SKU: 68757881577

Hillman 3/4 in. Diameter x 3-1/2 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, Coarse Thread, 20-Pack

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Description

Hillman 3/4 in. Diameter x 3-1/2 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, Coarse Thread, 20-PackHillman Grade 8 Hex Head Cap Screws, 3 4 in. x 3 1 2 in., 20 Pack Heavy duty Hillman hex head cap screws deliver Grade 8 strength for demanding assemblies. Made from heat treated steel with a washer face and coarse threads, theyre ideal for securing machinery, automotive, and structural components. Key Features: Grade 8 Strength: Heat treated steel provides superior tensile strength for high stress applications Coarse Thread: Ensures strong hold in

Hillman Grade 8 Hex Head Cap Screws, 3/4 in. x 3-1/2 in., 20-Pack

Heavy-duty Hillman hex head cap screws deliver Grade 8 strength for demanding assemblies. Made from heat-treated steel with a washer face and coarse threads, they’re ideal for securing machinery, automotive, and structural components.


Key Features:

  • Grade 8 Strength: Heat-treated steel provides superior tensile strength for high-stress applications
  • Coarse Thread: Ensures strong hold in tapped holes and with nuts; ideal for quick assembly
  • Washer Face Head: Built-in bearing surface under the hex head improves seating and load distribution
  • Partially Threaded Shank: Enhances shear strength where unthreaded grip is needed
  • Bulk Convenience: 20-pack boxed for shop and jobsite efficiency

Specifications Table:

Specification Details
Brand Hillman
Size 3/4 in. diameter x 3-1/2 in. length
Material Steel
Grade Grade 8
Finish Heat-treated yellow dichromate (heat treated)
Thread Type Coarse (USS)
Thread Coverage Partially threaded along shank
Head Type Hex head with washer face
Number in Package 20
Packaging Boxed
Category Hex Bolts / Hex Cap Screws
Package Dimensions (L x W x H) 6.8 in x 4.5 in x 3.3 in
Package Weight 10.9 lb

Frequently Asked Questions (FAQ):

Q: What size are these bolts?
A: Each bolt is 3/4 in. diameter by 3-1/2 in. length.


Q: What grade are they?
A: Grade 8 heat-treated steel for high strength.


Q: What thread type do they have?
A: Coarse thread (USS).


Q: Are they fully threaded?
A: No, they are partially threaded along the shank.


Q: How many come in a box?
A: 20 bolts per pack.


Industrial Strength, Polished Precision

There’s a quiet elegance in hardware that performs beautifully. These Grade 8 hex cap screws bring a muscular, architectural presence—clean hex geometry with a confident, coarse thread. Style them as exposed fasteners on reclaimed timbers or steel frames for a refined industrial moment. Consider them the jewelry of hardworking spaces—small details that make luxury feel effortless.


Secure your next project with Grade 8 confidence—add this 20-pack of Hillman hex cap screws to your cart now.

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: 68757881577

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4.5 ★★★★★
Based on 24 reviews
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Oscar suarez
Lake Worth, US
★★★★★ 5
Thank you
To mouch great … very nice
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026
P
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Pritesh Patel
Los Angeles, US
★★★★★ 3
Good product
Good product
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Reviewed in the United States on February 2, 2026
S
Verified Purchase
stanley h.
Grantham, US
★★★★★ 5
Nice Suit For The Price
This suit was a time-saver! My wife ordered a tux that wasn't going to make it for a formal occasion, so this was ordered and came within three days. It was a good thing she purchased 2, in case of sizing errors. The extra large pants worked, but sizing down to the large jacket & vest made the best combination/fit. We didn't go with the blue/black bow tie & flower it came with, but may for another event. However, being able to work interchangeably at a low price was rewarding!! Thought to add comments that the look of this suit is pleasing (though it's not the best thread). The workmanship gives it a 5 and even greater. The compliments were many. I do suggest using a good steam iron that will eliminate the wrinkles, without creating unwanted creases, while barely touching the suit; but, definitely follow the creases in the pants leg.
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Reviewed in the United States on March 20, 2025
P
Verified Purchase
Peggy Cole
Lowell, US
★★★★★ 5
Disappointed
Size: XX-Large, Color: Light Grey, Size: XX-Large, Color: Light Grey
Overview of the Purchase Experience I recently ordered a 3-piece suit for my significant other, who is quite tall at 6’8”. I was excited about this purchase, hoping it would be a stylish addition to his wardrobe. However, upon receiving the suit, I encountered several issues that I feel compelled to share. Color Discrepancy One of the most disappointing aspects of this order was the color inconsistency. The suit was supposed to be a cohesive set, but it arrived with two different colors. This mismatch not only detracted from the overall aesthetic but also made it difficult to wear as a complete outfit. When purchasing a suit, especially a three-piece one that includes trousers, a vest, and a jacket, one expects all pieces to match in color and style. Unfortunately, this was not the case here. Quality Concerns In addition to the color issues, I found the quality of the fabric and construction to be subpar. The material felt cheap and did not have the durability or elegance one would expect from a suit. The stitching appeared uneven in places, and there were loose threads that raised concerns about its longevity. A well-made suit should exude quality and craftsmanship; however, this product fell short on both counts. Fit Issues Related to Height Given my significant other’s height (6’8”), finding suits that fit well can be challenging. While I cannot recall his exact weight at this moment, it’s important to note that tall individuals often require tailored fits or specific sizing options that accommodate their stature. Unfortunately, even if the colors had matched and the quality had been better, I doubt this suit would have fit him properly without additional alterations. Conclusion Overall, my experience with this 3-piece suit has been disappointing due to color discrepancies and poor quality construction. For anyone considering purchasing this item for someone tall or for themselves, I would recommend looking elsewhere unless you are prepared for potential issues with fit and appearance. Peggy Cole FabFashiion not approved
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Reviewed in the United States on September 24, 2024
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Verified Purchase
Jennifer Lee
Whiting, US
★★★★★ 5
Excellent Affordable Suit for Special Occasions
Size: Large, Color: Black, Size: Large, Color: Black
Bought this for prom and was very happy with how it looked. The jacket is a nice medium weight and looked great on. We ordered a large, which was slightly big, but after having the suit tailored it fit perfectly. My son received many compliments and looked amazing.
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Reviewed in the United States on May 16, 2026

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