Hillman 1/4 in. x 3-1/2 in. Stainless Steel Carriage Bolts, 25-Pack
SKU: 19523842268

Hillman 1/4 in. x 3-1/2 in. Stainless Steel Carriage Bolts, 25-Pack

Sale price$31.49 Regular price$34.99
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 1/4 in. x 3-1/2 in. Stainless Steel Carriage Bolts, 25-PackStainless Steel 1 4" x 3 1 2" Carriage Bolts (25 Pack) Stainless steel carriage bolts from Hillman offer durable, corrosion resistant fastening for wood to wood or wood to metal projects. The low profile, domed head provides a semi flush finish, while the square neck locks into wood to prevent spinning during installation. Key Features: Corrosion Resistance: Stainless steel construction for superior rust prevention in outdoor or humid environments

Stainless Steel 1/4" x 3-1/2" Carriage Bolts (25-Pack)

Stainless steel carriage bolts from Hillman offer durable, corrosion-resistant fastening for wood-to-wood or wood-to-metal projects. The low-profile, domed head provides a semi-flush finish, while the square neck locks into wood to prevent spinning during installation.


Key Features:

  • Corrosion Resistance: Stainless steel construction for superior rust prevention in outdoor or humid environments
  • Semi-Flush Finish: Low-profile, smooth domed head eliminates the need for a washer and delivers a clean look
  • Self-Locking Neck: Square underside locks into wood to prevent bolt rotation for easier tightening
  • Coarse Threads: Designed for strong holding power in general-purpose applications
  • Convenient Value Pack: 25 bolts per box to tackle larger projects

Specifications Table:

Specification Details
Diameter 1/4 inch
Length 3-1/2 inch
Material Stainless Steel
Thread Type Coarse
Head Style Low-profile domed carriage head
Neck Style Square neck, self-locking
Unit of Measurement SAE
Number in Package 25 pack
Packaging Type Boxed

Frequently Asked Questions (FAQ):

Q: What size are these carriage bolts?
A: They are 1/4 in. diameter and 3-1/2 in. length (SAE units).


Q: Are nuts and washers included?
A: This listing is for bolts only; nuts and washers are typically sold separately.


Q: Can these be used outdoors?
A: Yes. The stainless steel material provides excellent corrosion resistance for outdoor applications.


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


Q: How are carriage bolts installed?
A: Insert the bolt through a pre-drilled hole; the square neck seats into the wood to prevent spinning as you tighten a nut on the opposite side.


A Clean, Polished Fastener for Timeless Woodwork

The domed head of this stainless carriage bolt brings a refined, unobtrusive detail to cabinetry, benches, and architectural millwork. Its sleek, bright finish harmonizes with both natural timber and painted surfaces, offering a subtle, modern accent. Use it to secure deck benches or handcrafted furniture where hardware should be functional yet discreet. It’s a small luxury that elevates everyday joinery with enduring elegance.


Secure your project with rust-resistant precision—add this Hillman 25-pack of stainless 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: 19523842268

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.7 ★★★★★
Based on 1666 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Jack Swidecki
Dallas, US
★★★★★ 5
Worth the buy
Style: 30 pcs, Style: 30 pcs
Put in my 1991 f250 super cab and it did the whole bottom and then some. Works spectacularly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
J
Verified Purchase
james
Dallas, US
★★★★★ 5
Would recommend
Size: 10 sqft
I used this sound deadening material in my car during an audio and interior upgrade, and the difference was noticeable immediately. Road noise, vibrations, and rattling were reduced a lot, especially on the doors and floor panels. The car feels much quieter and more solid while driving now. The material was easy to cut and apply, and the adhesive stuck very well without peeling up. It has a quality feel to it and conforms nicely around curves and tight areas. I also noticed my speakers sound cleaner and have better bass response after installing it. For the price, this sound deadening material is a great value and definitely worth it if you want a quieter ride and better overall sound quality in your vehicle.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
D
Verified Purchase
David
Waukegan, US
★★★★★ 5
Worth it!
Size: 50 sqft
I was worried it wouldn't work as well since it's 50 mil and I thought I got the wrong thing. Nope! Works great. Did all four doors on my 93 civic and I have enough for the floor I think. Solid price. Noise reduced by about 5 decibels hive difference. Very sticky and easy to apply I'm so happy I was able to cover most all of my car. If I need more, definitely buying this since I got so much extra and I thought I would. PS: that five decibel thing is only with the four doors. My firewall is next and then my floor, but it's such a huge difference
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 2, 2026
T
Verified Purchase
Teresa A. Patterson
Cuba, US
★★★★★ 5
Quiet your vehicle noises
Size: 50 sqft
Put this in our high roof van and couldn’t believe how much quieter it was at once. Really cut down on the vibration noise Nice and easy to install just peel n stick. Was also easy to cut with scissors for smaller areas. Seemed to be really nice quality. Didn’t notice any odor.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 9, 2026
S
Verified Purchase
Stephanie
Draper, US
★★★★★ 5
Sound deadening the Hot Rod
Size: 20 sqft, Size: 20 sqft
Works well, good value for the money. It’s very sticky and conforms to what you are applying it to. One 20 sq ft box did approximately the passenger side
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026

recommand products