SKU: 6791821376

Hillman 3/8 in. Dia x 1-1/2 in. L Heat-Treated Zinc Steel Hex Head Cap Screw, 100-Pack

Sale price$43.19 Regular price$47.99
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Description

Hillman 3/8 in. Dia x 1-1/2 in. L Heat-Treated Zinc Steel Hex Head Cap Screw, 100-PackHillman Grade 5 Hex Head Cap Screw, 3 8 in. x 1 1 2 in., 100 Pack Heavy duty hex head cap screws engineered from heat treated zinc plated steel for strong, wear resistant fastening. Grade 5 strength with partially threaded shank and washer face under the head delivers secure clamping in machinery, automotive, and structural applications. Key Features: Grade 5 Strength: Heat treated steel provides robust tensile strength for demanding projects

Hillman Grade 5 Hex Head Cap Screw, 3/8 in. x 1-1/2 in., 100-Pack

Heavy-duty hex head cap screws engineered from heat-treated zinc-plated steel for strong, wear-resistant fastening. Grade 5 strength with partially threaded shank and washer face under the head delivers secure clamping in machinery, automotive, and structural applications.


Key Features:

  • Grade 5 Strength: Heat-treated steel provides robust tensile strength for demanding projects
  • Corrosion-Resistant Finish: Zinc plating helps protect against rust and wear
  • Washer Face Head: Built-in washer face improves seal and load distribution under the head
  • Partially Threaded Shank: Coarse threads with an unthreaded section for precise alignment and strong clamping
  • Versatile Use: Ideal for use with a nut or tapped hole; tighten with a wrench or drill

Specifications Table:

Specification Details
Diameter 3/8 inch
Length 1-1/2 inch
Material Steel
Finish Heat Treated Zinc
Grade Grade 5
Head Type Hex head with washer face
Thread Type Coarse
Threading Partially threaded along shank
Number in Package 100
Packaging Type Boxed
Use For use with a nut or in a tapped hole; tighten with a wrench or drill
Package Height 3.5 in
Package Width 4.3 in
Package Length 4.3 in
Package Weight 5.6 lbs

Frequently Asked Questions (FAQ):

Q: Are these fully or partially threaded?
A: They are Grade 5 cap screws with a partially threaded shank and coarse thread.


Q: What size and length are the screws?
A: Each screw is 3/8 inch diameter and 1-1/2 inch length.


Q: Can these be used outdoors?
A: The zinc finish offers basic corrosion resistance, suitable for many indoor and light outdoor applications; for harsh environments, consider galvanized or stainless options.


Q: Do they have a built-in washer?
A: They feature a washer face under the hex head to improve sealing and load distribution.


Q: How many are in the box?
A: The package contains 100 screws.


Industrial polish that anchors the look

These hex cap screws bring a crisp, tailored hardware detail that feels both utilitarian and refined. The zinc sheen adds a subtle gleam, while the washer-faced head creates a clean, purposeful silhouette. Use them to unify exposed-joint furniture or workshop shelving for a cohesive, engineered aesthetic. A small detail with big impact—essential hardware for elevated, durable design.


Secure your projects with Grade 5 strength—add this 100-pack of Hillman hex 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: 6791821376

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Elizabeth
Carnegie, US
★★★★★ 5
it was a bit too hard/small for my Great Pyrenees, so it didn’t work out for my dog specifically
Color: 1PC-Beef-Red
is good quality and feels very durable and well made. The material is strong and holds up well against chewing, especially for aggressive chewers. It’s also a nice design and seems safe for dogs to use.
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Reviewed in the United States on May 3, 2026
D
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Debra Supeck
Natrona Heights, US
★★★★★ 4
Indestructible dog toy
Color: 1PC-Beef-Red, Color: 1PC-Beef-Red
I have an 85 lb Pitbull and he loves to chew on those kind of hard bones but the meat flavor and scent is only in the middle the knobs on the end are just plain nylon and yes it is taking him a long time to get through them but little white fibers keep coming off I find them on the couch and he nibbles and tries to eat it so I believe he's eating the nylon and still has yet to get to where the beef flavor is in the center he doesn't chew from the middle he goes from the end all of his other chew toys he has he has demolished this one not so much I only gave four stars because my dog doesn't like it so much it is a very good sturdy toy though and has a good beefy smell. And a fair price.
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Reviewed in the United States on April 11, 2026
C
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Cf637
Louisville, US
★★★★★ 5
Long lasting and the dogs really like them
Color: 1PC-Beef-Red
I purchased these over a year ago and they are still standing up to 2 heavy chewers and a medium dog.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026
D
Verified Purchase
David w.
Dallas, US
★★★★★ 5
For aggressive chewers means just that!
Color: 1PC-Beef-Red
Large size means large. Very well constructed and made for the aggressive chewer I have at home.
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Reviewed in the United States on June 11, 2026
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Tatoani
Boise, US
★★★★★ 3
Not completely indestructible but definitely long-lasting with plastic bits everywhere
Color: 1PC-Beef-Red
It's destructible it just takes a long time and tons of tiny little plastic pieces everywhere and even in your dog's stomach would not recommend due to wear and tear on dog's teeth and the plastic chips off.
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Reviewed in the United States on May 17, 2026

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