SKU: 48064158664

Hillman 5/16 in. Diameter x 3/4 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screw, Fine Thread, 100-Pack

Sale price$25.19 Regular price$27.99
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Description

Hillman 5/16 in. Diameter x 3/4 in. Length Grade 5 Heat-Treated Zinc Steel Hex Head Cap Screw, Fine Thread, 100-PackHillman Grade 5 Hex Head Cap Screws, 5 16 in. x 3 4 in., 100 Pack These Hillman Grade 5 hex head cap screws are heat treated zinc plated steel for dependable strength and wear resistance. Sized 5 16 in. diameter by 3 4 in. length with fine threads, theyre ideal for fastening into tapped holes or use with nuts in automotive, machinery, and general construction projects. Key Features: Durable Grade 5 Steel: Heat treated zinc finish resists wear and

Hillman Grade 5 Hex Head Cap Screws, 5/16 in. x 3/4 in., 100-Pack

These Hillman Grade 5 hex head cap screws are heat-treated zinc-plated steel for dependable strength and wear resistance. Sized 5/16 in. diameter by 3/4 in. length with fine threads, they’re ideal for fastening into tapped holes or use with nuts in automotive, machinery, and general construction projects.


Key Features:

  • Durable Grade 5 Steel: Heat-treated zinc finish resists wear and corrosion
  • Hex Head Design: Washer face under head provides a better seal and load distribution
  • Fine Thread: Partially threaded shank offers strong hold in metal assemblies
  • Versatile Use: For tapped holes or paired with nuts; tighten with wrench or drill
  • Bulk Pack Value: 100 screws for shop, jobsite, or maintenance stock

Specifications Table:

Specification Details
Brand Hillman
Diameter 5/16 inch
Length 3/4 inch
Material Steel
Finish Heat-treated zinc
Grade Grade 5
Thread Type Fine
Threading Partially threaded shank
Head Type Hex head with washer face under head
Unit of Measurement SAE
Number in Package 100 pack
Packaging Type Boxed
Tightening Method Use wrench or drill/driver
Category Hex Bolts
Package Dimensions (L x W x H) 3.4 in x 3.5 in x 2 in
Package Weight 2.6 lbs

Frequently Asked Questions (FAQ):

Q: Are these fully or partially threaded?
A: They are Grade 5 screws that are partially threaded along the shank.


Q: What thread type do they use?
A: Fine thread.


Q: What tools are recommended for installation?
A: Tighten with a wrench or a drill/driver and the appropriate hex socket.


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


Q: What size are these screws?
A: 5/16 inch diameter by 3/4 inch length.


Industrial polish in a precise, compact fastener

The clean geometry of a hex cap screw brings a tailored order to utility—streamlined, purposeful, quietly strong. Here, the heat-treated zinc sheen adds a subtle luminosity, a refined note against raw wood or cool steel. Style them with matte-black hardware and brushed metal accents to echo their crisp, engineered profile. Consider this your small-but-mighty essential for projects that demand durability with a disciplined aesthetic.


Stock up on these Grade 5 fine-thread cap screws today for reliable, ready-to-go fastening on every project.

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: 48064158664

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4.4 ★★★★★
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M
Mark Weinberg
Bozeman, US
★★★★★ 5
Stable, attractive, and easy to turn into a table with your choice of top
Size: side table leg
The X-shape of the table legs - constructed with solid metal flanges, T-joints, X-joints and 1-inch diameter pipes - provides a strong and sturdy base for a wood top. The legs have adjustable feet pads to prevent scratches and ensure stability. Assembly of the legs is relatively simple (the instructions are clear) but you will need your own tools to attach a top. The industrial design is especially well suited to rec room or finished basement use. I am adding a 28" diameter raw edge slab of wood from a recently felled tree as the top and it is very attractive. (Photo unavailable because after I made certain it would work I sent the slab out for drying and finishing.) If you want a custom table and have a particular piece of wood you want to use, these legs are an excellent choice.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026
G
Grammar Guru
Carnegie, US
★★★★★ 5
Very nice kit: Beware it is NOT heavy duty plumbing pipe though!
Size: side table leg
I want to give this kit a high rating, but I need to address the "truth in advertising" bit since there may be an important disconnect between what you think you are getting and what actually comes in the box. Black plumbing used for shelving or table legs is part of an important niche in interior design. I like the industrial loft look myself and have a variety of glass, steel, and masonry elements in my home. This kit fits that look and provides plenty of "strength" for most domestic uses, like shelves or coffee tables. But they are NOT "industrial pipe" or "maximum durability pipe." Note the phrase "cast iron finish feet," which together with the other claims might lead you to think these are cast plumbing fittings. They are NOT! The feet and flanges feel like electrical conduit fittings, and the pipe sections are likely aluminum. They might be electrical or they might be multi-use, lightweight pipe. While all this might lead you to think that you're getting a truly retro, heavy-duty pipe kit made of black plumbing pipe, you are not. But, does it matter? Depends. I find the lighter pipe's smooth finish a nice "tone-down" from the rough plumbing look. All together, this kit provides plenty of strength for most furniture and the rustic pipe look, but with a nicer, lighter finish. To me that is a plus--this is a very nice kit and costs less that if you'd pieced it together from real plumbing parts (I priced it out to compare), and looks retro but cleaner. I knew what to expect because while I got this kit free on Vine, I had purchased a nearly identical kit from another seller last year. So, I'm giving it 5 stars for what it actually is and for the price, JUST BE AWARE THE NARRATIVE IS MISLEADING. Which is unfortunate because just like some people might want the heavier pipe, I'm betting more would be attracted to the look with a cleaner, lighter feel.
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Reviewed in the United States on December 31, 2025
M
Verified Purchase
Michelle bullard
Chelsea, US
★★★★★ 5
Stable and easy to assemble
I used these to support a heavy piece of countertop would to create a side table. Looks great and holds steady.
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Reviewed in the United States on February 15, 2023
C
Verified Purchase
Charles Clerici
Port Orchard, US
★★★★★ 5
Great
All pieces cut to perfection, went together perfectly
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 22, 2023
J
Verified Purchase
judith stevens
Natrona Heights, US
★★★★★ 1
Some of the components are plastic
This is not a heavy duty application what so ever . One of the flanges broke . We do not recommend this product
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Reviewed in the United States on July 5, 2024

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