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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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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wes
Whiting, US
★★★★★ 5
Simple installation
Size: 16inch, Color: 2 Sets
Super easy to put together and came just as it said it would and the directions were very thorough and simple!
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Reviewed in the United States on February 1, 2026
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Paula Ricketts
Belleville, US
★★★★★ 5
Super cute!
Size: 16inch, Color: 2 Sets
Very nice for our coffee nook and sturdy too!
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Reviewed in the United States on January 28, 2026
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Verified Purchase
Violeta Mendez
West Palm Beach, US
★★★★★ 4
Nice decor for a coffee station
Size: 16inch, Color: 1 Set
I returned this item because it was too big for the area I needed it for. The shelf is a less sturdy than I expected, I think it would hold cups and accessories. It was a nice size and would do well in any coffee station.
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Reviewed in the United States on May 3, 2025
R
Verified Purchase
Rebecca M. O'Brien
San Leandro, US
★★★★★ 5
Problems solved quickly
Size: 16inch, Color: 2 Sets
I ordered this shelving unit because I love the way it looks and it fit the space it's intended for perfectly. When it arrived it looked exactly as described. So happy, then I discovered no hardware. Dread. Memorial Day weekend, 11pm. I took a chance and got ahold of Amazon. Within 30 minutes they instructed me on how to get ahold of the manufacturer. And by the time I went to bed at 6am the manufacturer was working on a plan to get me the parts needed. Originally it was going to take a month to get the parts sent from China, but they came up with a better solution. Not only do I have the parts that were missing but I received them two days ago. Delivery was expected today the 5th. I decided to give 5 stars because initially yes I was upset, but they did their due diligence to make sure I received what was ordered and in a timely manner.
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Reviewed in the United States on June 5, 2025
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Amazon Customer
Waukegan, US
★★★★★ 5
Holds a Lot!
Size: 16inch, Color: 2 Sets
These shelves hold a good bit of smaller items and I love that cups can hang from the hooks. The shelf is real wood and a lovely stain. I wish the baskets didn't come all the way out, but sometimes that's more handy than fishing around inside them while they're in place. I bought four of these shelving units (they're packaged as two) to hang together as a group on a kitchen wall over my coffee station. They make quite an impression when grouped together. Although these shelving units are not large, they are big enough and the shelf is deep enough to hold things of substance. A great way to organize an area and make it look neat.
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Reviewed in the United States on January 6, 2025

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