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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Myls Dubya Es
Chelsea, US
★★★★★ 4
Clean feel and gentle on teeth
Flavor Name: 1. Sensitive Mint, Size: 4 Ounce (Pack of 1)
I picked up this toothpaste because I wanted to try something a little different that focused on a more natural feel while still keeping my teeth clean, Between coffee daily meals and just normal wear I was looking for something that felt effective without being harsh, I wasnt sure how I would like a fluoride free option but it has been a nice change When it arrived the first thing I noticed was the clean simple packaging and the peppermint scent, The texture is smooth and spreads easily without being overly foamy, It has a mild mint flavor that feels fresh without being too strong or overpowering, My spouse tried it as well and said it felt less intense than typical toothpaste which was actually a positive After using it regularly my teeth felt clean and smooth without that overly stripped feeling some products leave behind, It has been gentle enough that I did not notice any sensitivity or irritation which is something I always pay attention to, The overall experience feels more balanced and not overly aggressive I also like that it does not have a long list of harsh ingredients and still manages to do the job, It fits easily into a daily routine and does not require any adjustments or special steps, The tube size is practical and easy to store For anyone looking for a toothpaste that feels gentle clean and a bit more natural this has been a good option, It keeps things simple while still providing a fresh feeling after brushing I currently highly recommend this product. However, should issues arise I will update my review accordingly.
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Reviewed in the United States on April 13, 2026
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Kendall Mceniry
Houston, US
★★★★★ 5
Only toothpaste in my household
Flavor Name: 1. Sensitive Mint, Size: 5.25 Ounce (Pack of 1)
Love this toothpaste, no fluoride, great taste, fresh breath. Great value for the price as the tube is quite large. Only downfall if that it doesn't foam well which you will find with any toothpaste not full of nasty chemicals. Only thing my family uses.
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Reviewed in the United States on May 11, 2026
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Amazon Customer
Houston, US
★★★★★ 5
Give it a few weeks! It works!
Flavor Name: 1. Sensitive Mint, Size: 4 Ounce (Pack of 1)
I've been brushing with this toothpaste twice a day for about 3 weeks. I can see an improved whitening. My hairdresser, new one I hadn't met before, told me I have perfect teeth. Actually they're not that straight but the color of my teeth makes up for the misalignment of some of them. Flavor of toothpaste is good. Didn't cause any sensitivity for me.
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Reviewed in the United States on May 8, 2026
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Amanda Hammond
Bozeman, US
★★★★★ 5
Love this!
Flavor Name: 1. Sensitive Mint, Size: 4 Ounce (Pack of 1)
This toothpaste does not foam but my mouth has never felt cleaner or fresher! The taste is minty fresh and I have noticed a difference in the whiteness of my teeth since I started using it! Very effective and I highly recommend!
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Reviewed in the United States on May 9, 2026
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TeeB
Whiting, US
★★★★★ 4
Baking soda never works out well
Flavor Name: 1. Sensitive Mint, Size: 4 Ounce (Pack of 1)
I don't know why I decided to chance it but it didn't take long for my teeth to start aching. I realized baking soda might be the cause of my toothache issues when I switched between a few and realized the baking soda ones were accompanied by aching. I think I went with this because it claims to be for sensitivity and I thought the nhap would help whatever the baking soda affected but not the case. If you have tooth ache, consider it might actually be the toothpaste and don't just go looking for "sensitive" labels. This might work in combination with other toothpaste. I.e. not multiple times a day but once a day and a different one for other brushing. I've noticed not being as able to tell when it's been a while since I brushed. This was the main change so it might be effective at cleaning. The tube is metal and hard to press but the paste consistency is less firm than others so it works out. It didn't take much to get the paste out. It gives a light foam. The taste is not sweet. It's tolerable but borders on bad.
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Reviewed in the United States on May 16, 2026

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