Hillman 1/4 in. Diameter x 3-1/2 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 100-Pack
SKU: 58916092340

Hillman 1/4 in. Diameter x 3-1/2 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 100-Pack

Sale price$24.77 Regular price$27.52
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Description

Hillman 1/4 in. Diameter x 3-1/2 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 100-PackHillman 1 4" x 3 1 2" Hex Head Cap Screws (100 Pack) These Hillman Grade 5 hex head cap screws are made from durable steel with a heat treated zinc finish for strength and corrosion resistance. Sized 1 4 in. diameter by 3 1 2 in. length, theyre partially threaded and ideal for securing components with a nut or into tapped holes. Key Features: Durable Construction: Heat treated steel with zinc finish for strength and corrosion resistance Grade 5

Hillman 1/4" x 3-1/2" Hex Head Cap Screws (100-Pack)

These Hillman Grade 5 hex head cap screws are made from durable steel with a heat-treated zinc finish for strength and corrosion resistance. Sized 1/4 in. diameter by 3-1/2 in. length, they’re partially threaded and ideal for securing components with a nut or into tapped holes.


Key Features:

  • Durable Construction: Heat-treated steel with zinc finish for strength and corrosion resistance
  • Grade 5 Performance: Suitable for medium-to-high strength fastening applications
  • Hex Head Design: Wrench-ready head with washer face for reliable torque and grip
  • Partially Threaded Shank: Enhances shear strength where unthreaded shank bears load
  • Bulk Convenience: 100-pack boxed for jobsite efficiency and inventory savings

Specifications Table:

Specification Details
Brand Hillman
Diameter 1/4 in
Length 3-1/2 in
Material Steel
Finish Heat Treated Zinc
Grade 5
Head Type Hex Head Cap Screw
Thread Type Coarse
Threading Partially threaded
Number in Package 100
Packaging Type Boxed

Frequently Asked Questions (FAQ):

Q: Are these fully threaded?
A: No. They are partially threaded Grade 5 hex cap screws.


Q: What tools are needed for installation?
A: Tighten with a wrench or driver/socket sized for 1/4 in. hex cap screws and use with a matching nut or tapped hole.


Q: What is the thread type?
A: Coarse thread (UNC).


Q: What material and finish are used?
A: Steel with a heat-treated zinc finish for added corrosion resistance.


Q: How many screws are included?
A: 100 screws per boxed pack.


Industrial Poise in a Polished Zinc Finish

A crisp hex silhouette brings a refined, utilitarian rhythm to cabinetry, brackets, and exposed hardware moments. The heat-treated zinc sheen adds a quiet luster, catching light without shouting. Use these in sightline applications—think open shelving or garage workstations—to unify function and form. It’s the subtle hardware upgrade that makes everyday details feel impeccably considered.


Upgrade your fastening projects with these Grade 5, zinc-finished Hillman hex cap screws—add the 100-pack 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: 58916092340

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4.7 ★★★★★
Based on 1609 reviews
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Shopper
San Leandro, US
★★★★★ 5
Good stuff !
Model: 36 SqFt(3.4 SqM), Model: 36 SqFt(3.4 SqM)
This is an excellent product. Easily moldable, cuttable with good scissors or razor knife, very sticky, works great. This pack was enough to do all 4 doors on a crew max truck, and I went wild on the fronts. I used 9 peices on each rear door which was just enough, and the rest on the fronts. I doubled up layers and even used some on the back of the door panels. If you follow the instructions and dont go wild you might even have extra left over. It works just like you would imagine. Without doing the entire cab there will still be road noise but this helped noise, better audio, no buzzing door panels, terrific improvement. It is kind of heavy, so extra weight is added to truck, but that really isnt a bad thing. It is noticable but in a good way. Get it. Use it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 20, 2026
O
Verified Purchase
Odin M Turner
Massapequa, US
★★★★★ 4
Good product
Model: 36 SqFt(3.4 SqM)
Easy to roll out. Works great  Why did you pick this product vs others?: Fair price for the amount of coverage, good quality  Works well: Easy to install, rolls out great. Forms to contours well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 13, 2025
B
Verified Purchase
BRIAN HEATH
Dallas, US
★★★★★ 5
Great product
Model: 36 SqFt(3.4 SqM)
I used this on the doors of a Toyota Tacoma, worked as it described. Reduced the road noise significantly.. Need to buy another box for the floor and roof of the truck..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026
T
Verified Purchase
TimtheK
Houston, US
★★★★★ 5
Great product - Add foam product for complete solution
Model: 36 SqFt(3.4 SqM)
Used in two cars with speaker upgrades. Easy to install but get the roller for assured adhesion.removes "tinnyness" from large metal resonators. Use with foam absorptive material for a complete system.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 14, 2026
T
Verified Purchase
TitothePinkTorpedo
Lowell, US
★★★★★ 5
Great Product for noise reduction in Auto Use.
Model: 36 SqFt(3.4 SqM)
I use this on many builds to dampen the metal echo in cars, vans, and trucks. Just one sheet in the center of a body panel is a huge difference maker. You can also cover the entire surface and get added insulation value. The noise is greatly depleted and it's easy to install with a roller tool. Looks Great when done. Good Product I will use again!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 29, 2025

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