Hillman 3/8 in. Diameter x 2-1/4 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screw, 50-Pack
SKU: 15850947782

Hillman 3/8 in. Diameter x 2-1/4 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screw, 50-Pack

Sale price$35.09 Regular price$38.99
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Description

Hillman 3/8 in. Diameter x 2-1/4 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screw, 50-PackHillman Grade 8 Hex Head Cap Screws, 3 8" x 2 1 4", 50 Pack Heavy duty Grade 8 hex head cap screws engineered from heat treated steel for maximum strength. Ideal for securing machinery and structural assemblies, these partially threaded bolts feature a washer face for a better seal and reliable clamping. Key Features: Grade 8 Strength: Heat treated steel delivers high tensile strength for demanding applications Washer Face Head: Built in bearing

Hillman Grade 8 Hex Head Cap Screws, 3/8" x 2-1/4", 50-Pack

Heavy-duty Grade 8 hex head cap screws engineered from heat-treated steel for maximum strength. Ideal for securing machinery and structural assemblies, these partially threaded bolts feature a washer face for a better seal and reliable clamping.


Key Features:

  • Grade 8 Strength: Heat-treated steel delivers high tensile strength for demanding applications
  • Washer Face Head: Built-in bearing surface improves sealing and load distribution
  • Partially Threaded Shank: Enhanced shear strength and alignment in bolted joints
  • Coarse Thread: Reliable engagement for faster installation with nuts or tapped holes
  • Multipack Convenience: 50 boxed screws for shop, jobsite, or maintenance stock

Specifications Table:

Specification Details
Diameter 3/8 inch
Length 2-1/4 inch
Material Steel
Finish Heat Treated
Grade Grade 8
Head Style Hex head with washer face
Thread Type Coarse
Threading Partially threaded along shank
Number in Package 50 pack
Packaging Type Boxed
Category Hex Bolts

Frequently Asked Questions (FAQ):

Q: Are these fully threaded?
A: No. They are partially threaded along the shank to improve shear strength.


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


Q: Do these have a special finish?
A: Yes. They are heat-treated and noted with a yellow dichromate-style finish in some listings for added wear resistance.


Q: What thread type do they use?
A: Coarse thread suitable for use with matching nuts or tapped holes.


Q: Can these be used in structural or machinery applications?
A: Yes. Grade 8 heat-treated steel is appropriate for high-load mechanical assemblies when sized and torqued correctly.


Industrial Poise with Performance Precision

These hex cap screws bring a crisp, engineered silhouette to hardware moments, marrying strength with sleek utility. The faceted head and washer face create a refined, intentional detail in exposed fastener applications. Style them with blackened steel brackets or natural oak for a chic contrast. Essential, enduring, and unapologetically functional—hardware that elevates the build.


Stock your project with Grade 8 reliability—add this 50-pack of Hillman hex cap screws 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: 15850947782

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Linus' Mama
New York, US
★★★★★ 5
Love it!
Color: Red Buffalo Plaid, Size: Full/Queen
Instantly became my favorite comforter for winter months. Colors are vibrant and beautiful; soft and warm; appears to be durable. I would get another of it came in others colors. Paired with the Amazon Basics red buffalo plaid sheet set. Matches my pajamas and my dogs’ bandannas perfectly!
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Reviewed in the United States on December 1, 2025
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LadyDeath/TxTunesLady
Draper, US
★★★★★ 5
Warm, cozy, soft, 💜 love
I don't leave reviews very often (yes that is cliche) I just don't have time. I have been debating for a few months one what I actually wanted to do with my bedroom. Spring is coming and the dark is getting to me and wanted to still get an elegant feel. I have some light baby blue around in my other comforter but I needed lighter brighter. I saw this and how SOFT is looked and I LOVE soft and cozy, who doesn't? I am so glad I took the chance. With that I also ordered the pillow....what I thought were pillows but didn't read very clearly they were just the covers so I ordered pillows then the picture I knew would still be elegant but be able to tie all the peices in and OFF the internet. Sometimes colors are not the same online as in person since monitors are always different shades of a color. Now on to this comforter. I didn't realize it came with the pillow covers. 💜 the set comes vacuum sealed but it is heavy when vacuumed. I undid the packaging a day later when I had time to wash. The cover flew out and I was perplexed, it's a pillow cover!!!! Awesome!!!! Ohhh there's 2, woohoo! Omg it's so soft. Oh I'm in heaven. Mmmmm hugging the pillow cover, I knew this was my kinda softness bed comforter. It is not LIGHT weight like say a throw blanket but it is light vs heavy bulky goose downs even though they say those are light. And when you wash it, its def not heavy if u spin the water out at super high setting on ur washer. I was able to carry it to the dryer fairly easy 20 ft away. This is by far the BEST comforter I bought in my life. I am a hoarder when it comes to comforters. Thinking if I'm ever homeless I'll have lots of somethings to keep me warm. For the price and the quality, (the batting inside doesn't shift when washing) this will be another purchase in the future in another color so I can start a soft collection. I usually give my comforters that I dont use ( the oldest but still perfect condition) to a friend or homeless. Great product!!!!
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Reviewed in the United States on February 6, 2020
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Luis
Alexandria, US
★★★★★ 5
Soft warmth for cold nights
Color: Charcoal, Size: King
This bedding set with faux mink fleece and sherpa backing is perfect for cold weather or low-heated rooms. It’s ultra-soft on both sides, and the down-alternative fill keeps warmth in without feeling heavy. The reversible design lets you switch up the look, and the stitching holds up well. Even after several washes, it keeps its texture and shape. No clumping or loss of loft. A practical choice for anyone who wants comfort, warmth, and simple style.
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Reviewed in the United States on October 14, 2025
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Laurie
Grantham, US
★★★★★ 5
Great bedding at a great price!
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I can’t believe how great this is for the price! Super soft, comfy and very warm. Perfect for wintertime. I don’t think I’d use it for other seasons…but it’s great right now.
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Reviewed in the United States on January 29, 2026
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Rose C
Louisville, US
★★★★★ 4
Warm, soft, cozy… not very fluffy though
Color: Tide Pool Blue, Size: Full/Queen
I LOVE this comforter!! The color is beautiful, it’s super soft, it’s nice and warm, and it has a nice weight to it. I will say it isn’t as fluffy as it seems in the pictures, there doesn’t seem to be any filling between the 2 layers, and if there is, it’s minimal. It’s more like the thickness of a similar double sided throw blanket. It also has the tendency to grab any small debris which clings to it, but this is to be expected with this type of fabric. I would not recommend this comforter for pet owners as it will definitely be covered in hair and whatever else your furbabies may track in! Despite the lack of fluffiness and it constantly holding on to any loose thread or other random debris, I am still very happy with my purchase. Very good comforter for the price and it looks beautiful on the bed!!
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Reviewed in the United States on October 11, 2024

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