Hillman 1/2 in. x 4 in. Zinc-Plated Steel Carriage Bolt, 25-Pack
SKU: 51170151081

Hillman 1/2 in. x 4 in. Zinc-Plated Steel Carriage Bolt, 25-Pack

Sale price$15.47 Regular price$17.19
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Description

Hillman 1/2 in. x 4 in. Zinc-Plated Steel Carriage Bolt, 25-Pack1 2" x 4" Zinc Plated Carriage Bolts (25 Pack) Heavy duty Hillman carriage bolts made from steel with a corrosion resistant zinc plated finish. Ideal for fastening wood to wood or metal with a smooth round head and square neck for self locking installation. Key Features: Corrosion Resistance: Zinc plated steel provides moderate rust protection for indoor and sheltered outdoor use Self Locking Design: Square neck under round head prevents spinning and

1/2" x 4" Zinc-Plated Carriage Bolts (25-Pack)

Heavy-duty Hillman carriage bolts made from steel with a corrosion-resistant zinc-plated finish. Ideal for fastening wood to wood or metal with a smooth round head and square neck for self-locking installation.


Key Features:

  • Corrosion Resistance: Zinc-plated steel provides moderate rust protection for indoor and sheltered outdoor use
  • Self-Locking Design: Square neck under round head prevents spinning and reduces need for a driving tool
  • Clean Finish: Low-profile round head delivers a semi-flush, washer-less appearance
  • Reliable Strength: Grade 2 steel construction suitable for general structural and woodworking applications
  • Convenient Value Pack: Includes 25 bolts sized 1/2"-13 x 4" for project efficiency

Specifications Table:

Specification Details
Size 1/2 x 4-Inch
Thread Size 1/2"-13
Thread Style Right Hand
Thread Type UNC (coarse)
Fastener Type Carriage Bolt
Head Style Round
Head Type Round
Material Steel, Zinc-plated
Exterior Finish Zinc
Manufacturer Grade Grade 2
Metal Type Alloy Steel, Carbon Steel
Item Diameter 0.5 Inches
Number of Pieces 25
Color Zinc / Silver
Usage Wood connections
Measurement System Inch
Item Weight 5.6 pounds
Item Model Number 240318
Part Number 240318
UPC (web) 008236087505; 037504831724
Global Trade Identification Number (web) 00008236087505

Frequently Asked Questions (FAQ):

Q: What nuts and washers fit these bolts?
A: Use 1/2"-13 coarse-thread nuts; flat or split lock washers in 1/2" size are compatible if desired.


Q: Are these suitable for outdoor use?
A: The zinc plating offers moderate corrosion resistance; for harsh outdoor environments, consider galvanized or stainless alternatives.


Q: Do I need a special tool to install?
A: No driving tool is required for the head; the square neck grips the wood. Tighten using a 1/2"-13 nut with a wrench.


Q: What materials can I fasten?
A: Designed primarily for wood-to-wood or wood-to-metal connections.


Q: Are nuts included in the pack?
A: Nuts and washers are not included; this pack contains 25 carriage bolts only.


A Polished, Workhorse Fastener for Clean, Crafted Details

The smooth, rounded head of this zinc-plated carriage bolt brings a refined, utilitarian elegance to wood assemblies. Its square-neck profile nests into timber for a crisp, flush look—functional yet beautifully minimal. Pair with silvery hardware and pale woods to elevate benches, gates, and bespoke storage. A foundational detail that makes everyday builds feel impeccably finished and luxuriously considered.


AI Review Summary:

Across retail sites, buyers report solid value and reliable performance for general woodworking projects, noting the square neck prevents spin and the finish looks clean. Positive themes include consistent threading and accurate sizing; one review highlights using them for gate and deck builds with no issues. Neutral comments mention the zinc plating being best for indoor or sheltered use. A minority of feedback cites occasional surface blemishes or the need to source matching nuts separately. Representative quotes: “Good quality bolts for the price,” “Threads were clean and fit 1/2-13 nuts perfectly,” and “Finish is fine for indoor; I’d use galvanized outside.”


Secure your next project with these durable, zinc-plated Hillman carriage bolts—add the 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: 51170151081

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KT
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★★★★★ 4
Check the gap!
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Reviewed in the United States on April 7, 2026
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Reviewed in the United States on May 20, 2026
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★★★★★ 3
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Worked for 15 minutes. Repeatedly stalled. Replaced with name brand and ran like new. UPDATE. Seller immediately offered refund well outside refund window of opportunity. That’s nice to have someone stand behind their product
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Reviewed in the United States on May 9, 2026
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★★★★★ 5
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★★★★★ 5
Perfect replacement part
Perfect replacement
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