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
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 9 - Jul 14

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 1812 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
B
Verified Purchase
Brianna B
Massapequa, US
★★★★★ 5
Soothing, refreshing, and effective for most uses
I found this sunscreen back when it was still reasonable priced ($10 for a bottle this size) and am now completely 100% addicted as the price continues to rise. Sigh. I don't use this anywhere but my face and neck. Putting this on my face makes me go "ahhhhh". I break out easily, burn easily, and haaaate the feeling of sunscreen. Previously, I used Neutrogena 45 or 55+ ultra-sheer dry touch, and I still use that sometimes when I expect more intense exposure, but the Coola cucumber just feels so much better. I don't actually know if I would burn in cases where I still use my other 45+ sunscreen since I haven't taken the chance. I use Coola for 30-45 minute pool sessions, and hikes between 30-90 minutes. I haven't trusted it for things like skiing, 3 hour hikes, or boating where you get intense sun and a lot of moisture exposure. Buy if you want a lightweight, refreshing face sunscreen for walks in the sun, lounging poolside, or mild-moderate hikes.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 10, 2020
D
Verified Purchase
Daniel
Massapequa, US
★★★★★ 4
Everyday sunblock
It’s an okay sunblock, light weight , and smells good . the only problem is that the expiration date is too soon that is 10/2021
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2021
L
Verified Purchase
Love-to-cook "J"
Waukegan, US
★★★★★ 5
Organic Sunscreen with an Air-Brushed Finish
I've been using the Coola Organic sunscreen on my face for about 5 years now. I love that it protects my skin without dangerous chemicals. The product has virtually no scent and has a pleasant creamy, but not greasy, texture. An additional perk is that it creates an instant "air-brushed" looking finish to my skin. Note: I have found that you have to shake the tube (especially when new) or else the product emerges a bit watery at first. I've always used the non-tinted formula so I can't comment on how the tinted formula works. Also, the "cooling" aspect of the product seems more of hype than reality. But, over all, this is an excellent sunscreen.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2021
M
Verified Purchase
Mallory m Zimmerman
Los Angeles, US
★★★★★ 5
Gentle but effective
Smooth feel, non skin irritating and my face looks great! Definitely working.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 22, 2025
B
Verified Purchase
B. Mulder
Waukegan, US
★★★★★ 5
Worked well near the equator
Style: SPF 50
I bought this product because I was going to be in the field for a month, outside, every day, all day, in Tanzania at high altitude. A severe sunburn would be hard to treat in the remote area we were in, but also I am very careful about protecting my skin from aging. I had to have mineral based sunscreen because as a whitewater kayaker I know it’s the only truly water resistant kind and it was going to be sweaty. And since I knew I was going to be putting it on every day, and we didn’t have running water in the field (bucket showers only) I didn’t want it to feel gross. (I really wanted to try the spray but I didn’t want to put anything pressurized in my luggage.) And I had already discovered the Coola face sunscreen (30spf version) which had impressed me with how silky smooth and not greasy it is. Now this IS greasier because it is a higher SPF. BUT I think this product is as good as you’re going to get with the protection you’re getting. Like I said, I’m a white water tiger, so I have used a LOT of mineral sunscreens. This was hands down the most comfortable one I’ve used. And it was effective. I didn’t burn once—only time I did burn was when I forgot to put it on one day toward the end of the trip, when we were out for just a couple hours—and I got the first 2nd degree burn I’ve ever had in my life. That was what this stuff had protected me from, all day every day, the entire trip. I did tan a little but I think that was mostly from the few times I was not covered during short bouts or it was cloudy. For my face I used the Coola 50spf face product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 7, 2022

recommand products