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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4.8 ★★★★★
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B
Verified Purchase
Blake S
Chelsea, US
★★★★★ 5
Excellent results, easy to use, impressed!
Size: 8 Oz, Size: 8 Oz
I used the glide coat ceramic sponge applicators (it’s what I had) and the absorption was perfect. Application on trim pieces was super easy. Had to get a little particular around my mirrors and window trim (I didn’t tape, oops) I used 4-5 throwaway microfiber towels to wipe excess. Super pleased with 1st coat, may go back for seconds on my tonneau. I left each section to cure for about 7 minutes then wiped with towel. Leaves a nice matte finish that pulls out the sparkles in my Raptor trim. No sticky residue leftover.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 9, 2026
S
Verified Purchase
SAM
Chelsea, US
★★★★★ 4
Very good but over priced!
Size: 8 Oz, Size: 8 Oz
Great product and works very well. I was disappointed because of the high price and the small size bottle. But other than that it’s a very good product and makes my work van look clean, shiny clean. My van is white, but it was easy to clean it if I missed up. Good but over priced!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 29, 2026
R
Verified Purchase
Rhi
Fort Morgan, US
★★★★★ 5
Super good
Size: 4 oz Kit, Size: 4 oz Kit
Super easy to use and seems to dry quickly. I think it’s a great value for the price. I can’t say how long the results last for but the process is easy enough and the results are good enough that I’d be down for doing it every couple months. It dries black and made my trim look brand new. Honestly the hardest part was just taping around the side mirrors. You should definitely get this if you’re on the fence about it.
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Reviewed in the United States on March 24, 2026
D
Verified Purchase
Desiree DAlessandro
Waukegan, US
★★★★★ 5
Superior trim restore product!!
Size: 8 Oz, Size: 8 Oz
Superior product!!! Best plastic and trim restore product I've ever used. I have a 2002 Camaro kept outside in the FL sun and this did an incredible job turning back the clock! Worked on the t-top rubber, front grill, and also in interior plastic panels that had gone grey with UV exposure. People can't belive my car is 24 year old and not garage kept thanks to products like this...
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Reviewed in the United States on April 30, 2026
J
Verified Purchase
J feathers
Grantham, US
★★★★★ 5
Works great. Very happy
Size: 4 oz Kit, Size: 4 oz Kit
This stuff was amazing. It literally is dye i used gloves and put it on my jeep bumpers, trim that was black my running boards and top half of jeep.. looks brand new.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 1, 2026

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