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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Dawn
Massapequa, US
★★★★★ 4
Very nice if you aren't too pick on actual color.
Size: Single Pelt/2 ft x 3 ft, Color: Blue
Colors may vary. I really liked this, it was the perfect size and that perfect combination of soft and fluffy, but not being "too fluffy" and looking like a shaggy dog that needed a haircut. My only complaint was the color. Supposed to be blue, and I know monitors and lighting distort stuff but this was an obvious turquoise/teal. Much much greener than I was looking for. I could have made any variant of an actual blue work from powder baby to practically navy, but not this. I had to return, but other than the color, this seemed to be a very nice rug. Sad the color was so off.
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Reviewed in the United States on February 10, 2025
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Mary
Draper, US
★★★★★ 5
Very Nice
Size: Double Pelt/2 ft x 6 ft, Color: Mocha
Great in my office chair for added comfort
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Reviewed in the United States on April 9, 2026
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Ninel Bubon
Lowell, US
★★★★★ 5
It is real and natural. No synthetic- no allergy!!!
Size: 2' x 6' (Double Pelt), Color: Brown Tipped
SUPER QUALITY, the color is exactly like on the picture, I love it!!! Thank you!
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Reviewed in the United States on April 3, 2026
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Terran
Grantham, US
★★★★★ 5
ITS SOOOO FLUFFY!!
Color: Orange
Ooouuu she’s so fluffy!!!!!! Omg, I’m in love. The color looks exactly as pictured. The gear shift cover was way too small for my RAV4 but it’s okay, it kind of interfered with the button to move the gear. Also, if you need to see the info on the dash, be aware that the steering wheel cover blocks it for the most part. I’m not bothered by it but it’s something to make note of for those who might be.
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Reviewed in the United States on April 24, 2026
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Michele Fay McKenna
Omaha, US
★★★★★ 5
Warm and soft!!
Color: Orange, Color: Orange
So funky and cute! Matches my inferno orange car! I really only wanted the steering wheel cover & have no need for the other covers because they don’t fit on my shifter, or my parking break. Besides, it gets kind of dirty on the console. Keeping gloves in the car so it doesn’t end up dirty from my hands this winter:) It does make it a bit hard to see the ignition and some of the gauges as it is so fluffy, but it’s so funny, I don’t care! Lol
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Reviewed in the United States on December 6, 2025

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