Hillman 3/8 in. Diameter x 4 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screw, 50-Pack
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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Verified Purchase
Jillian
West Palm Beach, US
★★★★★ 4
Great Supplement for Sticks!
Color: Dogwood Flip N Chew, Size: Medium (Pack of 1)
This is a great choice for those with furiends that LOVE to chew on sticks. The only con is that once it gets to the curved loop, they have difficulty chewing the loop due to the size of it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 23, 2023
A
Verified Purchase
Amanda
Lake Worth, US
★★★★★ 5
My Corgi Loves These
Color: Dogwood Flip N Chew, Size: Medium (Pack of 1)
My dog loves to chew on these wooden toys. These are cheap to buy but that is because these wooden toys do not last long, and are not durable for heavy chewers. My dog enjoys gnawing on these for 30 minutes and after a few times, the wooden toy gets worn down with both ends starting to flake. I throw these out every week so he isn’t swallowing a bunch of wooden chips as he chews. However, I keep buying these because I think it’s still better than having him swallowing plastic bits from other plastic toys.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 20, 2024
E
Verified Purchase
Erica A Hawkins
Belleville, US
★★★★★ 5
Favorite chew
Color: Dogwood Flip N Chew, Size: Medium (Pack of 1)
My pups most favorite chew ever. We call it his pacifier. The sheer joy he has when we show him there’s a new one, and the bliss he has just chewing away. Labrador—hard chewer, it lasts about 2 weeks before it’s too small to be safe.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 27, 2025
S
Verified Purchase
Sarah
Natrona Heights, US
★★★★★ 5
Dogs are obsessed
Color: Dogwood Flip N Chew, Size: Medium (Pack of 1), Color: Dogwood Flip N Chew, Size: Medium (Pack of 1)
I have 2 large dogs and they are obsessed with dogwood line. I have purchased the large,super dogwood, and now the medium flip and they have all held up. They chew on them every day. They last for a long time and I have never had any problems with sharp pieces breaking off. It's a great for big chewers and they are pretty cheap to replace when they get worn. For the large and medium the shipping was pretty quick. The super dogwood always seems to take a month to get but I would still recommend.
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Reviewed in the United States on July 3, 2024
D
Verified Purchase
david smith
West Palm Beach, US
★★★★★ 5
Good for chewers!
Color: Dogwood Flip N Chew, Size: Medium (Pack of 1)
This lasted. My dog goes through rawhides.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 27, 2025

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