Hillman 5/16 in. x 5-1/2 in. Zinc-Plated Steel Carriage Bolt, 50-Pack
SKU: 58880638024

Hillman 5/16 in. x 5-1/2 in. Zinc-Plated Steel Carriage Bolt, 50-Pack

Sale price$30.59 Regular price$33.99
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Hillman 5/16 in. x 5-1/2 in. Zinc-Plated Steel Carriage Bolt, 50-Pack5 16 in. x 5 1 2 in. Zinc Plated Carriage Bolts (50 Pack) Heavy duty zinc plated steel carriage bolts designed for secure fastening in wood and metal projects. The 5 16 in. diameter and 5 1 2 in. length provide strong hold and corrosion resistance for indoor and outdoor applications. Key Features: Durable Construction: Zinc plated steel resists rust and corrosion for long lasting performance Secure Grip: Square neck locks into wood to prevent bolt

5/16 in. x 5-1/2 in. Zinc-Plated Carriage Bolts (50-Pack)

Heavy-duty zinc-plated steel carriage bolts designed for secure fastening in wood and metal projects. The 5/16 in. diameter and 5-1/2 in. length provide strong hold and corrosion resistance for indoor and outdoor applications.


Key Features:

  • Durable Construction: Zinc-plated steel resists rust and corrosion for long-lasting performance
  • Secure Grip: Square neck locks into wood to prevent bolt rotation during tightening
  • Versatile Use: Ideal for decks, fencing, furniture assembly, and general construction
  • Bulk Value: Convenient 50-pack for larger projects and jobsite needs
  • Smooth Dome Head: Low-profile rounded head offers a clean, snag-free finish

Specifications Table:

Specification Details
Bolt Type Carriage bolt
Material Steel
Finish Zinc-plated
Diameter 5/16 inch
Length 5-1/2 inch
Thread Type Coarse
Head Style Dome head with square neck
Package Quantity 50
Product Dimensions (package) 13.6 x 4.5 x 3.3 inches
Package Weight 12.8 lb

Frequently Asked Questions (FAQ):

Q: What nuts and washers fit these bolts?
A: Use 5/16 in. coarse-thread nuts and corresponding flat or lock washers for proper fit.


Q: Are these suitable for outdoor use?
A: Yes. The zinc plating offers corrosion resistance suitable for most outdoor environments; for coastal or highly corrosive areas, consider stainless steel.


Q: Do these bolts have full threads?
A: Yes, they are fully threaded along the 5-1/2 in. length.


Q: What tools are needed for installation?
A: Tighten with a wrench or socket on the nut side; the square neck seats into wood to hold the bolt head in place without a screwdriver.


Q: Can they be used with metal?
A: They can be used in pre-drilled metal with a nut and washer; ensure proper hole size for the 5/16 in. diameter.


A Polished Hardware Essential with Architectural Poise

The smooth domed head of this carriage bolt brings a refined, tailored detail to woodworking and built-ins. Its zinc sheen offers a crisp, modern accent against natural timber, elevating utilitarian joinery into a design statement. Style it in exposed applications on benches or gates for a subtle industrial note. This is the quiet luxury of hardware—precise, durable, and impeccably finished.


Secure your projects with reliable, corrosion-resistant performance—add this 50-pack to your toolkit 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: 58880638024

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Verified Purchase
Janice Amidon
Chelsea, US
★★★★★ 5
Great product.
Size: 24x6 2Pcs, Color: Black
Very good sturdy item
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
M
Verified Purchase
Monkey
Massapequa, US
★★★★★ 5
Good buy
Color: Black, Size: 24 inches
The shelves are very nice and look great in my bathroom. Easy to hang. Glad I purchased.
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Reviewed in the United States on May 2, 2026
N
Verified Purchase
Nibi
Belleville, US
★★★★★ 5
Good shelf
Color: Black, Size: 24 inches
Lightweight shelves. Easy to assemble
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Reviewed in the United States on May 12, 2026
K
Verified Purchase
Keisha
Charlottesville, US
★★★★★ 4
Sturdy
Color: White, Size: 15 inches, Color: White, Size: 15 inches
Love the shelves. Nice touch to my bathroom. Easy enough to install. They're not holding anything too heavy so can't speak too much on that but they do have a nice width.
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Reviewed in the United States on March 30, 2026
K
Verified Purchase
Kaitlynn
Chelsea, US
★★★★★ 5
Good for light stuff
Color: Black, Size: 15 inches, Color: Black, Size: 15 inches
Good product. Very light though and if it’s in dry wall won’t hold something really heavy. I don’t think it would hold 20 pounds just light. I put over my washer and dryer and put one right on top that way I can put heavy stuff on that side without it weighing down and being ripped out of the wall. I won’t be putting heavy stuff on the right side I used 4 pieces and the wall is about 60-62 inches long
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Reviewed in the United States on December 5, 2025

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