Hillman 1/2 in. Diameter x 5-1/2 in. Length Heat-Treated Steel Hex Head Cap Screw, 25-Pack
SKU: 51686577453

Hillman 1/2 in. Diameter x 5-1/2 in. Length Heat-Treated Steel Hex Head Cap Screw, 25-Pack

Sale price$79.19 Regular price$87.99
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Description

Hillman 1/2 in. Diameter x 5-1/2 in. Length Heat-Treated Steel Hex Head Cap Screw, 25-PackHillman Grade 8 Hex Head Cap Screws, 1 2" x 5 1 2", 25 Pack Heavy duty hex head cap screws made from heat treated steel for high strength fastening. Grade 8, partially threaded with a washer face for secure seatingideal for machinery, automotive, and structural applications. Key Features: Grade 8 Strength: Heat treated steel delivers superior tensile performance for demanding jobs Washer Face Head: Built in bearing surface under the hex head improves

Hillman Grade 8 Hex Head Cap Screws, 1/2" x 5-1/2", 25-Pack

Heavy-duty hex head cap screws made from heat-treated steel for high-strength fastening. Grade 8, partially threaded with a washer face for secure seating—ideal for machinery, automotive, and structural applications.


Key Features:

  • Grade 8 Strength: Heat-treated steel delivers superior tensile performance for demanding jobs
  • Washer Face Head: Built-in bearing surface under the hex head improves load distribution and seal
  • Partially Threaded Shank: Enhanced shear strength where unthreaded section bears load
  • Coarse Thread Compatibility: Reliable assembly with standard coarse-thread nuts and tapped holes
  • Bulk Pack Convenience: 25-pack keeps projects moving with consistent, matching fasteners

Specifications Table:

Specification Details
Diameter 1/2 inch
Length 5-1/2 inch
Material Steel
Finish Heat-treated; yellow dichromate style noted
Grade Grade 8 (USS)
Head Type Hex head with washer face
Thread Type Coarse
Threading Partially threaded along the shank
Number in Package 25 pack
Packaging Type Boxed
Category Hex Bolts / Hex Head Cap Screws
Package Dimensions (L x W x H) 6.8 in x 4.5 in x 3.3 in
Package Weight 8.7 lb

Frequently Asked Questions (FAQ):

Q: What size wrench or socket do I need?
A: These are 1/2-inch diameter hex head cap screws; select a socket sized for the corresponding hex head across flats per Grade 8 spec (check your hardware set).


Q: Are these fully threaded?
A: No. They are partially threaded to provide better shear strength at the unthreaded shank.


Q: What material and finish are these screws?
A: They are steel, heat-treated to Grade 8 with a yellow dichromate-style finish noted for strength and wear resistance.


Q: What thread type do they use?
A: Coarse thread, suitable for use with matching coarse-thread nuts or tapped holes.


Q: How many are included?
A: This box contains 25 screws.


Industrial Strength, Streamlined Presence

There’s a quiet elegance in precision hardware—these hex cap screws bring a tailored, industrial note to any build. The crisp washer-faced head feels intentional, a small but striking detail that elevates utility to design. Use them to accent exposed joinery on workshop cabinetry or a rugged shelving system for a subtly architectural moment. Their Grade 8 strength ensures beauty backed by unwavering performance—luxury in the details.


Equip your next build with Grade 8 confidence—add this 25-pack of Hillman hex head cap screws to your cart now.

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: 51686577453

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Product Reviews
A
Verified Purchase
Amazon Customer
Charlottesville, US
★★★★★ 5
Nice and sturdy
Color: Grey, Size: Wheel-8 Panel
Good privacy wall
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
S
Verified Purchase
Steven J.
Massapequa, US
★★★★★ 1
Super Low Quality/Unacceptable QC
Color: Black, Size: Wheel-6 Panel
I spent probably about an hour putting it together, only to take it right back apart and pack it up to return. The dimples for half the poles were on the wrong side (double and triple checked to make sure they couldn't be spun around. The threaded ends for the wheels were freely spinning on all but 2 wheels, making it impossible to actually tighten them fully. Once it was all put together, the screens could not be folded up to neatly put it aside when not in use. All in all, this was shamefully low quality for the money spent.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 22, 2024
M
Verified Purchase
Miriam Avila Sanchez
Dallas, US
★★★★★ 5
Needed for Sunday School
Color: Grey, Size: Wheel-6 Panel
This was purchase to divide two Sunday school children classes. It works wonderful, big enough, sturdy and with wheels, so is easy to move. Thanks God we can find everything in amazon.com. Delivery was fast and perfect. Thank you .
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Reviewed in the United States on December 6, 2024
M
Verified Purchase
Melissa P
West Palm Beach, US
★★★★★ 3
Not as tall as anticipated
Color: Black, Size: Wheel-6 Panel
Definitely not 6 feet tall, more like 5 1/2. Very sturdy and the fabric is thick. Works well for what we're using it for.
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Reviewed in the United States on November 30, 2025
V
Verified Purchase
Vickie Dovel
New York, US
★★★★★ 5
Easy to put together
Color: Grey, Size: Wheel-6 Panel
Love them
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 17, 2025

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