into place. Zinc plated Grade 2 steel offers dependable strength and corrosion resistance for general indoor and sheltered outdoor use. Key Features: Secure Hold: Square neck under the rounded head locks into wood to prevent spinning during tightening Corrosion

3/8 in. x 1 in. Zinc-Plated Steel Carriage Bolts, 100-Pack

Durable Hillman carriage bolts secure wood-to-wood or wood-to-metal projects with a smooth, domed head and square neck that locks into place. Zinc-plated Grade 2 steel offers dependable strength and corrosion resistance for general indoor and sheltered outdoor use.


Key Features:

  • Secure Hold: Square neck under the rounded head locks into wood to prevent spinning during tightening
  • Corrosion-Resistant Finish: Zinc-plated steel provides rust resistance and a clean, consistent appearance
  • General-Purpose Strength: Grade 2 steel suitable for a wide range of fastening applications
  • SAE Coarse Threads: Easy assembly with compatible nuts/washers for 3/8 in. hardware
  • Contractor Quantity: 100 bolts per box for efficient stocking and jobsites

Specifications Table:

Specification Details
Brand Hillman
Type Carriage Bolt
Diameter 3/8 inch
Length 1 inch
Material Steel
Finish Zinc Plated
Grade 2
Thread Type Coarse
Unit of Measurement SAE
Head Style Domed/round head with square neck
Count 100 per package
Packaging Type Boxed
Package Dimensions (L x W x H) 4.3 in x 4.3 in x 3.5 in
Package Weight 4.7 lb

Frequently Asked Questions (FAQ):

Q: What size are these carriage bolts?
A: They are 3/8 in. diameter by 1 in. length with coarse (SAE) threads.


Q: What material and grade are they?
A: They are made from Grade 2 steel with a zinc-plated finish.


Q: Are these suitable for outdoor use?
A: The zinc plating offers light corrosion resistance, making them fine for indoor and some sheltered outdoor applications; for harsh or coastal environments, consider stainless or hot-dipped galvanized hardware.


Q: Do these include nuts and washers?
A: No. This box includes 100 carriage bolts only; nuts and washers are sold separately.


Q: How do carriage bolts stay from spinning?
A: A square section beneath the domed head embeds into the wood, locking the bolt in place as the nut is tightened.


A Clean, Polished Fastener for Seamless Woodwork

The domed head lends a subtle, tailored finish that feels intentional rather than utilitarian. I love how the square neck tucks into timber, keeping the face pristine without extra hardware clutter. Pair these with oiled oak or painted millwork for a crisp, modern-meets-classic detail. A small choice that elevates craft—and the hallmark of refined, livable luxury.


Outfit your next build with these zinc-plated carriage bolts for a clean look and reliable hold—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: 27036327933

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Doug & Kelly
Lexington, US
★★★★★ 5
Great play and chew toy!
Pattern Name: Star
The dogs love these! They're sturdy and give them plenty of chew time. The size is great and they are very playable. The dogs have a lot of fun and the weight is just enough for our little dogs.
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Reviewed in the United States on February 20, 2026
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Michael R. Tench
Belleville, US
★★★★★ 5
Great for tug of war
Pattern Name: Checkered
Dog loves them. Best tug of war toy yet. Pretty we’ll indestructible
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Reviewed in the United States on January 2, 2026
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Pae Damien
Fort Morgan, US
★★★★★ 5
Great Dane Tested and Approved 5 Star
Pattern Name: Checkered, Pattern Name: Checkered
A picture is worth a thousand words applies to this product, as you will see in the attached photos these stand up to the abuse of a Great Dane. He has dragged me around the yard for hours already with this in his mouth and the stretchy handle keeps it shape. This ball is a little firmer than others of these I have had in the past, which helps exercise his giant jaw. I could get a few weeks out of the other brands I have bought. This brand is still like new well past the time others have failed. I will be ordering more as my French Mastiff is interested in one of his own (the boys do not like to share toys - most dog guardians understand).
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Reviewed in the United States on August 29, 2024
A
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Amazon Customer
Massapequa, US
★★★★★ 4
Holding up well.
Pattern Name: Checkered
Seems to be holding up to my aggressive chewer. I have it hanging from a tree branch and she loves leaping to get it! Buying another pair so she has a greater selection around the backyard.
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Reviewed in the United States on April 3, 2026
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Madisen Busch
Phoenix, US
★★★★★ 5
Good quality
Pattern Name: Checkered
10/10 my dog lovessss and she chews through everything but they last daily tug of war, I don’t let her sit and chew on it thought I only use it outside
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Reviewed in the United States on May 28, 2026

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