SKU: 51170151081

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

$15.47 $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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4.5 ★★★★★
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Michele
Fort Morgan, US
★★★★★ 5
Love this chair!!!
Color: Beige
This chair is soooo comfy and looks fabulous!!! It fits under my L-shaped desk perfectly even when I work in the corner section! It was super easy to put together as well!!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026
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Verified Purchase
Hemet Michael
Alexandria, US
★★★★★ 5
Good value.
Color: Dark
Well built, looks good, and the material used are ok.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 4, 2026
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Verified Purchase
ibuy2much
Bozeman, US
★★★★★ 4
Nice office chair!
Color: Dark
This is a nice office chair. All of the features work as stated. I would say the seat is slightly more firm than I prefer, but comfort is subjective. The pleather is soft and I like that the arm rests fold out of the way.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 11, 2026
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HateToRegister
Port Orchard, US
★★★★★ 5
This Marsail Executive Office Chair Is Excellent For A Comfortable And Polished Desk Setup
Color: Dark
This Marsail executive office chair is excellent, and it brings together comfort, support and a clean professional look in a very practical way. The PU leather has a smooth, polished presence that suits a desk chair well without looking overly bulky. I appreciate that the design includes flip-up armrests, a height-adjustable seat, swivel movement and rolling mobility in one complete chair. The cushioning gives the chair a substantial seated feel, while the back design adds support without making the chair look heavy. It is an office chair that feels thoughtfully built for daily desk work, focused tasks and general seated comfort. The chair arrived securely protected and in very good condition, with the main parts kept in place well through transit. The PU leather surfaces looked clean, smooth and free from distracting marks when unpacked. The base, wheels, armrests, backrest and hardware all appeared properly finished and ready for assembly. Nothing about the chair parts looked loose, flimsy or poorly handled when it arrived. The included components were organized. The appearance of this chair is one of its strongest qualities because it has a dark, sleek and professional style. The chair fabric gives it a refined executive look, while the breathable mesh center keeps the backrest from appearing too solid or oversized. The flip-up armrests blend into the design nicely and add a cleaner profile when raised. The chair has a balanced shape, with a supportive back, plush seat and wide base that all work together visually. It looks modern without being too flashy, which makes it easy to place with different desks and work areas. Functionality is where this chair becomes especially practical because it is easy to put together and simple to adjust. The height adjustment works well for getting the seat into a comfortable position at a desk. The swivel and rolling movement make it easy to shift, turn and reach without the chair feeling stiff. The reclining range and gentle rocking function add a useful option for leaning back during breaks. The flip-up armrests are especially convenient because they allow the chair to tuck under a desk more easily and create extra freedom of movement when needed. The value is strong because this chair offers several useful features in one well-rounded design. The thicker cushioning, contoured support, PU leather surface, breathable backrest, reclining function and flip-up armrests all add to its usefulness. The sturdy base and stated 300-pound support rating also give it a more dependable feel than a basic desk chair. It provides the comfort expected from an executive chair while still offering space-saving details that make it practical. For the features, comfort and overall build, it delivers a very complete office seating option. I highly recommend this Marsail executive office chair for anyone wanting a comfortable, polished and functional desk chair. It is excellent, easy to put together and built with enough adjustability to support different work habits. The combination of plush cushioning, ergonomic shaping, smooth movement and flip-up armrests makes it especially useful for a home office or workspace. I also like that it has a professional look without sacrificing everyday convenience. It is a strong choice for dependable seating that looks good, works well and offers solid comfort.
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Reviewed in the United States on May 5, 2026
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Cart Curator
Bozeman, US
★★★★★ 5
Comfortable for daily use!
Color: Dark, Color: Dark
After using this chair for work and general desk time, I think it does a nice job balancing comfort, adjustability, and overall build quality without feeling overly bulky or cheap. It feels designed for people who spend long stretches at a desk and want something supportive but still comfortable enough to relax in occasionally. Assembly was straightforward. The instructions were clear, the hardware was organized well, and all the holes lined up properly during setup. I put it together by myself in around 20 minutes without needing extra tools. Once assembled, the chair immediately felt sturdy and stable rather than wobbly. The overall quality is solid for this price range. The PU leather has a soft feel and doesn’t have the stiff plastic-like texture some office chairs use. The stitching looks clean, the armrests feel secure, and the rolling base moves smoothly across the floor. The chair also feels durable overall, especially around the frame and base where cheaper chairs sometimes feel weak or shaky after a few weeks of use. It's very comfortable. The seat cushion is thick and supportive without feeling overly hard, and it stays comfortable during long work sessions. I’ve spent multiple hours at a time sitting in it without constantly adjusting positions or feeling pressure points. The mesh section in the backrest also helps airflow a bit, which keeps it from feeling too hot during extended use. The lumbar support is great. The backrest naturally follows the curve of your spine and provides good lower back support while still feeling relaxed enough for casual sitting. I also liked the higher back design since it supports the upper back and shoulders well during longer periods at the desk. The flip-up armrests ended up being more useful than I expected. They make it easy to slide the chair under the desk when not in use, and they also give more room if you like sitting cross-legged occasionally. Solid chair overally. It has a good mix of comfort, support, ease of use, and practical features without feeling overpriced.
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Reviewed in the United States on May 26, 2026

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