Hillman 5/16 in. Diameter x 4-1/2 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 50-Pack
SKU: 369181031

Hillman 5/16 in. Diameter x 4-1/2 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 50-Pack

Sale price$45.89 Regular price$50.99
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Description

Hillman 5/16 in. Diameter x 4-1/2 in. Length Heat-Treated Zinc Steel Hex Head Cap Screw, 50-PackHillman Grade 5 Hex Head Cap Screws, 5 16" x 4 1 2", 50 Pack Durable grade 5 hex head cap screws made from heat treated steel with a zinc finish for strength and wear resistance. Partially threaded with a washer face under the head for a secure seal, ideal for use with nuts or tapped holes. Key Features: Grade 5 Strength: Heat treated steel provides reliable tensile strength for demanding projects Corrosion Resistant Finish: Zinc coating helps resist

Hillman Grade 5 Hex Head Cap Screws, 5/16" x 4-1/2", 50-Pack

Durable grade 5 hex head cap screws made from heat-treated steel with a zinc finish for strength and wear resistance. Partially threaded with a washer face under the head for a secure seal, ideal for use with nuts or tapped holes.


Key Features:

  • Grade 5 Strength: Heat-treated steel provides reliable tensile strength for demanding projects
  • Corrosion-Resistant Finish: Zinc coating helps resist rust and wear in general-purpose applications
  • Washer Face Under Head: Improved sealing and load distribution for secure fastening
  • Partially Threaded Shank: Enhanced shear strength and alignment in structural connections
  • Easy Tool Compatibility: Tightens with a wrench or drill for quick installation

Specifications Table:

Specification Details
Diameter 5/16 inch
Length 4-1/2 inch
Material Steel
Finish Heat Treated Zinc
Grade Grade 5
Head Type Hex head with washer face
Thread Type Coarse
Threading Partially threaded shank
Number in Package 50
Packaging Type Boxed
Unit of Measurement Listed as Metric (source) – dimensions provided in inches

Frequently Asked Questions (FAQ):

Q: Are these fully threaded?
A: No. They are grade 5 cap screws with partial threading along the shank.


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


Q: Do they include nuts or washers?
A: No. This pack includes only the hex head cap screws; purchase compatible nuts and washers separately.


Q: What is the corrosion protection?
A: A zinc finish provides general corrosion resistance suitable for many indoor and light outdoor uses.


Q: What thread type do these use?
A: Coarse thread, compatible with matching coarse-thread nuts and tapped holes.


Industrial Poise with Purpose

These hex head cap screws bring a crisp, engineered elegance to utilitarian installations. The zinc finish glints softly, pairing beautifully with raw woods and matte black hardware for a balanced, modern composition. Use them to anchor exposed shelving or brace metal frames where the hardware becomes part of the aesthetic. A small detail with big impact—essential for refined, functional design.


Secure your projects with dependable grade 5 strength—add this 50-pack of Hillman 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: 369181031

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Benjamin Butler
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★★★★★ 5
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Best athletic socks I’ve bought. I usually buy UA socks anyway and these are the best. Super soft and comfy. Fit snug and my feet don’t slide around in them.
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Reviewed in the United States on February 9, 2026
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Sigrid Inger
New York, US
★★★★★ 5
Much much better than the standard sock
Size: X-Large, Color: (001) Black / Black / Castlerock
These socks are superb. Lots of padding in the right places, snug where it should be snug & loose where you don't want it to bind. They are marked with an 'L' for left foot, & 'R' for the right foot (it makes a difference in the fit being perfect. They stay up on your heel & don't slide down
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Reviewed in the United States on April 20, 2026
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Chris
Port Orchard, US
★★★★★ 4
4 lefts vs 2 rights
Size: Medium, Color: (001) Black / Black / Castlerock, Size: Medium, Color: (001) Black / Black / Castlerock
I ordered a set of three. I ended up with four left socks and two right socks lol. Granted it doesn’t matter unless you’re OCD. JEEZ. Love the socks but not the attention to detail the sock company did on matching left/right marked socks.
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Reviewed in the United States on May 28, 2026
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Jill
Charlottesville, US
★★★★★ 5
My favorite socks
Size: Medium, Color: (001) Black / Black / Castlerock
I love love, love the left and right socks one has an L one has an R and they fit so well and they’re so comfy for running jogging or walking. They are my favorite socks.
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Reviewed in the United States on January 8, 2026
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vbgirlfla
Battle Creek, US
★★★★★ 5
Hold up to tough wear - definitely recommend
Size: X-Large, Color: (001) Black / Black / Castlerock
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Reviewed in the United States on April 1, 2026

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