Hillman 5/8 in. Diameter x 3-1/2 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread, 25-Pack
SKU: 6299097620

Hillman 5/8 in. Diameter x 3-1/2 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread, 25-Pack

Sale price$53.09 Regular price$58.99
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Description

Hillman 5/8 in. Diameter x 3-1/2 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread, 25-PackHillman Grade 5 Hex Head Cap Screws, 5 8" x 3 1 2", 25 Pack Durable Grade 5 hex head cap screws for heavy duty fastening. Made from heat treated zinc coated steel with coarse threads for strong holds and corrosion resistance. Ideal for use with nuts or tapped holes in structural and machinery applications. Key Features: Grade 5 Strength: Heat treated steel delivers reliable tensile strength for demanding projects Corrosion Resistant Finish: Zinc

Hillman Grade 5 Hex Head Cap Screws, 5/8" x 3-1/2", 25-Pack

Durable Grade 5 hex head cap screws for heavy-duty fastening. Made from heat-treated zinc-coated steel with coarse threads for strong holds and corrosion resistance. Ideal for use with nuts or tapped holes in structural and machinery applications.


Key Features:

  • Grade 5 Strength: Heat-treated steel delivers reliable tensile strength for demanding projects
  • Corrosion-Resistant Finish: Zinc coating helps resist rust for long-term performance
  • Coarse Thread Design: Ensures quick engagement and secure fastening in tapped holes
  • Washer Face Under Head: Provides improved bearing surface and seal
  • Convenient 25-Pack: Boxed quantity for efficient stocking and jobsite use

Specifications Table:

Specification Details
Size 5/8 in diameter x 3-1/2 in length
Material Steel
Finish Heat Treated Zinc
Grade Grade 5
Thread Type Coarse
Head Style Hex head with washer face
Number in Package 25 pack
Packaging Type Boxed
Application Use with a nut or in a tapped hole
Installation Tighten with a wrench or drill
Partial Thread Partially threaded along shank

Frequently Asked Questions (FAQ):

Q: Are these fully or partially threaded?
A: They are partially threaded along the shank.


Q: What tools are recommended for installation?
A: Tighten using a wrench or a drill/driver with the appropriate hex socket.


Q: Do these screws include washers or nuts?
A: No, this pack contains only hex cap screws; purchase compatible nuts and washers separately.


Q: What thread type is used?
A: Coarse thread.


Q: Is the finish suitable for outdoor use?
A: The zinc finish offers general corrosion resistance; for harsh environments, consider additional protective coatings or stainless options.


Industrial polish with dependable strength

These hex cap screws bring a clean, utilitarian elegance to hardware details, marrying strength with a refined zinc sheen. The grade 5 build and washer-faced head offer a tailored, precise look while delivering robust performance. Style them with matte-black brackets or raw steel accents to elevate workshop shelving or custom furniture. A smart essential that balances durability and design for luxe, hardworking spaces.


Choose Hillman Grade 5 hex cap screws for a strong, corrosion-resistant fasten that keeps your projects secure and professional.

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: 6299097620

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Reviewed in the United States on April 12, 2026
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Kevin March
Port Orchard, US
★★★★★ 4
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Reviewed in the United States on April 30, 2026
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Pawtucket, US
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I recently picked up a pair of Under Armour socks, and they’ve quickly become my go-to choice for daily wear and workouts. From the first wear, the fit felt snug and supportive without being too tight. The fabric is lightweight yet durable, and it does a great job wicking sweat — keeping my feet dry even during longer runs or intense gym sessions. One of the things I appreciate most is the arch support and cushioning in the right places. It adds just enough padding where I need it, especially under the ball and heel of the foot, which makes a noticeable difference on days when I’m on my feet a lot. The socks also have a nice breathable mesh pattern that improves airflow.
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