SKU: 34623068629

Hillman 1/4 in. Diameter x 1 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, Coarse Thread, 100-Pack

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Description

Hillman 1/4 in. Diameter x 1 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, Coarse Thread, 100-PackHillman Grade 8 1 4 in. x 1 in. Hex Head Cap Screws (100 Pack) Heavy duty Grade 8 hex head cap screws built from heat treated steel for high strength fastening. Coarse threaded and partially threaded shanks provide secure clamping in machinery, automotive, and structural applications. Key Features: Grade 8 Strength: Heat treated steel delivers high tensile strength for demanding applications Coarse Thread: Reliable engagement and easier starts in

Hillman Grade 8 1/4 in. x 1 in. Hex Head Cap Screws (100-Pack)

Heavy-duty Grade 8 hex head cap screws built from heat-treated steel for high-strength fastening. Coarse-threaded and partially threaded shanks provide secure clamping in machinery, automotive, and structural applications.


Key Features:

  • Grade 8 Strength: Heat-treated steel delivers high tensile strength for demanding applications
  • Coarse Thread: Reliable engagement and easier starts in tapped holes or with nuts
  • Partially Threaded Shank: Provides superior shear strength and precise clamping
  • Washer Face Head: Built-in bearing surface under head helps improve seal and load distribution
  • Bulk Value: 100-count boxed pack for shop, jobsite, or inventory needs

Specifications Table:

Specification Details
Diameter 1/4 inch
Length 1 inch
Material Heat-treated steel
Grade Grade 8
Thread Type Coarse
Thread Coverage Partially threaded shank
Head Style Hex head with washer face
Finish/Color Heat-treated yellow dichromate finish
Number in Package 100 pack
Packaging Type Boxed

Frequently Asked Questions (FAQ):

Q: What size are these screws?
A: Each screw is 1/4 inch diameter by 1 inch length, coarse thread.


Q: Are these fully threaded?
A: No. They are partially threaded along the shank for added shear strength.


Q: What material and grade are they?
A: Heat-treated steel, Grade 8 for high strength.


Q: Do they include nuts or washers?
A: No. This pack includes only hex head cap screws.


Q: How are they installed?
A: Tighten with a wrench or socket; use with a matching 1/4 in. coarse-thread nut or tapped hole.


Industrial Strength, Clean Hardware Detail

There’s a quiet elegance in well-made hardware—these Grade 8 hex cap screws bring a crisp, engineered polish to any build. The washer-faced head adds a refined silhouette, while the heat-treated steel reads as confidently robust. Style them with darkened steel brackets or raw oak for a modern, utilitarian edge. Essential hardware that elevates the craft of construction with enduring strength.


Equip your project with high-strength reliability—add this 100-pack of Grade 8 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: 34623068629

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4.5 ★★★★★
Based on 20 reviews
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C
Verified Purchase
Crabman
Los Angeles, US
★★★★★ 5
Works well on 2003 Corvette.
Color: Carbon Fiber, Size: 2 Pack
I purchased these for usage in my 2003 Corvette convertible. As much as I enjoy the vehicle, they are extremely insufficient for storage. No "usable" built-in cup holder, no pockets and no flat area that can hold a cell phone. The console and glove box are not ideal in this day and age since the phones are used constantly. Enter these excellent little holders. They mount perfectly on the central vent in the dash. If you slide the bases as far as possible to each side and then tighten them down, the base will overlap the non-moving portion of the vent and keep the unit quite stable. I would suspect this is applicable for any vehicle that has the traditional flat vent fins. The holder has a hook that when fished into the vent, clasps over the back of one of the fins. By hooking the fin, once tightened down (careful not to over due this as the vents are just plastic) the installation is as stable as you can ask for vs any of those goofy clamp types that slide off quite easily, especially as they age and sun softens the pads. Benefit from my mistakes on those bad purchases and stay away from clamp mounts. If you have flat fin vents and are looking for a reliable means to mount a phone, this may be just right for you. Best of luck.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
M
Verified Purchase
Michele D.
Pawtucket, US
★★★★★ 4
Good product, but...
Color: Dark Black, Size: 1 Pack
Easy to install. Like the product. The holder does not hold the phone position. It flops down alot.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 10, 2026
M
Verified Purchase
Mary
Louisville, US
★★★★★ 5
The Perfect Phone Mount.
Color: Dark Black, Size: 1 Pack
It’s the perfect size, easy to install, and works perfectly. I have a 15 pro max iPhone, and it fits perfectly.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 14, 2026
D
Verified Purchase
Darth Fader
New York, US
★★★★★ 5
Well built and removes cleanly.
Color: Dark Black, Size: 1 Pack
Seems to be very solid and it was a little bit tricky to get it located on the vent blade properly, though that might just be due to the vents shape in my Highlander. I really like that it can be easily moved from one vehicle to another if needed without leaving adhesive residue like my last mount did. The only concern I have is whether the vent blade will support the weight long term. Time will tell I guess. EDIT: This fits all of the vents on my 2011 Highlander great. On my 2022 Highlander it will only attach to the center vents and then just barely hooks on after angling the vent blades enough for the hooks to grab. Even then the mount only makes contact at the very top and bottom of the vent opening. It works, but I wouldn't recommend it as ideal.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2026
F
Verified Purchase
Fred
Natrona Heights, US
★★★★★ 5
Works great
Color: Dark Black, Size: 1 Pack
Great product which is easy to use and affordable price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 17, 2026

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