Hillman 5/16 in. x 3-1/2 in. Stainless Steel Carriage Bolts (25-Pack)
SKU: 42396517231

Hillman 5/16 in. x 3-1/2 in. Stainless Steel Carriage Bolts (25-Pack)

Sale price$41.39 Regular price$45.99
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Hillman 5/16 in. x 3-1/2 in. Stainless Steel Carriage Bolts (25-Pack)Stainless Steel Carriage Bolts, 5 16 in. x 3 1 2 in. (25 Pack) Durable Hillman stainless steel carriage bolts provide a smooth, domed head and square neck that locks into wood for secure fastening. Ideal for exterior projects, they resist rust and corrosion and deliver a clean, semi flush finish. Key Features: Corrosion Resistant: Stainless steel construction stands up to outdoor and marine environments Secure Hold: Square shoulder locks into wood to

Stainless Steel Carriage Bolts, 5/16 in. x 3-1/2 in. (25-Pack)

Durable Hillman stainless steel carriage bolts provide a smooth, domed head and square neck that locks into wood for secure fastening. Ideal for exterior projects, they resist rust and corrosion and deliver a clean, semi-flush finish.


Key Features:

  • Corrosion Resistant: Stainless steel construction stands up to outdoor and marine environments
  • Secure Hold: Square shoulder locks into wood to prevent spinning during tightening
  • Clean Finish: Smooth, domed head creates a semi-flush, snag-free surface
  • Coarse Thread: SAE coarse threading for strong, reliable assembly
  • Value Pack: Includes 25 bolts sized 5/16 in. diameter x 3-1/2 in. length

Specifications Table:

Specification Details
Diameter 5/16 inch
Length 3-1/2 inch
Material Stainless Steel
Finish Stainless steel
Thread Size 5/16-18 (coarse)
Thread Type Coarse
Unit of Measurement SAE
Head Style Domed carriage head
Neck Style Square shoulder
Number in Package 25
Packaging Type Boxed
Intended Use Fasten wood face to wood or metal frame
Pack UPC (on box) 008236144932

Frequently Asked Questions (FAQ):

Q: Do these bolts include nuts or washers?
A: No—this pack contains only the carriage bolts; nuts and washers are sold separately.


Q: Can I use these outdoors?
A: Yes, the stainless steel material offers excellent rust and corrosion resistance for exterior applications.


Q: What tools are needed for installation?
A: Tighten from the nut side; the square neck locks into the wood to prevent bolt rotation, so no driver is needed for the head.


Q: What thread size are these?
A: They are 5/16 in. diameter with coarse SAE threads (5/16-18).


Q: What materials are they best for?
A: Designed to fasten a wood face to wood or metal framing.


Sleek Strength for Thoughtful Builds

A polished dome of stainless steel lends a refined, unobtrusive accent to woodwork while delivering steadfast performance. The square-shoulder detail is the quiet hero—discreetly locking into timber for a flawless, flush look. Pair with cedar or painted millwork where hardware should disappear into the narrative. For elevated outdoor living, these bolts are the subtle signature of craftsmanship.


Upgrade your project with corrosion-proof, clean-finish carriage bolts—add this 25-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: 42396517231

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Carley
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★★★★★ 4
Great toy for moderately destructive dogs
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My dog LOVES this toy. It's not hard to see why: it has just about everything a dog could want in a soft toy. There are ropes that move around, a squeaker, crinkly wings, and different textures of fabric. It's not extremely durable--I've had to sew up one busted seam within a month or so--and you will likely have to re-knot the ropes and pull them back through the holes, but if your dog is only moderately destructive, they will enjoy this. I'd buy another.
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Reviewed in the United States on February 11, 2025
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S. Hart
Carnegie, US
★★★★★ 3
Dog Obsessed -- Toy a Mess
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The dog was OBSESSED. Truly loved this toy, but he ripped the little pockets really easily. While he still wanted to play with it, it was a little disappointing.
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Reviewed in the United States on April 28, 2026
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BB
Whiting, US
★★★★★ 5
Cute toy
Color: Squirrel
My dog loved it! Looks just like the pics. Durable for most dogs I’m sure. My little dog can destroy anything though lol! Didn’t get to use the treat part cause he destroyed it but looks like a neat concept
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Reviewed in the United States on January 17, 2025
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Rene G. Riccardi
Port Orchard, US
★★★★★ 5
Creative and well made!
Color: Squirrel
This is a great dog toy, durable, creative, and it kept my dogs busy and very, very interested. It's challenging enough, but not frustrating. Great for tug of war, too!
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Reviewed in the United States on February 26, 2025
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NOLES 2021
Whiting, US
★★★★★ 1
Looks like fun but NO
Was so excited to get this and slow my girls down eating their treats and engage them in play. How big do the treats have to be? Because I had to scoop wet gross chewed up treats out of each pocket, vacuum, and put them in the washing machine AFTER my girls abandoned them with the treats still in the pockets. GREAT IDEA but not functional. Agressive chewers would have destroyed the toy the first time. SO DISAPPOINTED
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Reviewed in the United States on November 6, 2024

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