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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4.9 ★★★★★
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J
Verified Purchase
J. saroukhan
Bozeman, US
★★★★★ 5
Well made , gym quality
Style: 10 Pound, Pair
Color is nice and bright . The weights grips are good they do not slip . Prices reflect quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 29, 2026
K
Verified Purchase
Kim Wood
Natrona Heights, US
★★★★★ 5
Good purchase
Style: 3 Pound, Pair
These are just the right weight for me to start gaining muscle back in my arms, after a large weight loss. They are of good quality, they are covered in a nice rubber like coating that is soft to the touch. They are small enough that i can take them with me when I travel. My dog has got hold of them a couple times and played with them, and they held up just fine without any damage.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
K
Verified Purchase
Ky Mogg
West Palm Beach, US
★★★★★ 5
Solid, grippy, and they don’t roll away!
Style: 10 Pound, Pair
I bought these because I’m finally trying to build a consistent home workout routine and didn't want to drop a fortune on name-brand weights. I’ve been using this 10lb pair for about a month now for everything from overhead presses to lunges, and honestly, they’re exactly what I was looking for. The Pros: • That Neoprene Grip: The coating is fantastic. Even when my hands get pretty sweaty halfway through a workout, I don’t feel like I’m going to drop them. It’s a much "softer" feel than cold metal or hard plastic. • The Hex Shape: This is a small detail that makes a huge difference. Since the ends are hexagonal, they don't roll across the floor when I set them down between sets. They also stay put if I’m using them for "renegade rows" or floor work. • Compact Size: They aren’t bulky. I can easily shove them under my bed or in the corner of the closet when I’m done. • No Weird Odor: I was worried they might smell like a tire factory (which happens with some rubber-coated weights), but these had almost no scent right out of the box. The Cons: • Handle Diameter: The handles are a little on the thicker side. I have medium-sized hands and it’s fine, but if you have very small hands, they might feel a bit chunky to wrap your fingers all the way around. • Color Scuffs: The navy blue looks great, but if you clank them together or drop them on concrete, the coating can scuff or show dust pretty easily. The Verdict: If you just need a reliable set of weights for HIIT, Pilates, or general strength training, these are a no-brainer. You're basically getting gym-quality equipment for a fraction of the price. I’ll probably be back for the 15lb set in a few months!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2026
D
Verified Purchase
Diamond Butterfly
San Leandro, US
★★★★★ 5
Love my mat!
Color: Pink, Style: 1/2 Inch
I’m new to stretching and recovery classes, and there is a lot of floor work. I was using the gym mats, but my knees, lower back, and glutes were hurting from being on the floor. This mat is the perfect thickness and feels wonderful during floor exercises. It gives me the extra cushion I need without being difficult to use. It’s also lightweight, durable, easy to clean, and easy to roll up for transport. The pink makes me smile. That said , the mat makes the classes more enjoyable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
R
Verified Purchase
RA
Waukegan, US
★★★★★ 5
Great value
Color: Aqua, Style: 1-Inch
Perfect exercise mat. It is nice and thick, and comfortable to kneel and lay on. Can't comment on durability, but so far, so good. Recommended.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026

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