Hillman 3/8 in. x 4 in. Hot-Dipped Galvanized Steel Carriage Bolt, 50-Pack
SKU: 90668775980

Hillman 3/8 in. x 4 in. Hot-Dipped Galvanized Steel Carriage Bolt, 50-Pack

Sale price$49.49 Regular price$54.99
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Description

Hillman 3/8 in. x 4 in. Hot-Dipped Galvanized Steel Carriage Bolt, 50-PackHot Dipped Galvanized Carriage Bolts, 3 8" x 4", 50 Pack These Hillman carriage bolts fasten a wooden face to wood or metal frames, delivering a clean, semi flush finish. Made of steel with a hot dipped galvanized coating, they provide strong holding power and robust rust resistance for outdoor and structural projects. Key Features: Corrosion Protection: Hot dipped galvanized coating resists rust for long lasting outdoor use Clean Finish: Rounded head

Hot-Dipped Galvanized Carriage Bolts, 3/8" x 4", 50-Pack

These Hillman carriage bolts fasten a wooden face to wood or metal frames, delivering a clean, semi-flush finish. Made of steel with a hot-dipped galvanized coating, they provide strong holding power and robust rust resistance for outdoor and structural projects.


Key Features:

  • Corrosion Protection: Hot-dipped galvanized coating resists rust for long-lasting outdoor use
  • Clean Finish: Rounded head eliminates need for a washer and sits semi-flush
  • Self-Locking Design: Square neck prevents spinning during installation
  • Heavy-Duty Build: Grade 2 steel construction with coarse threads for secure fastening
  • Project-Ready Quantity: Convenient 50-pack for bulk jobs

Specifications Table:

Specification Details
Brand Name Hillman
Material Steel
Finish Hot Dipped Galvanized
Grade 2
Diameter 3/8 inch
Length 4 inch
Thread Type Coarse
Unit of Measurement SAE
Number in Package 50
Packaging Type Boxed
Category Carriage Bolts
Package Height 3.3 in
Package Width 4.5 in
Package Length 6.8 in
Package Weight 6.8 lbs

Frequently Asked Questions (FAQ):

Q: What materials can these carriage bolts fasten?
A: They are designed to fasten a wooden face to wood or metal frames.


Q: Do I need a washer under the head?
A: No—the flat, rounded head is designed to provide a semi-flush finish without a washer.


Q: Are these suitable for outdoor use?
A: Yes, the hot-dipped galvanized finish offers excellent rust prevention for exterior applications.


Q: What thread type do they use?
A: Coarse SAE threads.


Q: What size are these bolts?
A: Diameter 3/8 inch with a 4 inch length.


Elevate Outdoor Builds with Galvanized Elegance

The rounded head of these carriage bolts brings a refined, minimal silhouette to fences, benches, and garden structures. Their hot-dipped galvanized sheen adds a subtle industrial note while standing up to the elements. Pair them with weathered wood and matte black hardware for a balanced, timeless composition. A staple detail that quietly defines luxurious, well-crafted outdoor spaces.


Secure your next project with durable, rust-resistant performance—add this 50-pack of Hillman galvanized carriage bolts 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: 90668775980

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P. Hardilek
New York, US
★★★★★ 5
Great product and fast shipping
Style: EcoFetch
Great ball launcher and ball. My dog adores it and plays with the ball even when she isn’t fetching. Fast shipping as well!
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Reviewed in the United States on May 26, 2026
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CraZyLeS
Birmingham, US
★★★★★ 5
Different colors
Style: EcoFetch
Works well. It is nice it is a different color from all the other Chuckit it balls. Dog loves it. Just wish she would bring it back.
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Reviewed in the United States on May 6, 2026
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Renae Halvorson
Massapequa, US
★★★★★ 4
Value for your money
Style: EcoFetch
It's definitely different from the one I lost. It's taking me some time how to throw the ball correctly. It's a hit and miss but we are getting there. When I do get a good throw, it really wings it out there.
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Reviewed in the United States on May 17, 2026
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Will Brannies
Pawtucket, US
★★★★★ 5
Well worth it
Style: EcoFetch
Works great
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Reviewed in the United States on May 20, 2026
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TailoredBohemian
Charlottesville, US
★★★★★ 5
Awesome quality balls -- my dog loves them!
Color: F) 3-Pack (2.5" Balls)
Love this 3 ball set and variety and quality. These are the 2.5" size, similar to a tennis ball size give or take. The fun citron yellow one is the thickest + heaviest, very bouncy, and tough. The blue is still tough but not as thick or bouncy, a bit more flexible. And the clearish one is the lightest/flexible and is glow in the dark [although we haven't tried that part yet]. I have a 7month old 40lb girl who is becoming like a power chewer on some things -- but hasn't done that with these. She can play, mouth them, chew them, not even one knick or anything. Yes! The citron and blue one we leave out all the time in her little toy box. They have holes in the middle and have used them to hold thinner bully sticks and other treats. The blue one is fun to put smaller treats inside that she can work out like a puzzle. Obviously they are fun for fetch! We leave the other up and only get out when we can play with her because label said it is not a chew toy so we didn't want to take chances. Overall super fun and cool and good quality, human and dog approved LoL. ***We ordered the 2 set of 4" balls, blue and purple [they are same consistency of the blue ball] and love these too! Very fun and good at using with treats the sticks too, plus these don't get lost under sofas and furniture like the smaller ones, a big plus.
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Reviewed in the United States on November 28, 2025

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