SKU: 77911868747

Hillman 3/8 in. Diameter x 2-1/2 in. Length Heat-Treated Steel Hex Head Cap Screw, Grade 8, 50-Pack

Sale price$43.19 Regular price$47.99
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Description

Hillman 3/8 in. Diameter x 2-1/2 in. Length Heat-Treated Steel Hex Head Cap Screw, Grade 8, 50-PackHillman Grade 8 Hex Head Cap Screw, 3 8 in. x 2 1 2 in., 50 Pack Heavy duty Hillman hex head cap screws deliver Grade 8 strength for high stress assemblies. Made from heat treated steel with a yellow dichromate finish, these partially threaded bolts provide secure clamping with a washer face under the head for improved seating. Key Features: Grade 8 Strength: Heat treated steel for high tensile performance in demanding applications Washer Face Head:

Hillman Grade 8 Hex Head Cap Screw, 3/8 in. x 2-1/2 in., 50-Pack

Heavy-duty Hillman hex head cap screws deliver Grade 8 strength for high-stress assemblies. Made from heat-treated steel with a yellow dichromate finish, these partially threaded bolts provide secure clamping with a washer face under the head for improved seating.


Key Features:

  • Grade 8 Strength: Heat-treated steel for high tensile performance in demanding applications
  • Washer Face Head: Enhanced seating and seal under the hex head for reliable clamping
  • Partial Thread Design: Stronger shank for shear resistance; ideal where a hex bolt is specified
  • Corrosion-Resistant Finish: Yellow dichromate coating adds wear and rust resistance
  • Bulk Pack Convenience: 50-pack for jobsites, maintenance shops, and inventory stock

Specifications Table:

Specification Details
Brand Hillman
Diameter 3/8 inch
Length 2-1/2 inch
Material Steel
Finish Heat-treated yellow dichromate
Grade Grade 8
Thread Type Coarse
Head Type Hex head with washer face
Threading Partially threaded shank
Number in Package 50 pack
Packaging Type Boxed

Frequently Asked Questions (FAQ):

Q: What size are these bolts?
A: Each bolt is 3/8 in. diameter by 2-1/2 in. length with coarse threads.


Q: Are these fully threaded?
A: No. They are Grade 8 bolts that are partially threaded along the shank.


Q: What tools are needed for installation?
A: Tighten with a wrench or a drill/driver and an appropriate hex socket.


Q: What is the finish?
A: Heat-treated steel with a yellow dichromate finish for added wear and corrosion resistance.


Q: How many bolts are included?
A: 50 bolts per box.


Industrial Strength, Streamlined Utility

There’s a quiet beauty in hardware that performs flawlessly—these Grade 8 hex cap screws bring crisp geometry and a subtle golden sheen to utilitarian details. The washer-faced head feels engineered and intentional, creating a tidy, confident connection. Use them to elevate exposed fasteners on workshop cabinetry or custom metalwork where strength meets style. Consider them the backbone of a refined, hardworking space—small pieces that make luxury feel effortless.


Equip your project with Grade 8 reliability—add this 50-pack to your cart and build with confidence.

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: 77911868747

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Russell Burns
Lowell, US
★★★★★ 5
Worked great for boat install
Size: 30ft, Style: 10 Gauge
Bought this to run some accessories on my boat. Worked great and well made. Flexible even with the coating. Made for easy work and should last. I wouldn’t hesitate to buy again if needed.
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Reviewed in the United States on January 19, 2026
I
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igomesf
Omaha, US
★★★★★ 5
High Quality Durable and Easy to Use
Size: 100ft, Style: 14 Gauge
This marine-grade wire is exactly what I needed for my boat's electrical setup The tinned copper construction ensures excellent conductivity and corrosion resistance making it perfect for marine automotive RV and solar applications The PVC insulation is thick and durable providing extra protection against moisture and wear The wire is flexible yet strong making it easy to route through tight spaces without breaking or kinking This product offers great value for money excellent functionality and is easy to use If you need reliable waterproof and corrosion-resistant wiring for your boat or RV this is a fantastic choice Highly recommend
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Reviewed in the United States on January 31, 2025
G
Verified Purchase
gnfo
Omaha, US
★★★★★ 5
Sturdy and works great
Size: 15ft, Style: 8 Gauge
Used this for an approximately 8' run in my electric UTV to power a 2500W inverter running off the 48V batteries so I could power AC tools out in the field. Very thick casing and nice and strong, but flexible enough to route around the frame of the UTV.
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Reviewed in the United States on December 17, 2025
A
Verified Purchase
Alex Farmer
Bozeman, US
★★★★★ 5
good quality
Size: 15ft, Style: 8 Gauge
good deal
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Reviewed in the United States on May 7, 2026
K
Verified Purchase
keith kremer
Birmingham, US
★★★★★ 4
Insulation and outside cover materials tough to cut and strip.
Size: 30ft, Style: 10 Gauge
Made in China. Wire works fine but the materials used for insulation and the outer cover are a pain to separate and strip for use. This isn’t like Ancor wire!
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Reviewed in the United States on October 8, 2025

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