Hillman 5/16 in. Diameter x 1 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, 100-Pack
SKU: 89930933617

Hillman 5/16 in. Diameter x 1 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, 100-Pack

Sale price$23.39 Regular price$25.99
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

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Description

Hillman 5/16 in. Diameter x 1 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screws, 100-PackHillman Grade 5 Zinc Hex Head Cap Screws, 5 16 in. x 1 in., 100 Pack These Hillman hex head cap screws deliver reliable fastening strength for automotive, machinery, and general construction projects. Made from grade 5 heat treated steel with a zinc finish, they resist wear and corrosion while providing secure clamping with a washer face under the head. Key Features: Durable Grade 5 Steel: Heat treated for increased tensile strength and wear

Hillman Grade 5 Zinc Hex Head Cap Screws, 5/16 in. x 1 in., 100-Pack

These Hillman hex head cap screws deliver reliable fastening strength for automotive, machinery, and general construction projects. Made from grade 5 heat-treated steel with a zinc finish, they resist wear and corrosion while providing secure clamping with a washer face under the head.


Key Features:

  • Durable Grade 5 Steel: Heat-treated for increased tensile strength and wear resistance
  • Corrosion-Resistant Zinc Finish: Helps protect against rust in indoor and covered outdoor applications
  • Hex Head with Washer Face: Provides better seating and load distribution for a tight, secure hold
  • Partially Threaded Shank: Ideal for clamping and alignment in structural and machinery joints
  • Convenient Bulk Pack: 100 screws sized 5/16 in. diameter x 1 in. length for high-volume jobs

Specifications Table:

Specification Details
Diameter 5/16 inch
Length 1 inch
Material Steel
Finish Heat Treated Zinc
Grade Grade 5
Head Style Hex head with washer face
Thread Type Coarse (USS)
Threading Partially threaded shank
Number in Package 100 pack
Packaging Type Boxed
Tightening Method Wrench or drill/driver
Unit of Measurement Imperial (size listed in inches)

Frequently Asked Questions (FAQ):

Q: What tools are needed for installation?
A: Tighten with a wrench or compatible socket; a drill/driver with socket adapter may also be used.


Q: Are these fully or partially threaded?
A: They are partially threaded along the shank, typical of hex cap screws.


Q: What is the thread type?
A: Coarse thread (USS).


Q: Can these be used outdoors?
A: The zinc finish offers basic corrosion resistance; for harsh or wet environments, consider stainless or hot-dipped galvanized fasteners.


Q: What grade are these bolts?
A: Grade 5, suitable for medium-strength applications.


Quiet Strength, Clean Hardware Poetry

In any refined space, the details do the heavy lifting—these zinc-kissed cap screws bring a polished, utilitarian elegance. I love the crisp hex head with its subtle washer face, delivering both form and function. Style them with brushed steel brackets or matte-black hardware to create a nuanced contrast that feels intentional. Essential, dependable, and chic—this is the hardware that makes luxury look effortless.


Equip your next project with dependable strength—add this 100-pack of Hillman grade 5 hex head 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: 89930933617

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RS - Las Vegas, NV
Fort Morgan, US
★★★★★ 5
Great Fit, No Problems.
Size: 1 Count
Great Factory part that's easy to install and performs as one would expect. Have purchased this part many times for my wife's Jeep and never had any problems.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 30, 2026
W
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wayne
Bozeman, US
★★★★★ 5
It is original part
Size: 1 Count
Amazon says this does not fit my town and country but it does. Have used it before so knew Amazon site was wrong
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Reviewed in the United States on April 8, 2026
M
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Manzo
Whiting, US
★★★★★ 5
Works as it should
Size: 1 Count
It fits my 2017 Chrysler 300S 3.6L and yet to have any issues. It better work as it is a MOPAR filter. I am happy with it.
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Reviewed in the United States on July 13, 2025
A
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Amazon Customer
Belleville, US
★★★★★ 4
Correct part (Mopar MO-349) but shipping method could be improved.
Size: 1 Count, Size: 1 Count
I received what I ordered, Mopar MO-349 oil filters. However, they were shipped in what looked like an oversized paper bag and the boxes that contained the filters were crushed (see picture). They should have been shipped in a small box instead of a giant paper bag. The filters look ok but I guess I'll know for sure when I try to use them. Plus 4 stars for the product. Minus 1 star for Amazon shipping.
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Reviewed in the United States on April 25, 2026
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John
Charlottesville, US
★★★★★ 5
You can't go wrong buying OEM oil filters
Size: 1 Count
Good price cheaper than buying from Dealer
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Reviewed in the United States on March 10, 2026

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