SKU: 37040353714

Hillman 3/8 in. Diameter x 4 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screw, 50-Pack

Sale price$73.79 Regular price$81.99
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Description

Hillman 3/8 in. Diameter x 4 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screw, 50-PackHillman Grade 8 Hex Head Cap Screws, 3 8" x 4", 50 Pack Heavy duty hex head cap screws made from heat treated Grade 8 steel for superior strength and wear resistance. Partially threaded with a washer face under the head for a secure seal, ideal for fastening into nuts or tapped holes. Coarse thread design ensures reliable assembly in demanding applications. Key Features: Grade 8 Strength: Heat treated steel delivers high tensile performance for heavy

Hillman Grade 8 Hex Head Cap Screws, 3/8" x 4", 50-Pack

Heavy-duty hex head cap screws made from heat-treated Grade 8 steel for superior strength and wear resistance. Partially threaded with a washer face under the head for a secure seal, ideal for fastening into nuts or tapped holes. Coarse thread design ensures reliable assembly in demanding applications.


Key Features:

  • Grade 8 Strength: Heat-treated steel delivers high tensile performance for heavy-duty projects
  • Washer Face Seal: Built-in washer face under the head helps create a better seal
  • Partially Threaded Shank: Provides alignment strength with threaded grip where it counts
  • Corrosion-Resistant Finish: Yellow dichromate coating enhances durability and wear resistance
  • Multipack Convenience: Boxed 50-pack for jobsite or shop efficiency

Specifications Table:

Specification Details
Diameter 3/8 inch
Length 4 inch
Material Steel
Finish Heat-treated yellow dichromate
Grade Grade 8
Head Type Hex head with washer face
Thread Type Coarse
Threading Partially threaded
Number in Package 50
Packaging Type Boxed
Use For use with a nut or in a tapped hole; tighten with wrench or drill

Frequently Asked Questions (FAQ):

Q: Are these fully threaded?
A: No. They are partially threaded along the shank.


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


Q: What thread type do these bolts use?
A: Coarse thread.


Q: Can these be used with nuts or tapped holes?
A: Yes. They are designed for use with a nut or in a properly tapped hole.


Q: What is the diameter and length?
A: 3/8 inch diameter and 4 inch length.


Industrial Polish with Uncompromising Strength

These Grade 8 cap screws bring a refined industrial character to custom builds, pairing a clean hex silhouette with a luminous yellow dichromate finish. The partially threaded shank offers a tailored, architectural look while maximizing performance. Style them with exposed hardware on thick timber or steel frames for a confident, modern edge. A must-have detail that elevates craftsmanship and durability in any luxe workspace or loft setting.


Choose Hillman Grade 8 cap screws for reliable, high-strength fastening—perfect for your next heavy-duty build.

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: 37040353714

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Miriam Avila Sanchez
Louisville, US
★★★★★ 5
Needed for Sunday School
Color: Grey, Size: Wheel-6 Panel
This was purchase to divide two Sunday school children classes. It works wonderful, big enough, sturdy and with wheels, so is easy to move. Thanks God we can find everything in amazon.com. Delivery was fast and perfect. Thank you .
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Reviewed in the United States on December 6, 2024
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Melissa P
Los Angeles, US
★★★★★ 3
Not as tall as anticipated
Color: Black, Size: Wheel-6 Panel
Definitely not 6 feet tall, more like 5 1/2. Very sturdy and the fabric is thick. Works well for what we're using it for.
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Reviewed in the United States on November 30, 2025
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Vickie Dovel
Omaha, US
★★★★★ 5
Easy to put together
Color: Grey, Size: Wheel-6 Panel
Love them
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Reviewed in the United States on December 17, 2025
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884EVER
Lowell, US
★★★★★ 5
Great privacy screen
Size: 4 Panel-88"W, Color: Grey
Nice item, easy to assemble.
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Reviewed in the United States on January 15, 2026
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cara
New York, US
★★★★★ 5
Great privacy screen
Size: 6 Panel-119"W, Color: Beige
I have a studio apartment and the bathroom is in my bedroom. I bought this to section the area off so guests can use my bathroom without seeing my entire bedroom. This is perfect for that! It looks very nice and offers alot of privacy. The screen is fabric and good quality! I’m a middle aged woman and put it together myself in about 2 hours. Love this!!!
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Reviewed in the United States on September 27, 2025

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