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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Vickie Dovel
San Leandro, US
★★★★★ 5
Easy to put together
Color: Grey, Size: Wheel-6 Panel
Love them
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Reviewed in the United States on December 17, 2025
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raggmopp
Alexandria, US
★★★★★ 5
Great quality, very versatile
Size: 6 Panel-132‘’Wide, Color: Beige, Size: 6 Panel-132‘’Wide, Color: Beige
I'm very pleased with this item. It was not complicated to assemble but some items required dexterity and strength. The fabric panels are nice and tight and that's partly why it's a little hard to get that final screw in. I'm very pleased with the legs and the wheels. The metal components are nicely finished and feel substantial and endurable. I can easily fold this so many different ways… I can minimize the number of panels that are seen if desired and it can be straight or accordion. It's very stable which was hugely important to me because I'm fostering many many cats. It's not cheap looking and the light color fabric allows enough light to pass through that it doesn't darken the room substantially. I think the price was very reasonable
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Reviewed in the United States on May 7, 2026
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Steven Chandler
Dallas, US
★★★★★ 5
Affordable. And Good!
Size: 4 Panel-88‘’Wide, Color: Black
We use it everyday. All the pieces came and it was very easy to put up. High quality fabric, and easy to move around.
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Reviewed in the United States on May 21, 2026
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julia
Charlottesville, US
★★★★★ 1
Don’t buy
Size: 4 Panel-88‘’Wide, Color: Black
Cheaply made. Had to return. Not durable at all.
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Reviewed in the United States on April 13, 2026
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Amazon shopaholic
Louisville, US
★★★★★ 5
Good purchase
Size: 4 Panel-88‘’Wide, Color: Black
Very easy to assemble. Good quality. The material is thick enough to block the light and gives much needed privacy.
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Reviewed in the United States on February 3, 2026

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