SKU: 25717748291

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

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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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Based on 28 reviews
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Pepper Ann
Lake Worth, US
★★★★★ 3
Good Product But I Need Something Indestructible
These were advertised for aggressive chews, but my 2 mini schnauzers puppies quickly bit off the little prongs within an hour. I didn't put food inside them; I just wanted them for chew toys. Well, they were not hard enough for them. The size was perfect for puppies, but they were not durable enough for my 'heavy' chewers. I hate I can't find chew toys they can't destroy! Now they bring in sticks and mess the house up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2025
B
Verified Purchase
Bricksey
Belleville, US
★★★★★ 4
Works great with toothpaste.
They lasted longer than most toys but eventually my dog was able to tear them up.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 22, 2023
S
Verified Purchase
sue mulligan
Belleville, US
★★★★★ 5
Tough toys
The dogs really enjoy chewing on these toys. Very sturdy and you can put treats inside for lasting pleasure
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Reviewed in the United States on January 13, 2026
D
Verified Purchase
DogMom22
Pawtucket, US
★★★★★ 5
We have three of these (one for each dog)
My dogs love these. I don’t put any paste in them. I stuff them with their dinner kibbles and then use something like peanut butter or bread on the ends to keep the kibbles in for a bit while they toss these and roll them around. Keeps them quite busy for a long time AND the best part is I have had 1 for months (and bought more) but this toy has stood up to hard chewing for as long as we’ve had them.
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Reviewed in the United States on July 12, 2024
K
Verified Purchase
Katie
Lake Worth, US
★★★★★ 5
Cute toy!
Color: Alligator(Green)
Can’t wait to give it to my puppies due to come soon. Hope they like it as much as I do.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 23, 2026

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