SKU: 10051929201

Hillman 3/8 in. Diameter x 4-1/2 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 50-Pack

Sale price$55.79 Regular price$61.99
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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18

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Description

Hillman 3/8 in. Diameter x 4-1/2 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 50-PackHillman Grade 5 Hex Head Cap Screws, 3 8" x 4 1 2", 50 Pack Durable grade 5 hex head cap screws made from steel with a heat treated zinc finish for added strength and corrosion resistance. Partially threaded with a washer face under the head for a secure seal, ideal for general construction and machinery fastening. Designed for use with a nut or tapped hole and tightened with a wrench or drill. Key Features: Grade 5 Strength: Heat treated steel

Hillman Grade 5 Hex Head Cap Screws, 3/8" x 4-1/2", 50-Pack

Durable grade 5 hex head cap screws made from steel with a heat-treated zinc finish for added strength and corrosion resistance. Partially threaded with a washer face under the head for a secure seal, ideal for general construction and machinery fastening. Designed for use with a nut or tapped hole and tightened with a wrench or drill.


Key Features:

  • Grade 5 Strength: Heat-treated steel provides reliable tensile strength for demanding applications
  • Corrosion-Resistant Finish: Zinc coating helps protect against rust and wear
  • Secure Seating: Washer face under the head delivers a better seal and load distribution
  • Partially Threaded Shank: Enhances alignment and clamping force in assemblies
  • Versatile Fastening: Use with nuts or tapped holes; compatible with wrench or drill tightening

Specifications Table:

Specification Details
Diameter 3/8 inch
Length 4-1/2 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 50 pack
Packaging Type Boxed
Use For use with a nut or 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 for improved clamping and alignment.


Q: What thread type do these screws use?
A: They use coarse threads suitable for general-purpose fastening.


Q: Can I use these outdoors?
A: Yes. The zinc finish offers corrosion resistance; for highly corrosive environments consider stainless or hot-dipped galvanized options.


Q: Do they include nuts or washers?
A: No. This pack contains only hex head cap screws; nuts and washers are sold separately.


Q: What tool is recommended for installation?
A: Tighten with a wrench or compatible driver bit on a drill.


Sleek, Industrial Fasteners with Enduring Strength

These hex head cap screws bring a refined, utilitarian clarity to hardware details, marrying clean geometry with a polished zinc sheen. The partially threaded shank and washer-faced head deliver a tailored fit that feels intentionally engineered. Style them with matte black brackets or brushed steel accents to echo their quiet sophistication. A dependable essential that elevates the craft and longevity of any build.


Secure your project with trusted strength—add this 50-pack of Hillman grade 5 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: 10051929201

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!NEO!
Fort Morgan, US
★★★★★ 1
Does not fit and stay properly. Pops off the screen on its own.
Color: for 2025-2026 Kia Carnival, Color: for 2025-2026 Kia Carnival
The bracket would not fit properly and keeps popping off.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 24, 2026
T
Verified Purchase
Tammy Jacques
West Palm Beach, US
★★★★★ 1
Kia phone holder, it’s worth it if you go buy some heavy duty tape!
Model: 2014-2018 Forte
If you’re going to buy this phone holder, you better get some Strong tape because when I put it in my car, the tape didn’t stick at all. I bought some clear thicker tape that is used for patching the liner in a pool, it’s waterproof and works in hot or cold temperatures and now the phone holder is in place and will not move and now works beautifully!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 5, 2025
C
Verified Purchase
Charlene Batalia
Grantham, US
★★★★★ 5
Great product
Model: 2010-2013 Forte
Very sturdy holds the phone great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 7, 2025
B
Verified Purchase
blu
Houston, US
★★★★★ 4
Strength
Model: 2019-2024 Forte
It does fit perfectly in my dash. I do wish that there was a was way to tighten the fit to the dash but other than that it does its job of holding my phone.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
V
Verified Purchase
Victoria Smith
West Palm Beach, US
★★★★★ 2
Only lasted a couple of weeks.
Model: 2014-2018 Forte
Was nice but after the first day, it would start to loosen and my phone would slide down. After a couple of weeks, it fell off from the car completely. It was a birthday gift so pretty disappointed.
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Reviewed in the United States on August 13, 2025

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