SKU: 2107990905

Hillman 3/8 in. Dia x 4 in. L Heat-Treated Zinc Steel Hex Head Cap Screw (50-Pack)

Sale price$43.19 Regular price$47.99
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Description

Hillman 3/8 in. Dia x 4 in. L Heat-Treated Zinc Steel Hex Head Cap Screw (50-Pack)Hillman 3 8 in. x 4 in. Zinc Hex Head Cap Screws, 50 Pack Heavy duty Hillman hex head cap screws made of heat treated zinc plated steel for durable fastening. Sized 3 8 in. diameter by 4 in. length with coarse 3 8 16 machine threads, ideal for use with a nut or tapped hole in general construction and repair. Key Features: Durable Construction: Heat treated zinc plated steel resists wear and corrosion High Torque Capability: Hex cap head with machine

Hillman 3/8 in. x 4 in. Zinc Hex Head Cap Screws, 50-Pack

Heavy-duty Hillman hex head cap screws made of heat-treated zinc-plated steel for durable fastening. Sized 3/8 in. diameter by 4 in. length with coarse 3/8-16 machine threads, ideal for use with a nut or tapped hole in general construction and repair.


Key Features:

  • Durable Construction: Heat-treated zinc-plated steel resists wear and corrosion
  • High Torque Capability: Hex cap head with machine threads for strong clamping force
  • General Purpose Use: Grade 5 strength suits a wide range of projects
  • Coarse Thread: 3/8-16 thread for reliable hold in tapped holes or with nuts
  • Bulk Value: Convenient 50-pack for jobsite or shop replenishment

Specifications Table:

Specification Details
Diameter 3/8 in.
Length 4 in.
Thread Size 3/8-16
Thread Type Coarse
Head Type Hex Cap
Material Steel
Finish Zinc
Grade 5
Heat Treated Yes
Pack Quantity 50 count
Nuts Included No
Tightening Method Wrench or drill driver
Category Hex Bolt
Weight 27.26 lb
Package Dimensions 11 in L x 5.85 in W x 9.4 in H

Frequently Asked Questions (FAQ):

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


Q: What wrench size is needed?
A: Tighten with a standard wrench or driver sized for a 3/8 in. hex cap screw head.


Q: What is the thread specification?
A: Coarse 3/8-16 machine threads.


Q: What grade are these bolts?
A: Grade 5 for balanced strength and workability.


Q: Where should these be used?
A: Suitable for general fastening into tapped holes or with matching nuts in construction, automotive, and maintenance applications.


Industrial Polish, Purposeful Strength

These zinc-kissed cap screws bring a subtle, silvery sheen that pairs beautifully with raw woods and painted steel. The crisp hex head reads precise and intentional—an elevated detail on open-shelf brackets or custom hardware. Style them with matte black fittings for contrast, or echo their finish with brushed nickel accents. A small component with big impact, they anchor designs with quiet, functional luxury.


Outfit your next project with reliable, Grade 5 strength—add this 50-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: 2107990905

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Jay Hernandez
Pawtucket, US
★★★★★ 5
Perfect fit.
Great fitment, very happy.
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Reviewed in the United States on May 18, 2023
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brian S.
San Leandro, US
★★★★★ 1
Not good.
Do not fit properly at all. It's loose and wobbly and that is not good.
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Reviewed in the United States on November 5, 2023
B
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brian
Lexington, US
★★★★★ 5
Better upgrade for older BMW
Material Type: Plastic
Perfect fit
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Reviewed in the United States on March 20, 2026
A
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Amanda
Pawtucket, US
★★★★★ 5
Amazing
Material Type: Plastic
I purchased the Front Center Console Cup Holder as a replacement and it worked perfectly. The fit was very good and it matched the interior of the car nicely. It feels sturdy and holds cups securely without them moving around while driving. Installation was simple and took just a few minutes. It’s a great solution if your original cup holder is broken, worn out,
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Reviewed in the United States on March 7, 2026
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Cheto
Carnegie, US
★★★★★ 5
Works great
Material Type: Plastic
Good quality overall
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Reviewed in the United States on March 7, 2026

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