Hillman 1/2 in. Diameter x 8 in. Length Hot-Dipped Galvanized Steel Hex Bolt, 25-Pack
SKU: 19416778068

Hillman 1/2 in. Diameter x 8 in. Length Hot-Dipped Galvanized Steel Hex Bolt, 25-Pack

$94.49 $104.99
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Description

Hillman 1/2 in. Diameter x 8 in. Length Hot-Dipped Galvanized Steel Hex Bolt, 25-PackHillman 1 2 in. x 8 in. Hot Dipped Galvanized Hex Bolt (25 Pack) Heavy duty hex bolts built from steel with a hot dipped galvanized finish for superior corrosion resistance. Ideal for fastening wood to wood, wood to metal, and metal to metal where strength and outdoor durability are essential. Key Features: Corrosion Resistant Finish: Hot dipped galvanized coating stands up to outdoor and marine environments Strong, Reliable Hold: Partially threaded

Hillman 1/2 in. x 8 in. Hot-Dipped Galvanized Hex Bolt (25-Pack)

Heavy-duty hex bolts built from steel with a hot-dipped galvanized finish for superior corrosion resistance. Ideal for fastening wood-to-wood, wood-to-metal, and metal-to-metal where strength and outdoor durability are essential.

Key Features:

  • Corrosion Resistant Finish: Hot-dipped galvanized coating stands up to outdoor and marine environments
  • Strong, Reliable Hold: Partially threaded shank reduces shear movement for sturdier assemblies
  • General-Purpose Grade: Grade 2 steel suitable for most common construction and repair tasks
  • Versatile Applications: Works with matching nuts and washers for wood or metal projects
  • Bulk Value Pack: 25-pack for jobsite efficiency and consistent hardware matching

Specifications Table:

Specification Details
Brand Hillman
Diameter 1/2 inch
Length 8 inch
Material Steel
Finish Hot Dipped Galvanized
Grade Grade 2
Thread Type Coarse
Head Type Hex
Shank Partially threaded
Applications Wood-to-wood, wood-to-metal, metal-to-metal
Count 25 pack
Packaging Type Boxed
Package Dimensions (L x W x H) 4.5 in x 9 in x 4 in
Package Weight 12.2 lbs

Frequently Asked Questions (FAQ):

Q: Are these bolts fully or partially threaded?
A: They are partially threaded to provide a stronger grip and reduce shear movement.

Q: Can these be used outdoors?
A: Yes. The hot-dipped galvanized finish offers robust corrosion resistance for exterior use.

Q: What grade are the bolts?
A: Grade 2, appropriate for most general-purpose fastening jobs.

Q: What nuts and washers should I use?
A: Use nuts and washers of a similar grade (Grade 2) and matching galvanized finish.

Q: What thread type do these bolts have?
A: Coarse thread.

Rugged Hardware With a Clean, Galvanized Edge

There’s a quiet elegance to well-made hardware—the crisp hex head and silvery galvanized sheen bring a refined utility to decks, gates, and outdoor structures. I love the elongated, partially threaded shank; it feels purposeful and architectural. Style it with matching galvanized washers and nuts for a cohesive, industrial-chic finish. Consider these your foundational pieces for durable, polished outdoor builds.

Secure your project with corrosion-resistant strength—add this 25-pack of galvanized hex bolts 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: 19416778068

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Jacob C. Hall
Belleville, US
★★★★★ 4
Awesome, inexpensive alternative to name-brands!
Size: 36 sqft
Awesome. Stuck well with alcohol prep and time to let liquid flash-off. Very consistent, piece to piece. Backing peeled easily when desired. Compared to Amazon Basics, the butyl seemed a little thicker (infinitesimally) and stickier, foil was less thick than Amazon Basics. Very good value. Started with my nice car, but after completing project, sound dampened all cars in the immediate family it made such a noticeable difference in sound level and quality of music from soeakers. Recommended!
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Reviewed in the United States on October 21, 2025
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David
Massapequa, US
★★★★★ 5
Easy to use
Size: 36 sqft, Size: 36 sqft
Very good and easy to use, made my 88 Chevy feel better
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Reviewed in the United States on June 2, 2026
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Jeff Van Es
Draper, US
★★★★★ 5
Great sound deadening material with easy installation.
Size: 36 sqft, Size: 36 sqft
This sound-deadening mat was easy to install on the roof of my Toyota FJ Cruiser. It significantly stiffened the roof and dramatically reduced the wind noise inside the vehicle caused by my roof rack and lights. I can actually carry on a conversation again without shouting while driving on the freeway. The 36-square-foot package was enough for my application, with about three sheets left over. The tiles adhered well to the metal without any special surface preparation. I only wish I had done this sooner.
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Reviewed in the United States on May 20, 2026
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Dustin Felton
Waukegan, US
★★★★★ 5
Siless Hybrid 3-in-1 - Far Exceeded my Expectations!!!
Model: SLH20025
I recently installed the Siless Hybrid 3-in-1 sound deadening mat in my vehicle, and I’m genuinely impressed. For just $80 for 25 square feet, this product delivers performance that rivals materials costing twice as much — and with far less hassle. If you're on the fence......Just buy it! You will not be disappointed. Easy to Install: Unlike traditional sound deadening products that are stiff, sharp, and temperature-sensitive, this mat is soft, flexible, and easy to work with. I cut it cleanly with regular scissors and pressed it into tight spaces using just my fingers, so if in you don't have a roller or install tool, a good pair of scissors and your hands can get the job done. With other brands like Dynamat, the aluminum layer often leaves micro cuts on your hands and tears up your fingertips, but Siless does not due the acoustic layer being on top and above the aluminum layer that holds the butyl layer. So, it's very easy on your hands. Even in cooler temperatures (around 50°F), I had no trouble applying it but it goes on better heated. If warm outside, I would leave the entire box out in the sun for at least 30 minutes when it's warm or heats it's very pliable and easy to mold. Make sure its where you want it because once applied it's not ever falling off. and it became even more pliable and easy to mold. No heat gun, no mess — just straightforward application. I installed 40–50 square feet throughout the interior, covering everything except the headliner and the flooring forward of the rear seat. The difference in cabin noise is astonishing. I can turn my radio up concert loud with gut-punching bass, and from outside the car, it sounds like a factory sound system at mid volume. I was blown away by how well it contains sound — both inside out and outside in. My exhaust is pretty aggressive and now is barely audible from inside the cabin. While driving, it almost sounds like a stock factory setup. The Siless matting actually changed the driving experience and feels refined. If you're skeptical about sound deadening gimmicks, I get it, but this is the first product I've used and when I needed more, I went Stright to the 3 in 1 Hybrid matting and purchased it again. I love researching before buying and that's very uncommon for me to do. Note: Proper installation is key, and it does take time and patience. But if installed correctly and in the right places, it works better previously used from paint-on sound deadening to Dynamat. Update Nov, 2025 After using it this in 4 separate vehicles now. I feel the Siless’s 3 in 1 Hybrid has nailed it for best budget deadener that is better than dynamat extreme in performance and installation Protip: buy a roll of 2-3” aluminum tape and tape the seams. After trimming the edges tend to very sticky between the panels. I ran a strip of aluminum tape over the seems to create a better seal and true moisture I used it on four vehicles now and have I have not been paid to review and purchased every order myself. 3 in 1 Hybrid deadener by Siless is the best all around easy to apply sound deadner period!
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Reviewed in the United States on September 29, 2025
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Tee & Cee
Boise, US
★★★★★ 5
Top quality
Model: SLH20025
This Siless Hybrid 3-in-1 sound deadening mat is easy to work with and feels high-quality. The butyl material is thick and pliable, making it simple to cut and fit into doors, floors, or panels. After installation, road noise and vibrations are noticeably reduced, and it also seems to improve the overall cabin feel. No bad smell. At 25 sq ft per roll, it’s a good value for anyone looking to dampen noise and improve car acoustics. Overall, a solid, effective option for automotive soundproofing. Used on a Fiesta ST.
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Reviewed in the United States on February 15, 2026

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