Hillman 3/8 in. Dia x 2-1/2 in. L Heat-Treated Zinc Steel Hex Head Cap Screw, 50-Pack
SKU: 25717748291

Hillman 3/8 in. Dia x 2-1/2 in. L Heat-Treated Zinc Steel Hex Head Cap Screw, 50-Pack

Sale price$26.99 Regular price$29.99
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Description

Hillman 3/8 in. Dia x 2-1/2 in. L Heat-Treated Zinc Steel Hex Head Cap Screw, 50-PackHillman 3 8 in. x 2 1 2 in. Zinc Hex Head Cap Screws (50 Pack) Durable Grade 5 hex head cap screws made from heat treated zinc plated steel for strength and corrosion resistance. Ideal for securing machinery, automotive components, and structural assemblies requiring 3 8 in. 16 coarse threads. Key Features: Grade 5 Strength: Heat treated steel provides reliable clamping force for demanding applications Corrosion Resistant: Zinc plated finish helps

Hillman 3/8 in. x 2-1/2 in. Zinc Hex Head Cap Screws (50-Pack)

Durable Grade 5 hex head cap screws made from heat-treated zinc-plated steel for strength and corrosion resistance. Ideal for securing machinery, automotive components, and structural assemblies requiring 3/8 in.-16 coarse threads.


Key Features:

  • Grade 5 Strength: Heat-treated steel provides reliable clamping force for demanding applications
  • Corrosion Resistant: Zinc-plated finish helps protect against rust in indoor and light outdoor use
  • Standard Hex Head: Tightens with a wrench or driver for quick, secure installation
  • Coarse Thread 3/8"-16: Compatible with corresponding nuts and tapped holes
  • Contractor Pack: 50 pieces for efficient stocking and project throughput

Specifications Table:

Specification Details
Diameter 3/8 inch
Length 2-1/2 inch
Thread Size 3/8"-16
Thread Type Coarse, right-hand
Material Alloy steel
Grade Grade 5
Finish Zinc plated
Head Style Hex
Fastener Type Hexagon bolt / hex head cap screw
Measurement System Inch
Item Weight 4 lb (package)
Product Dimensions (package) 5 x 4.25 x 3.25 inches
Pack Quantity 50 pieces
Country of Origin Taiwan

Frequently Asked Questions (FAQ):

Q: What thread specification do these bolts use?
A: They are 3/8"-16 coarse thread, right-hand.


Q: Are nuts included with this pack?
A: No, nuts are not included and must be purchased separately.


Q: What grade are these cap screws?
A: They are Grade 5 heat-treated alloy steel.


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


Q: What tools are needed for installation?
A: Use a standard wrench or driver sized for the hex head to tighten into a nut or tapped hole.


Industrial Polish with Purpose

These zinc-kissed cap screws bring a quiet, engineered elegance to utilitarian builds. The crisp hex head is a subtle design note—clean, confident, and timeless. Style open shelving or exposed hardware with their silvery sheen for a refined workshop aesthetic. Essential pieces that marry function and finesse for elevated, everyday luxury.


Equip your project with dependable Grade 5 strength—add this 50-pack of Hillman hex head 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: 25717748291

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Amazon Customer
Whiting, US
★★★★★ 5
Great buy
Warm and fun
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Reviewed in the United States on February 12, 2026
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Sam R
Charlottesville, US
★★★★★ 5
Great quality
Size: 7-8 Toddler, Color: Moo-moo Cow
These are so cute and comfortable. My 3 yo can put them on himself and it is so cute that they light up. Fit as expected and are great quality. Even the dog hasn’t been able to tear them apart. Would buy more styles!
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Reviewed in the United States on January 27, 2025
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R. L. P.
Dallas, US
★★★★★ 5
Great brand
Size: 7-8 Toddler, Color: Moo-moo Cow
I usually order from their web site but they were out of stock so I decided to check Amazon and there they were. They are cute. The baby keeps them on his feet. They look warm because they are well cushioned. The quality is good and it makes a great gift because they light up.
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Reviewed in the United States on January 2, 2025
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T-RA
Houston, US
★★★★★ 5
Grandson LOVES them!
Purchased for my grandson. He LOVES them and especially because they light up! Very comfy..
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Reviewed in the United States on February 6, 2025
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Samia Kadri
Phoenix, US
★★★★★ 5
They make her happy
She hasn’t stopped since we put these on!!
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Reviewed in the United States on March 23, 2025

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