SKU: 91662774283

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

Sale price$54.89 Regular price$60.99
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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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Verified Purchase
Debra
Birmingham, US
★★★★★ 5
Great
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
Great lube for the boat
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
J
Verified Purchase
Joshua Murray
Lowell, US
★★★★★ 5
recommend
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
great price
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Reviewed in the United States on May 22, 2026
C
Verified Purchase
Christopher C.
Draper, US
★★★★★ 4
Does not come with a pump.
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
The Good: Changing the fluid in the lower unit is a very easy DIY job. This can save you hundreds of dollars each year by doing it yourself. The Bad: You need a special pump to change the oil, and sometimes it comes with the gear lube. Unfortunately this product did not come with it. Luckily my neighbor had an extra one from changing the lube a different boat laying around and was able to use that. The Ugly: If you have to go get the pump, that could cost a few extra dollar but is just an extra nuisance. The pumps are interchangable but you just need to clean it between uses (DON'T MIX DIFFERENT OIL BRANDS)
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Reviewed in the United States on October 28, 2025
J
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Joe H.
Lake Worth, US
★★★★★ 5
Works fine in outdrive
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
Good gear oil. Purple dye for leak detection
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Reviewed in the United States on April 2, 2026
L
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luv2safari
Lake Worth, US
★★★★★ 5
Good Quality
Size: 32 oz, Style: 32 Fl Oz, Pattern Name: Lube
Always the best quality.
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Reviewed in the United States on March 25, 2026

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