SKU: 99123099542

Hillman 5/16 in. x 3 in. Zinc-Plated Steel Hex Bolt, Grade 5 — 100 Pack

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Description

Hillman 5/16 in. x 3 in. Zinc-Plated Steel Hex Bolt, Grade 5 — 100 PackHillman Zinc Plated Grade 5 Hex Bolt, 5 16 in. x 3 in. (100 Pack) Durable Grade 5 hex bolts for general fastening in wood, metal, and composite projects. Zinc plated steel resists corrosion and features a partially threaded shank for strong clamping power. Key Features: Corrosion Resistant Zinc Plating: Helps protect against rust for long lasting performance Grade 5 Strength: Heat treated steel provides dependable holding power for general

Hillman Zinc-Plated Grade 5 Hex Bolt, 5/16 in. x 3 in. (100-Pack)

Durable Grade 5 hex bolts for general fastening in wood, metal, and composite projects. Zinc-plated steel resists corrosion and features a partially threaded shank for strong clamping power.


Key Features:

  • Corrosion-Resistant Zinc Plating: Helps protect against rust for long-lasting performance
  • Grade 5 Strength: Heat-treated steel provides dependable holding power for general construction
  • Partially Threaded Shank: Enhances grip and reduces shear movement between materials
  • Hex Cap Head: Accepts higher torque for secure installations with wrenches or sockets
  • Coarse 5/16"-18 Threads: Matches standard nuts and washers for straightforward assembly

Specifications Table:

Specification Details
Material Steel
Finish Zinc-plated
Color/Finish Silver
Head Type Hex
Diameter 5/16 in
Length 3 in
Thread Type Coarse
Thread Pitch 5/16"-18
Full Thread No (partially threaded)
Grade 5
Unit of Measure Count
Package Quantity 100
Measure Type Standard (SAE)

Frequently Asked Questions (FAQ):

Q: Are these bolts fully threaded?
A: No. They feature a partially threaded shank for improved clamping strength.


Q: What nut and washer grade should I use?
A: Use Grade 5 nuts and washers to match the bolt’s strength.


Q: What drill size is needed for installation?
A: Drill a hole matching the bolt diameter—5/16 inch.


Q: Can these be used outdoors?
A: Yes, the zinc plating offers corrosion resistance; however, for harsh or marine environments, consider more specialized coatings.


Q: What thread specification do these bolts have?
A: Coarse thread, 5/16"-18.


Streamlined Utility with a Polished Edge

These zinc-plated hex bolts bring a clean, silvery finish that elevates exposed hardware moments. The crisp hex head and partially threaded shank lend a tailored, utilitarian elegance to millwork and custom metal projects. Style them with matte black brackets for a chic, mixed-metal narrative. A small detail with big impact—perfect for refined, resilient spaces.


Secure your projects with dependable Grade 5 performance—add this 100-pack of Hillman 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: 99123099542

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kirk
Omaha, US
★★★★★ 5
Excellent timepiece.
Color: Brown/Green/Tan
Rugged Dual timepiece. Male or female for active lifestyle!
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Reviewed in the United States on March 26, 2026
I
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Inyo Pete
New York, US
★★★★★ 5
Great for protecting my maps
Size: Regular - 12 x 16 Inches
Fits my exploring maps just right. Heavier duty than expected. Ziplock closure is tight and should last for years.
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Reviewed in the United States on October 14, 2025
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Kara Coonrod
Bozeman, US
★★★★★ 5
Great product
Size: Large - 16 x 22 Inches
Size and durability are great. My husband used these while at a military training
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Reviewed in the United States on April 30, 2026
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Aaron
Natrona Heights, US
★★★★★ 4
Terrific addition to your backpacking gear
I like this map holder for its versatility in holding different size maps. Once sealed, it was very effective at keeping moisture out and protecting the maps. I originally used this on a 13K mountain ascent. Worked great. The only thing that can be tricky at times is sealing the top. It's not as easy as sealing a typical zip-loc kitchen bag, takes some doing to get it to seal.
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Reviewed in the United States on May 26, 2025
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BearKnife
Battle Creek, US
★★★★★ 5
Best Map Case Ever!!!
Size: Regular - 12 x 16 Inches
Best Map case in the market! Field tested and keeps everything dry. The size is fantastic and you can run paracord through the rings. I would recommend this to anyone that uses a map. You definitely pay for what you get and that's high quality and functionality.
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Reviewed in the United States on August 13, 2025

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