SKU: 21545613484

Hillman 3/8 in. x 1-1/2 in. Zinc-Plated Steel Carriage Bolt, Coarse Thread, 100-Pack

Sale price$36.89 Regular price$40.99
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Ships within 48 hours · Estimated delivery Jul 16 - Jul 21

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Description

Hillman 3/8 in. x 1-1/2 in. Zinc-Plated Steel Carriage Bolt, Coarse Thread, 100-PackHillman Zinc Plated 3 8 in. x 1 1 2 in. Carriage Bolts (100 Pack) Durable zinc plated steel carriage bolts for fastening wood to wood or metal with a clean, semi flush finish. Coarse threads and a square neck lock into wood to prevent spinning during installation. Ideal for indoor projects and general construction tasks. Key Features: Strong Steel Construction: Grade 2 steel for dependable fastening in woodworking and light structural applications

Hillman Zinc-Plated 3/8 in. x 1-1/2 in. Carriage Bolts (100-Pack)

Durable zinc-plated steel carriage bolts for fastening wood to wood or metal with a clean, semi-flush finish. Coarse threads and a square neck lock into wood to prevent spinning during installation. Ideal for indoor projects and general construction tasks.


Key Features:

  • Strong Steel Construction: Grade 2 steel for dependable fastening in woodworking and light structural applications
  • Corrosion-Resistant Finish: Zinc plating offers consistent appearance and rust resistance for indoor use
  • Clean, Semi-Flush Look: Rounded head eliminates need for a washer in many applications
  • Self-Locking Square Neck: Prevents bolt rotation for easier installation
  • Bulk Value Pack: 100-piece boxed set for jobsite or shop stocking

Specifications Table:

Specification Details
Brand Name Hillman
Material Steel
Finish Zinc Plated
Grade 2
Diameter 3/8 inch
Length 1-1/2 inch
Thread Type Coarse
Unit of Measurement SAE
Number in Package 100 pack
Packaging Type Boxed

Frequently Asked Questions (FAQ):

Q: Are these suitable for outdoor use?
A: Zinc plating provides some rust resistance, but for long-term exterior exposure, consider hot-dip galvanized or stainless options.


Q: Do I need a washer under the head?
A: The domed carriage head is designed to provide a semi-flush finish without a washer in many applications.


Q: What thread type do these bolts have?
A: They feature coarse SAE threads.


Q: What materials can I fasten with these?
A: Designed to fasten a wooden face to a wood or metal frame; the square neck locks into wood to prevent spinning.


Q: What size are these bolts?
A: Diameter 3/8 inch with a length of 1-1/2 inches.


A Clean, Classic Fastener for Crafted Woodwork

The domed silhouette and zinc sheen bring a refined, utilitarian elegance to cabinetry, benches, and custom storage. I love the square-neck detail—it bites into wood for a smooth, unbroken face that feels tailored. Pair with pale oak and matte black brackets for a modern workshop aesthetic. Essential hardware that quietly elevates everyday builds to luxe, thoughtful design.


Stock your shop with this 100-pack of zinc-plated carriage bolts for reliable, clean-looking assemblies that last.

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: 21545613484

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Verified Purchase
Jare
Port Orchard, US
★★★★★ 5
A Must Have For Car Restorations!
Style: 80 mil 36 sqft, Style: 80 mil 36 sqft
I have been installing this matting in my 74 Datsun 260Z restore and very pleased with the ease of application and overall quality. My car has bedliner coating inside and this stuff sticks extremely well and is easy to trim and shape as well. I have just started installing it and using the rollers to work it in place but I can already tell a difference with just the little bit I have added....has reduced the resonance in the metal already. It's not a fast process but know it will be very rewarding once complete.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
D
Verified Purchase
David McMillen
Waukegan, US
★★★★★ 5
Great product
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
Works great and the peal and stick backing makes it super easy to install
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
S
Verified Purchase
2 SWIFT
Draper, US
★★★★★ 5
GOOD PRODUCT // ARRIVED IN ONE DAY//WORKED AS ADVERTISED
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
The product at least for me worked exactly the way it should have, The adhesion was far better than shown in comments, it was about 45 degrees in my garage it did not budge...I am going to line my subwoofer box next ....
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 6, 2026
B
Verified Purchase
Bay
Birmingham, US
★★★★★ 5
Quiets the inside of the van complet ly and easy to work with
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
Great for insulating our van
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 27, 2026
G
Verified Purchase
George F. Sanford
Boise, US
★★★★★ 4
Easy to apply
Material Type: 157mil Closed Cell Foam, Style: 157 mil 36 SqFt
Nice product. With adhesive applied, this an all in one product. Easily cut to random shapes and dimensions and the adhesive seems to hold well. Removing the paper that protects the adhesive to apply in tight areas, presents a new set of problems. Having applied the product inside the panels of an old Trooper, it is yet to be determine if sound and temperature transfer are reduced.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026

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