SKU: 81817040520

Hillman 3/8 in. Diameter x 2-1/2 in. Length Zinc-Plated Steel Hex Bolt, 50-Pack

Sale price$21.59 Regular price$23.99
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Description

Hillman 3/8 in. Diameter x 2-1/2 in. Length Zinc-Plated Steel Hex Bolt, 50-PackHillman 3 8 in x 2 1 2 in Zinc Plated Hex Bolt (50 Pack) Durable Grade 5 steel hex bolts with a zinc plated finish for corrosion resistance. Coarse 3 8 in 16 threads and a partially threaded shank deliver strong holding power for general construction and repair. Key Features: Corrosion Resistant Zinc Plating: Protects against rust for long lasting performance Strong Grade 5 Steel: Reliable strength for most general purpose fastening Partially Threaded

Hillman 3/8-in x 2-1/2-in Zinc-Plated Hex Bolt (50-Pack)

Durable Grade 5 steel hex bolts with a zinc-plated finish for corrosion resistance. Coarse 3/8-in-16 threads and a partially threaded shank deliver strong holding power for general construction and repair.


Key Features:

  • Corrosion-Resistant Zinc Plating: Protects against rust for long-lasting performance
  • Strong Grade 5 Steel: Reliable strength for most general-purpose fastening
  • Partially Threaded Shank: Enhances grip and reduces shear movement between materials
  • Hex Cap Head: Allows higher torque for secure installation
  • SAE Coarse Threads: 3/8-in diameter with 16 TPI for compatibility with standard nuts and washers

Specifications Table:

Specification Details
Finish Zinc-plated
Manufacturer Color/Finish Silver
Bolt Diameter 3/8 in
Length 2-1/2 in
Bolt Thread Pitch 16 (3/8-16)
Full Thread No (partially threaded)
Grade 5
Head Type Hex cap
Material Steel
Measure Type Standard (SAE)
Thread Type Coarse
Package Quantity 50
Unit of Measure Count

Frequently Asked Questions (FAQ):

Q: Are these bolts fully threaded?
A: No. They have a partially threaded shank for added strength.


Q: What thread type and pitch do they use?
A: Coarse SAE threads, 3/8-in diameter with 16 threads per inch (3/8-16).


Q: What grade are the bolts?
A: Grade 5 steel, suitable for general-purpose fastening when paired with matching nuts and washers.


Q: Do I need to pre-drill?
A: Yes. Drill a hole matching the bolt diameter (3/8 in) for proper installation.


Q: Is the finish suitable for outdoor use?
A: The zinc-plated finish offers basic corrosion resistance; for harsh environments, consider specialized coatings.


Polished Utility with Industrial Poise

This zinc-plated hex bolt brings a crisp, silvery accent to exposed hardware moments, marrying function with a streamlined aesthetic. The hex cap head and clean threading offer a refined, utilitarian detail that pairs beautifully with raw woods and matte blacks. Use them on custom shelving brackets or modern furniture joints to spotlight craftsmanship. A small but essential touch that elevates everyday builds into tailored, luxurious projects.


Outfit your next project with these durable Grade 5 hex bolts and enjoy secure, corrosion-resistant fastening you can trust.

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: 81817040520

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Robert N. Langdon Jr.
Carnegie, US
★★★★★ 5
Nice watch at a very good price.
Color: Gold Silver Stainless Steel/Black Dial-2870
Favorite watch in my collection. I wear it every day, and at the price point, if breaks in six months I will buy another just like it.
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Reviewed in the United States on February 5, 2026
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Josh Taylor
Charlottesville, US
★★★★★ 5
Best cheap time piece there is
Color: Gold Silver Stainless Steel/Blue Dial-2870
I’ve been a chef for years and having a great watch that keeps time as well as it looks classy is a tough ask when you’re exposing said watch to high heat over the range, extreme lows putting away vendor orders in the walk in fridge or freezer (sometimes up to an hour or 2 at a time), getting popped with hot oil and sauces, and doing dishes when our dishwasher is a no show. I do take this off to make seasoned flour for fried chicken or seafood, but it can easily be kept clean and it keeps time EXTREMELY well. I get several compliments on it from other chefs and even the guests at our restaurants both in downtown Charleston and the resort at Kiawah Island. Just don’t bang the face of the watch into a steel prep table (it will chip or scratch). But it is possible to replace the face at a local jeweler, and at any desired quality or price bracket. I own this watch in several colors and have used them for 2 years now. I’ve been very happy with OLEVS all around.
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Reviewed in the United States on December 20, 2024
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JByrne3
Fort Morgan, US
★★★★★ 5
Affordable, comfortable, and practical watch
Color: Gold Silver Stainless Steel/Green Dial-2870, Color: Gold Silver Stainless Steel/Green Dial-2870
This watch is very good for its price range, of course this isn’t a Seiko, but what do you expect for under $50. I’m extremely excited about this watch and just finished removing some links for it to fit. That’s the worst part removing the links which is very difficult even with the tool that was supplied. Now, we’ll see how long the watch will last and hold up after everyday being worn. It’s a good looking and comfortable watch that’s inexpensive.
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Reviewed in the United States on July 6, 2025
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John Church
Lowell, US
★★★★★ 5
Fantastic watch
Color: Gray/Gray/Digital
I have bought these for years. I absolutely love this watch. It does everything that I need and wears like iron.
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Reviewed in the United States on December 17, 2025
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Amazon Customer
Alexandria, US
★★★★★ 5
Perfect
Color: Black/Black/Digital
Love this brand. 10/10
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