SKU: 21659797743

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

Sale price$46.79 Regular price$51.99
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Hillman 3/8 in. Diameter x 1-3/4 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 50-PackHillman Grade 5 Hex Head Cap Screws, 3 8" x 1 3 4", 50 Pack These Hillman hex head cap screws deliver strong, reliable fastening for structural and machinery projects. Made from heat treated zinc plated steel, they offer enhanced strength and wear resistance with a washer faced head for better sealing. Ideal for use with a nut or tapped hole where a durable Grade 5 fastener is required. Key Features: Durable Construction: Heat treated zinc plated

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

These Hillman hex head cap screws deliver strong, reliable fastening for structural and machinery projects. Made from heat-treated zinc-plated steel, they offer enhanced strength and wear resistance with a washer-faced head for better sealing. Ideal for use with a nut or tapped hole where a durable Grade 5 fastener is required.


Key Features:

  • Durable Construction: Heat-treated zinc-plated steel resists wear and corrosion
  • Reliable Strength: Grade 5, partially threaded for secure holding power
  • Better Seal: Washer face under the head improves load distribution and sealing
  • Versatile Use: Fits nuts or tapped holes; tighten with a wrench or drill
  • Bulk Convenience: 50-pack for jobsite and shop projects

Specifications Table:

Specification Details
Brand Name Hillman
Finish Heat Treated Zinc
Grade Grade 5
Head Diameter 3/8 inch
Length 1-3/4 inch
Material Steel
Number in Package 50 pack
Packaging Type Boxed
Thread Type Coarse
Unit of Measurement Imperial
Type Hex Head Cap Screw

Frequently Asked Questions (FAQ):

Q: Are these fully threaded?
A: They are partially threaded along the shank, providing strong grip with reduced shear risk.


Q: What tools are required for installation?
A: Tighten with a standard wrench or compatible drill/driver and hex socket.


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


Q: What thread type do these have?
A: Coarse thread suitable for general-purpose fastening with nuts or tapped holes.


Q: Do they include nuts or washers?
A: No, the package includes only the hex head cap screws.


Industrial Poise with Polished Strength

These hex cap screws bring crisp, architectural detailing to hardware moments that matter. The heat-treated zinc finish offers a sleek, silvery sheen, pairing strength with refinement. Use them to elevate exposed fastener designs on shelving brackets or utility furniture. A quiet essential for a tailored, luxe industrial look.


Secure your projects with dependable Grade 5 strength—add this 50-pack of Hillman 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: 21659797743

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 426 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
M
Verified Purchase
Mo
Charlottesville, US
★★★★★ 5
Love this
Color: Rustic Brown, Number Of Shelves: 4, Size: 15.7in
Love these shelves so easy to put up so beautifully made and really enjoy the way they set on my wall very sturdy also!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
J
Verified Purchase
Jason
Louisville, US
★★★★★ 5
Looks nice, easy to install
Color: Rustic Brown, Number Of Shelves: 2, Size: 22in
This shelf is lightweight, looks nice, and was easy to install. It comes with a little level to help you install it properly. There are plenty of mounting holes to choose from, so it is easy to screw it directly into a stud, or to just use holes that are convenient for you. It comes with a plethora of mounting hardware. I mounted mine a bit high up and chose to mount it upside down so that I wouldn't see the three screws that hold the shelf to the mounting bracket.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
M
Verified Purchase
Miah
Battle Creek, US
★★★★★ 5
Solid Floating Shelves 🛠️🏠
Color: Black, Number Of Shelves: 4, Size: 15.7in
I have installed four sets of the black floating shelves in my office. They are made of high quality materials, featuring a sophisticated black woodgrain finish with a natural texture. Supposedly, each unit can handle up to 22 pounds, though I would not recommend testing that limit with your vintage bowling ball collection if you value your flooring. They are awesome. The value is good for a set of two. Each shelf measures 22x7x1 (56x17x3 cm) inches, providing a decent amount of storage for books or decor. The installation was straightforward since the hardware for multiple wall types was included. They work well in the kitchen for spices or in the bedroom for personal belongings. One tip for a secure fit: use a level during installation and make sure the bracket is flush against the wall before sliding the shelf on, or your photos might look like they are sliding off a mountain 📐 These shelves offer a clean, modern look and stay stable once mounted correctly. They are a practical choice for adding functional display space to any room 🖼️
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
T
Verified Purchase
Tyler Kline
Port Orchard, US
★★★★★ 5
Good looking shelves and easy install - skip the included drywall anchors
Color: Black, Number Of Shelves: 2, Size: 22in
I installed these shelves in a bedroom to get things off my dresser and some decor. Once mounted they look really nice. The black finish looks clean and modern and they blend in well with the room. Installation was pretty straightforward. The metal bracket mounts to the wall first and then the shelf slides over the bracket. As long as you take your time lining things up it’s a simple project. One thing I strongly recommend is not using the white plastic self-drilling drywall anchors that come with the kit. I’ve used that style before on other projects and they tend to strip out easily and leave larger holes in drywall. I used better anchors instead and the shelves mounted much more securely. The rest of the hardware worked fine and once installed the shelves feel solid and hold items well. Pros - Clean modern look - Easy installation - Feels solid once mounted - Good size for books or decor Cons - The small level included isn’t very accurate — use your own level - One of the metal brackets was slightly bent out of the box but straightened out easily Helpful tip: Use your own level and better drywall anchors if you have them. It makes installation easier and the shelves will mount much more securely. Final thoughts: For the price these are nice looking floating shelves that install easily and work well for light storage and decor.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 13, 2026
C
Verified Purchase
Coffman, H
Birmingham, US
★★★★★ 5
Cheap, and effective!
Color: Black, Number Of Shelves: 4, Size: 15.7in
Looks good, works great, low cost. I'll be purchasing more in the future.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026

recommand products