SKU: 24216355574

Hillman 5/16 in. x 1 in. Zinc-Plated Steel Carriage Bolts, 100-Pack

Sale price$20.69 Regular price$22.99
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Description

Hillman 5/16 in. x 1 in. Zinc-Plated Steel Carriage Bolts, 100-Pack5 16 in. x 1 in. Zinc Plated Steel Carriage Bolts (100 Pack) Heavy duty Hillman carriage bolts secure wood to wood or wood to metal projects with a smooth, low profile, round head. Zinc plated Grade 2 steel offers dependable strength and corrosion resistance for indoor and light outdoor use. Key Features: Durable Construction: Grade 2 zinc plated steel resists rust and delivers reliable holding power Smooth, Low Profile Head: Round head provides a

5/16 in. x 1 in. Zinc-Plated Steel Carriage Bolts (100-Pack)

Heavy-duty Hillman carriage bolts secure wood-to-wood or wood-to-metal projects with a smooth, low-profile, round head. Zinc-plated Grade 2 steel offers dependable strength and corrosion resistance for indoor and light outdoor use.


Key Features:

  • Durable Construction: Grade 2 zinc-plated steel resists rust and delivers reliable holding power
  • Smooth, Low-Profile Head: Round head provides a clean, semi-flush finish without a washer
  • Anti-Spin Square Neck: Locks into wood to prevent turning during tightening
  • Coarse Thread SAE: Ensures strong grip and quick assembly in common building materials
  • Value Pack: 100 bolts per box for jobs, repairs, and shop inventory

Specifications Table:

Specification Details
Brand Hillman
Type Carriage Bolt
Diameter 5/16 inch
Length 1 inch
Material Steel
Finish Zinc Plated
Grade 2
Thread Type Coarse (SAE)
Head Style Round head with square neck
Number in Package 100 pack
Packaging Type Boxed

Frequently Asked Questions (FAQ):

Q: What size are these carriage bolts?
A: They are 5/16 inch diameter by 1 inch length with coarse SAE threads.


Q: Are nuts and washers included?
A: No, this pack includes bolts only; purchase compatible 5/16 in. nuts and washers separately if needed.


Q: Can these be used outdoors?
A: The zinc plating offers basic corrosion resistance suitable for indoor and light outdoor use; for harsh or coastal environments, consider hot-dipped galvanized or stainless steel.


Q: Do I need a tool to hold the head while tightening?
A: No; the square neck bites into the wood to prevent spinning while you tighten the nut from the threaded end.


Q: How many bolts are in the package?
A: 100 bolts per retail package.


A Clean, Flush Finish for Crafted Woodwork

The rounded head of this carriage bolt lends a polished, intentional detail to built-ins, benches, and garden structures. I love the seamless effect—no fussy washers, just a smooth dome anchoring the design. Pair it with oiled oak or painted pine for a modern, utilitarian edge that feels bespoke. It’s a small hardware choice that elevates everyday projects into refined, lasting pieces.


Secure your next build with dependable, clean-finished fasteners—add this 100-pack of Hillman carriage bolts to your cart now.

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: 24216355574

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Sarah
Houston, US
★★★★★ 4
Cute but run big
Special Size: 7" Inseam with Pockets, Size: X-Large, Color: Flamingo Pink
Color is fantastic. Very naked feeling. Runs big. I’m a size 12/14 and usually wear XL with them sometimes feeling tight. I am pear shaped - 35” waist, 47” hip and these fit but were quite loose in the waist. I might consider sizing down if I wanted to tighter. They would be very a bump-friendly non-maternity option
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Reviewed in the United States on May 28, 2026
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Rach
West Palm Beach, US
★★★★★ 5
Love these!!!
Special Size: 7" Inseam without Pockets, Size: Large, Color: Ocean Blue
Super happy with these shorts!!! Wore them on a full day at the theme park. Stayed in place and did not ride up. No pinching or constricting. The material is buttery soft and the blue is so vibrant and pretty!! Don’t show every bump and imperfection, but does show some. It’s not totally smoothing. Very work out friendly, heat friendly, running errands friendly. Would definitely recommend and plan to buy other colors. Comfy waist band as well.
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Reviewed in the United States on May 11, 2026
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CLJ_WV
Pawtucket, US
★★★★★ 5
Excellent Work-out & Biking Short
Special Size: 7" Inseam without Pockets, Size: Small, Color: Ocean Blue
I love these biker shorts. They have just the right amount of lycra and they are super soft. They are true to size, and they fit perfectly on my 5'2", 125-pound frame. I purchased them for use in bike riding, and I am very pleased with the fit and stretch. The inseam length is perfect for bike riding, and the legs don't ride up my thigh. The only con to all the pros is there isn't a phone pocket. I ride my bike around town, and I would have liked to have a pocket for my phone when going inside a store. These shorts are well worth the price. I purchased three different colors and love them all. I would definitely purchase this item again.
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Reviewed in the United States on January 7, 2026
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Amanda
Pawtucket, US
★★★★★ 4
Cute but could use some pockets
Special Size: 6" Inseam Contrast Trim without Pockets, Size: Small, Color: Navy/White
Obsessed with these shorts. They are so cute and comfy. They fit true to size and I love that there is a matching top you can buy separately. I feel like the material is pretty thick and I don't have to worry about it being see through. My only complaint is that there are no pockets.
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Reviewed in the United States on June 2, 2026
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Alecia
San Leandro, US
★★★★★ 5
Perfect workout shorts!
Special Size: 5" Inseam without Pockets, Size: Medium, Color: Black
Very comfortable and soft material. Great price! Perfect for workouts! Doesn't ride up or have constant pulling on them!
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