SKU: 20374358317

Hillman 5/8 in. D x 3 in. L Heat-Treated Steel Hex Head Cap Screw, Grade 8, 25-Pack

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Description

Hillman 5/8 in. D x 3 in. L Heat-Treated Steel Hex Head Cap Screw, Grade 8, 25-PackHillman Grade 8 Hex Head Cap Screws, 5 8" x 3", 25 Pack Heavy duty Hillman hex head cap screws deliver Grade 8 strength for demanding assemblies. Heat treated steel with a washer face under the head provides secure clamping and long lasting wear resistance. Key Features: Grade 8 Strength: Heat treated steel for high tensile performance in heavy duty applications Washer Face Head: Built in bearing surface under the hex head improves load distribution

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

Heavy-duty Hillman hex head cap screws deliver Grade 8 strength for demanding assemblies. Heat-treated steel with a washer face under the head provides secure clamping and long-lasting wear resistance.


Key Features:

  • Grade 8 Strength: Heat-treated steel for high tensile performance in heavy-duty applications
  • Washer Face Head: Built-in bearing surface under the hex head improves load distribution and sealing
  • Partially Threaded Shank: Added shear strength where it matters; coarse thread for quick starts
  • Durable Finish: Yellow dichromate/heat-treated finish enhances corrosion and wear resistance
  • Bulk Convenience: 25-pack for jobsite efficiency and consistent hardware matching

Specifications Table:

Specification Details
Brand Hillman
Diameter 5/8 inch
Length 3 inch
Head Type Hex head with washer face
Material Steel
Grade Grade 8
Thread Type Coarse
Threading Partially threaded shank
Finish Heat-treated yellow dichromate-style finish
Number in Package 25 pack
Packaging Type Boxed
Tightening Method Wrench or drill/driver
Category Hex Bolts
Unit of Measurement Imperial
Package Dimensions (L x W x H) 5.3 in x 4.3 in x 3.3 in
Package Weight 7.7 lbs

Frequently Asked Questions (FAQ):

Q: What size are these screws?
A: They are 5/8 in. diameter by 3 in. length, coarse thread.


Q: Are these fully threaded?
A: No. They are Grade 8 and partially threaded along the shank for added strength.


Q: What tools are needed for installation?
A: Tighten with a wrench or compatible socket/driver on the hex head.


Q: What material and finish are used?
A: Heat-treated steel with a yellow dichromate-style finish for strength and wear resistance.


Q: How many are included?
A: This box contains 25 hex head cap screws.


Industrial Strength, Streamlined Form

The bold geometry of a hex head brings a clean, purposeful rhythm to utility spaces. I love the subtle sheen of heat-treated steel—quietly powerful, impeccably functional. Use these Grade 8 cap screws to anchor butcher-block islands or exposed shelving for an honest, refined industrial note. They’re the precision detail that elevates hardworking design into everyday luxury.


Choose these Grade 8 Hillman cap screws for reliable, heavy-duty fastening that lasts—add the 25-pack to your project list 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: 20374358317

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Omaha, US
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Natrona Heights, US
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