Hillman 3/8 in. x 5-1/2 in. Zinc-Plated Steel Carriage Bolt, 50-Pack
SKU: 62417333472

Hillman 3/8 in. x 5-1/2 in. Zinc-Plated Steel Carriage Bolt, 50-Pack

Sale price$43.19 Regular price$47.99
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Description

Hillman 3/8 in. x 5-1/2 in. Zinc-Plated Steel Carriage Bolt, 50-PackHillman Zinc Plated 3 8 in. x 5 1 2 in. Carriage Bolts (50 Pack) Durable zinc plated steel carriage bolts ideal for wood and metal fastening. Coarse thread Grade 2 bolts with round heads provide smooth, secure installs in structural and DIY projects. Key Features: Zinc Plated Protection: Corrosion resistant finish for indoor outdoor use Strong Steel Construction: Grade 2 steel suitable for general fastening applications Clean Round Head Design:

Hillman Zinc-Plated 3/8 in. x 5-1/2 in. Carriage Bolts (50-Pack)

Durable zinc-plated steel carriage bolts ideal for wood and metal fastening. Coarse-thread Grade 2 bolts with round heads provide smooth, secure installs in structural and DIY projects.


Key Features:

  • Zinc-Plated Protection: Corrosion-resistant finish for indoor/outdoor use
  • Strong Steel Construction: Grade 2 steel suitable for general fastening applications
  • Clean Round Head Design: Smooth, low-profile head for a finished look
  • Coarse Threads: Reliable grip in wood and metal with standard SAE threading
  • Bulk Value Pack: 50 boxed bolts for jobsite or workshop efficiency

Specifications Table:

Specification Details
Diameter 3/8 in.
Length 5-1/2 in.
Material Steel
Finish Zinc-Plated
Head Style Round
Thread Type Coarse (UNC)
Grade Grade 2
Unit of Measurement SAE
Packaging Type Boxed
Number in Package 50
Model 57187
Brand Hillman
Product Type Carriage Bolt
Weight 7.9 lbs

Frequently Asked Questions (FAQ):

Q: What nut size fits these bolts?
A: Use standard 3/8 in. coarse-thread (UNC) nuts and washers.


Q: Are these suitable for outdoor use?
A: Yes, the zinc-plated finish offers corrosion resistance for general outdoor applications; for harsh environments consider galvanized or stainless.


Q: Do they include nuts or washers?
A: No, this pack contains bolts only; nuts and washers are sold separately.


Q: What is the thread type?
A: Coarse UNC thread, compatible with SAE hardware.


Q: Can these be used in wood?
A: Yes, carriage bolts are commonly used in wood; the square neck locks into the wood to prevent turning during tightening.


Streamlined Strength with Polished Simplicity

These zinc-plated carriage bolts bring a refined, industrial clarity to any build—sleek round heads that read as clean, intentional hardware. The crisp metallic finish punctuates wood grains and painted surfaces with a subtle glint. Pair them with matte black brackets for contrast or echo the shine with brushed nickel accents. A small detail that elevates cabinetry, furniture, and architectural moments into a quietly luxurious statement.


Upgrade your projects with durable, zinc-plated Hillman carriage bolts—add this 50-pack to your cart 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: 62417333472

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Carmen Langton-Anson
Charlottesville, US
★★★★★ 5
Good toy for tough chewer.
Color: Hammer, Size: 7 Inch
My dog loved this toy. I would purchase again. Was a pretty tough toy, lasted longer than most.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
N
Verified Purchase
Nathan R
Birmingham, US
★★★★★ 5
Durable
Color: Hammer, Size: 7 Inch
Even my monster hasn't been able to chew through these in a few months, and he has destroyed one of the black Kongs in the same time frame.
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Reviewed in the United States on May 24, 2026
D
Verified Purchase
Darling
Lowell, US
★★★★★ 5
Tough to destroy for aggressive chewers
Color: Wrench, Size: 8 Inch
My doggie chewed out stairscase, the sofa, my shoes, and would destroy anything labeled pet “tough” toys. This stopped her from destroying!! Soo cool and cleans her teeth too. I got this one as gift for other retriever fams! Super cool. Doesn’t smell bad and its lightweight but durable like crazy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 30, 2026
A
Verified Purchase
Amazon Customer
Alexandria, US
★★★★★ 5
Great Chew Toy
Color: Wrench, Size: 8 Inch
An excellent chew toy for a very hearty chewer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 6, 2026
C
Verified Purchase
Concerned Citizen
Houston, US
★★★★★ 4
Great Toy for Chewers!
Color: Hammer, Size: 7 Inch
This is one of my dog’s favorite toys! He will chew on it for hours. It is durable and takes him a while to make it indistinguishable as a hammer. No smell to it. The rubber bits do come off so I have to check it and make sure he doesn’t eat them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 10, 2025

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