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
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 1927 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
K
Verified Purchase
Kristina
Natrona Heights, US
★★★★★ 5
A great natural treat option, my dog approves
Pattern Name: Full Ears, Size: 8 Count, Pattern Name: Full Ears, Size: 8 Count
Ingredients: Natural pig ears 👍, they smell smoky (my dog loves it, I don’t mind it), most of the time they are a decent size. My dog is half American bully and a heavy chewer so these are a great option for him. The quality is always good, and the bags I get are always fresh. These are a good treat for him when I have to sneak out for a bit or when I am leaving for work in the morning. I have purchased these several times. I also appreciate the eco friendly bag :)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026
T
Verified Purchase
Tannika Jones
Omaha, US
★★★★★ 4
Dog Treats
Pattern Name: Full Ears, Size: 8 Count
The pit bull and shiba inu love them.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 4, 2026
F
Verified Purchase
Freestorm
Chelsea, US
★★★★★ 5
Great Natural Chew Dogs Love, but Can Be a Bit Messy
Pattern Name: Half Ears, Size: 25 Count (Pack of 1)
These pig ears are a big hit with dogs and keep them busy for a good while. They’re made from a single ingredient, which is a nice plus if you’re looking for something more natural. They help with chewing and can support dental health by reducing plaque while your dog works on them. That said, they can be a little greasy and have a smell, which is pretty normal for pig ears. Also, they may not last as long for heavy chewers. Overall, a tasty and natural treat most dogs will love, just expect a little mess.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
C
Verified Purchase
Charmaine
Waukegan, US
★★★★★ 5
Large and fresh
Pattern Name: Full Ears, Size: 25 Count (Pack of 1), Pattern Name: Full Ears, Size: 25 Count (Pack of 1)
These are the next best thing from Costco’s pig ears that aren’t always around. Of course these are twice as much from Costco but mine doesn’t have them in stock right now. These ears are great! They are whole ears that are not stale or old. The bag says it’s bio-based and that it’s made out of sugar cane. My pit bull and Dogo recommend these!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 30, 2026
J
Verified Purchase
Jeff walker
Whiting, US
★★★★★ 5
Great price
Pattern Name: Full Ears, Size: 8 Count
Great price, my bloodhound loves them
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026

recommand products