SKU: 91662774283

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

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Ships within 48 hours · Estimated delivery Sep 17 - Sep 22

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Description

Hillman 3/8 in. Diameter x 3-1/2 in. Length Heat-Treated Steel Hex Head Cap Screw, Grade 8, 50-PackHillman Grade 8 Hex Head Cap Screws, 3 8" x 3 1 2", 50 Pack Heavy duty Grade 8 hex head cap screws engineered from heat treated steel for maximum strength and wear resistance. Partially threaded with a washer face under the head for a secure seal, ideal for demanding fastening applications. Key Features: Grade 8 Strength: Heat treated steel delivers high tensile performance for heavy duty projects Washer Face Design: Built in bearing surface under the

Hillman Grade 8 Hex Head Cap Screws, 3/8" x 3-1/2", 50-Pack

Heavy-duty Grade 8 hex head cap screws engineered from heat-treated steel for maximum strength and wear resistance. Partially threaded with a washer face under the head for a secure seal, ideal for demanding fastening applications.


Key Features:

  • Grade 8 Strength: Heat-treated steel delivers high tensile performance for heavy-duty projects
  • Washer Face Design: Built-in bearing surface under the head improves sealing and load distribution
  • Partial Threading: Smooth shank section enhances shear strength and alignment
  • Corrosion-Resistant Finish: Yellow dichromate coating for added durability
  • Bulk Value: Convenient 50-pack for shop and jobsite readiness

Specifications Table:

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

Frequently Asked Questions (FAQ):

Q: Are these bolts fully threaded?
A: No. They are partially threaded along the shank for added shear strength.


Q: What tools should I use to install them?
A: Tighten with a wrench or a drill/driver fitted with the correct hex socket.


Q: Do they include nuts or washers?
A: No. This pack includes only the hex head cap screws; purchase compatible nuts and washers separately.


Q: What thread type do they use?
A: Coarse thread suitable for standard hex bolt applications.


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


Industrial Precision with a Golden Sheen

These Grade 8 hex cap screws bring a refined industrial presence to any build, their yellow dichromate finish lending a subtle, luxe glow. The clean, partially threaded shank and crisp hex head feel tailored and purposeful. Use them to elevate exposed hardware moments on custom shelving or workshop furniture where performance meets style. They’re the quiet heroes of polished, high-performance spaces.


Choose Hillman Grade 8 hex cap screws for reliable, high-strength fastening—stock up with this 50-pack 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: 91662774283

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Jh
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★★★★★ 5
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Great for aggressive chewers . hold up well
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
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Sarah Hood
Lowell, US
★★★★★ 5
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Size: Large, Color: Bundle
Nothing beats Nylabone!!! Our lab has destroyed everything else… even the extra durable black kongs. Finally a chew toy that is super durable and great size.
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Reviewed in the United States on June 12, 2026
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Kathryn
Los Angeles, US
★★★★★ 5
Best chew toy ever!
Size: Small, Color: Textured Ring, Size: Small, Color: Textured Ring
This bone is indestructible. Finally a toy that doesn't get chewed up to pieces.
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Reviewed in the United States on May 5, 2026
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Laurel
Belleville, US
★★★★★ 5
Heavy duty, excellent quality
Size: Small, Color: Textured Ring, Size: Small, Color: Textured Ring
I trust the Nylabone brand and would not buy a cheap substitute to save a few bucks. This ring is heavy duty. I got it for our 9-week-old puppy and it keeps her interested and entertained with all the little nubs. She uses it more as a toy than something to chew on, tossing it around and mouthing it. It's very hard so I'm not worried about her being able to chew off any little pieces at this point. This satisfies her for now and helps to keep her busy and reigns in some of her puppy energy. Recommend!
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Reviewed in the United States on March 9, 2026
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Nunya B
West Palm Beach, US
★★★★★ 5
Strong
Size: Small, Color: Textured Ring
My French Bulldogs have really strong jaws and are aggressive chewers. These really are sturdy and last a good amount of time. I replace every couple of months and they are one of my dogs favorites and easy for them to hold onto.
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Reviewed in the United States on April 25, 2026

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