Hillman 3/8 in. Diameter x 1-1/2 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screw, 100-Pack
SKU: 85061254002

Hillman 3/8 in. Diameter x 1-1/2 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screw, 100-Pack

Sale price$55.79 Regular price$61.99
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Description

Hillman 3/8 in. Diameter x 1-1/2 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screw, 100-PackHillman Grade 8 Hex Head Cap Screws, 3 8 in. x 1 1 2 in., 100 Pack Heavy duty Grade 8 hex head cap screws designed for high stress assemblies. Made from heat treated steel with a yellow dichromate finish, they provide superior strength and wear resistance for machinery, automotive, and structural projects. Key Features: Grade 8 Strength: Heat treated steel for high tensile performance in demanding applications Durable Finish: Yellow dichromate coating

Hillman Grade 8 Hex Head Cap Screws, 3/8 in. x 1-1/2 in., 100-Pack

Heavy-duty Grade 8 hex head cap screws designed for high-stress assemblies. Made from heat-treated steel with a yellow dichromate finish, they provide superior strength and wear resistance for machinery, automotive, and structural projects.


Key Features:

  • Grade 8 Strength: Heat-treated steel for high tensile performance in demanding applications
  • Durable Finish: Yellow dichromate coating enhances corrosion and wear resistance
  • Secure Seating: Washer face under head provides better load distribution and seal
  • Coarse Thread: Partially threaded shank for strong holding power and faster installation
  • Bulk Pack: 100 screws per box for efficient jobsite stocking

Specifications Table:

Specification Details
Brand Hillman
Diameter 3/8 inch
Length 1-1/2 inch
Material Steel
Grade Grade 8
Finish Yellow dichromate; heat-treated
Head Type Hex head with washer face
Thread Type Coarse
Threading Partially threaded shank
Number in Package 100 pack
Packaging Type Boxed
Use For use with a nut or in a tapped hole; tighten with wrench or drill
Category Hex Bolts
Package Dimensions (L x W x H) 4.3 in x 4.3 in x 3.5 in
Package Weight 5.8 lbs

Frequently Asked Questions (FAQ):

Q: What size are these screws?
A: They are 3/8 in. diameter by 1-1/2 in. length with a coarse thread.


Q: Are they fully threaded?
A: No. They are Grade 8 cap screws that are partially threaded along the shank.


Q: What tools do I need to install them?
A: Tighten with a wrench or compatible socket; can also be driven with a drill and socket adapter.


Q: Will these resist corrosion?
A: The yellow dichromate finish provides enhanced wear and corrosion resistance compared to plain steel.


Q: How many come in a package?
A: 100 screws are included per boxed package.


Industrial Strength with a Polished Edge

These Grade 8 cap screws bring a refined, engineered clarity to any build—sleek, strong, and purposefully detailed. The faceted hex head and yellow dichromate sheen add a subtle, architectural accent while delivering uncompromising performance. Style them with matte black brackets or raw steel for a modern workshop aesthetic. It’s the quiet hardware that underpins luxurious, lasting design.


Equip your next build with Grade 8 confidence—add this 100-pack of Hillman hex head cap screws 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: 85061254002

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Amazon Customer
Charlottesville, US
★★★★★ 5
No more scrolling. Best price, abundant, does its job.
Model: 36 Sqft, Model: 36 Sqft
I have it under the closed cell foam. It’s great. Just as great as Killmat and all the other butyl rubber products. Let me ask you to do something: look at the people who rated it 1 and 2 stars. No reviews. No pictures. Why? They don’t want to see the most budget friendly product getting sold. That’s some weak business. Rest assured you’ll be happy with this. Why did I buy both types? Butyl rubber helps the car not be a tin can. It keeps the outside road vibrations out. Closed cell phone keeps your music in. They work best together., Kumbaya, we have unity! We can get along, even in this age in time. The closed cell foam is cheap. You’ll get it to replace the nasty cloth under your carpet. Do the knock test. It won’t help. You need this too. And truth be told, I prefer that it has no name on it. I’m not paying money so you can brand yourself on my car. Ps: these products go on and don’t come off. Don’t mess up. It’s the same for the competitors and the closed cell foam. One shot. Do it right the first time. I’m writing this review after I used up my first box and am getting more. Happy returning customer.
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Reviewed in the United States on May 17, 2026
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G.C.B.
Omaha, US
★★★★★ 5
Great stuff, well made.
Model: 36 Sqft
I was very pleased with this product. Very easy to use, flexible enough to conform to the variations of the surface (floor of the car and some side panels), and it stuck well. I topped it with a similar foam product to provide additional sound deadening. The car has not been run yet but the panels are much "quieter" when tapped on vs before with undercoating, felt and carpet. Seems well made and I expect no issues in the future.
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Reviewed in the United States on February 17, 2026
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Nick
West Palm Beach, US
★★★★★ 5
Great quality!
Model: 36 Sqft
Works amazing!! Same quality as the name brand stuff but significantly cheaper.
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Reviewed in the United States on May 19, 2026
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Nick
Alexandria, US
★★★★★ 5
Good inexpensive sound deadening
Model: 36 Sqft
This stuff works great, it's easy to apply, sticky, easy to cut. 36 ft.² was enough to do the inside and outside of my doors the roof, the wheel wells and rear fenders. Plus, it's a lot cheaper than others.
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Reviewed in the United States on February 8, 2026
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Saif addeen hakouz
Pawtucket, US
★★★★★ 5
Very good quality
Model: 36 Sqft
Very good quality, noticeable difference after installation. The sound deadening effect is clear, with a great reduction in road noise and vibrations. Installation was quick and easy.
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Reviewed in the United States on May 2, 2026

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