Hillman 3/8 in. Diameter x 2-1/4 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread, 50-Pack
SKU: 49041788946

Hillman 3/8 in. Diameter x 2-1/4 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread, 50-Pack

Sale price$27.89 Regular price$30.99
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

Hillman 3/8 in. Diameter x 2-1/4 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, Coarse Thread, 50-PackHillman Grade 5 Hex Cap Screws 3 8 in. x 2 1 4 in. (50 Pack) Durable Grade 5 hex head cap screws for strong, reliable fastening in steel and wood applications. Made from heat treated zinc plated steel with coarse threads and a washer face under the head for a secure seal. Key Features: Grade 5 Strength: Heat treated steel for higher tensile strength and wear resistance Corrosion Protection: Zinc finish helps resist rust in indoor and covered outdoor

Hillman Grade 5 Hex Cap Screws 3/8 in. x 2-1/4 in. (50-Pack)

Durable Grade 5 hex head cap screws for strong, reliable fastening in steel and wood applications. Made from heat-treated zinc-plated steel with coarse threads and a washer face under the head for a secure seal.


Key Features:

  • Grade 5 Strength: Heat-treated steel for higher tensile strength and wear resistance
  • Corrosion Protection: Zinc finish helps resist rust in indoor and covered outdoor uses
  • Coarse Thread: Provides strong hold and quicker assembly in general-purpose fastening
  • Washer Face Head: Built-in bearing surface under hex head for better sealing and load distribution
  • Convenient Value Pack: 50-piece box sized 3/8 in. diameter x 2-1/4 in. length

Specifications Table:

Specification Details
Diameter 3/8 inch
Length 2-1/4 inch
Material Steel
Finish Heat Treated Zinc
Grade Grade 5
Thread Type Coarse
Head Style Hex Head, washer face under head
Number in Package 50 pack
Packaging Type Boxed
Partially Threaded Yes
Category Hex Bolts / Hex Cap Screws

Frequently Asked Questions (FAQ):

Q: What tools are needed to install these screws?
A: Tighten with a wrench or a drill and appropriate hex socket.


Q: Are these fully threaded?
A: No, these are partially threaded along the shank (coarse thread).


Q: What grade are these bolts?
A: They are Grade 5 hex cap screws.


Q: Can these be used outdoors?
A: The zinc finish offers basic corrosion resistance; for prolonged exposure or harsh environments, consider galvanized or stainless options.


Q: What is included in the package?
A: A boxed 50-pack of 3/8 in. diameter x 2-1/4 in. length hex head cap screws.


Quiet Strength in a Sleek Zinc Finish

These hex cap screws bring a tailored precision to any build, their zinc sheen lending a crisp, utilitarian polish. The Grade 5 profile is the subtle star—clean edges, a washer-faced head, and confident proportions that feel engineered and elegant. Style them with matte black brackets or raw oak beams for an industrial-modern note that reads intentional. A small detail with a luxe impact, they’re the finishing touch that keeps structure and style in perfect conversation.


Choose these Grade 5 Hillman hex cap screws for dependable, clean-looking fastening that lasts.

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: 49041788946

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Milarah
Omaha, US
★★★★★ 5
Best money spent on a safe puppy chew toy
Size: X-Small, Size: X-Small
One of the best chew toys you can buy for your puppy! This kept him occupied for quite a while and it is one of his favorites.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
J
Verified Purchase
Justmy2centsworth
Phoenix, US
★★★★★ 4
Had a 6mo. old teething (English Bulldog) & this has entertained her for 9 mo.!
Size: Medium, Size: Medium
A chew toy lasting over 6 mo. is generally very good, for this breed & this brand! I kept it in her cage at night, so she wouldn't get board & start chewing on her paws. BC I felt it was a safe toy to use in this manner. "It was safe for my teething Bulldog." "Much, much better than other chew toys from this brand!" Others such as the Orange Pretzel they absolutely love! However, they have always splintered into very sharp edges of plastic, which cause the dogs mouth's to bleed (pokes their gums) & then NEED THROWN AWAY! This Key Chain Chew Toy was "really good" compared to other Nylabone brand chew toys, I have purchased! My girls mouth did not bleed from chewing on it:) "So, I am very pleased with this teething ring!" & would buy it again! Notice how the plastic splinters on the ends? Once the toy gets to his point I feel it is definitely time to be replaced! I would recommend this chew toy for a teething med. sized dog! The one I purchased was fairly large. & stayed together safely:) This is the only Nylabone Chew Toy I would ever, leave in a crate at night, thus far! Good Job Nylabone!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 5, 2022
K
Verified Purchase
Kristin H.
Lake Worth, US
★★★★★ 5
Great teething aid
Size: Small
Puppy loves these. I’ve repurchased a couple of times for my teething pup.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2026
A
Verified Purchase
ANGELA C
Fort Morgan, US
★★★★★ 5
My dogs love their "keys".
Size: X-Small
My dog loves this. The only negative is that he does chew through it and I have to pick up the pieces or hope that he's not eating it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 29, 2026
C
Verified Purchase
Cora Jane
Dallas, US
★★★★★ 3
Not long lasting for a chewer!
Size: Medium
These are massive! I have a golden retriever puppy and she chewed through the yellow ring very quickly. They keys are much more durable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026

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