Hillman 3/8 in. Diameter x 1 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screw, 100-Pack
SKU: 83303479083

Hillman 3/8 in. Diameter x 1 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screw, 100-Pack

Sale price$31.38 Regular price$34.87
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Description

Hillman 3/8 in. Diameter x 1 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screw, 100-PackHillman Grade 8 Hex Head Cap Screws, 3 8" x 1", 100 Pack Heavy duty Grade 8 hex head cap screws engineered from heat treated steel for high strength fastening. Coarse thread, partially threaded design with washer face under the head delivers secure clamping in machinery, automotive, and structural applications. Key Features: Grade 8 Strength: Heat treated steel provides high tensile strength for demanding loads Coarse Thread: Reliable bite and faster

Hillman Grade 8 Hex Head Cap Screws, 3/8" x 1", 100-Pack

Heavy-duty Grade 8 hex head cap screws engineered from heat-treated steel for high-strength fastening. Coarse-thread, partially threaded design with washer face under the head delivers secure clamping in machinery, automotive, and structural applications.


Key Features:

  • Grade 8 Strength: Heat-treated steel provides high tensile strength for demanding loads
  • Coarse Thread: Reliable bite and faster assembly in general-purpose applications
  • Partially Threaded Shank: Improves shear strength and alignment like a hex bolt
  • Washer Face Head: Smooth bearing surface enhances seal and distributes load
  • Bulk Pack Value: 100 boxed screws, 3/8 in. diameter x 1 in. length

Specifications Table:

Specification Details
Brand Hillman
Product Type Hex Head Cap Screw
Diameter 3/8 inch
Length 1 inch
Material Steel
Grade Grade 8
Finish Yellow dichromate; heat-treated
Thread Type Coarse
Threading Partially threaded along shank
Head Style Hex head with washer face
Units per Pack 100 (boxed)
Model Number 220121
UPC (alt) 008236081695
Weight 4.4 lb

Frequently Asked Questions (FAQ):

Q: What size are these screws?
A: Each screw is 3/8 inch diameter by 1 inch length.


Q: What material and grade are they?
A: They are heat-treated steel, Grade 8.


Q: Are the threads coarse or fine?
A: Coarse thread.


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


Q: What finish do they have?
A: Yellow dichromate heat-treated finish for added wear resistance.


Industrial Strength with a Golden Sheen

These Grade 8 cap screws bring a refined, utilitarian beauty to any workshop or garage—sleek geometry crowned with a subtle yellow dichromate glow. I love the confident hex head and washer face; it feels precise, intentional, architectural. Decant them into a clear bin on open shelving beside oiled wood and matte black tools for a quietly luxe vignette. Functional and formidable, they’re the discreet heroes of a well-appointed space.


Equip your projects with Grade 8 strength—add this 100-pack of Hillman hex head 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: 83303479083

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Verified Purchase
enjoylife
Omaha, US
★★★★★ 5
Happy with these boots
Nice-looking and more comfortable than expected for a pointy toe—I’ve worn them a lot for events.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 16, 2026
D
Verified Purchase
DL
West Palm Beach, US
★★★★★ 5
Absolutely soft leather
Color: Coffee
I ordered the coffee color, absolutely love it.Super soft- I have ordered brands that cost 4xs as much & returned because of stiff leather. The zippers simply glide.I love all the different zipper pockets, I like having a place for everything, my phone fits perfectly in the back side zipper area. The front magnetic for my key fob.Zipper above to get out quick cash.I had a hard time deciding which color I wanted! It's roomy enough inside but not too big where Im going to carry things I dont need. It's nice having 2 straps to trade out- im starting with the guitar strap- like that it is adjustable straps & on swivel hooks.And you can really smell the genuine leather. For my preference I would have liked it to have been 2 to 3 inches shorter height wise as I was looking to replace a few bags I used when flying but this is perfect for an everyday crossbody.This bag looks very well made. Nothing fancy on the inside. Plan on searching for this brand in smaller size and some soft colors for spring & summer.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026
T
Verified Purchase
Tabatha
Belleville, US
★★★★★ 5
So incredibly happy with this purse! You will be so happy you bought this. Beautiful!
Color: Brown
Thrilled from the start! Real leather , the zipper hardware great quality. Love the guitar strap. Love all of the pockets. Great purse, great design! Real genuine leather!
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Reviewed in the United States on May 16, 2026
M
Verified Purchase
M. Gordon
Los Angeles, US
★★★★★ 5
Definitely would recommend
Color: Brown, Color: Brown
This bag had soft leather and looked just like the picture on the product page. There is the main compartment, two zippers and two slip pockets on the inside. I do like the bag, but I don’t usually like slip pockets because a lot of times when you’re just throwing things into the bag items might go into a slip pocket without you realizing it. I didn’t pay attention to this when I bought the bag, but I still really like it. On the back is a large compartment with a zipper. On the front is another large compartment with a zipper and a pocket with a magnetic snap. I bought the brownish color one and it’s really beautiful. I would definitely recommend it. It does come with two straps I am trying out the one they call Boho for now. It is very nice. The other one which I guess is leather also is much thinner.
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Reviewed in the United States on February 4, 2026
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Verified Purchase
Cab98
Alexandria, US
★★★★★ 5
STURDY, WELL MADE, AND ATTRACTIVE BUT..
Color: Coffee
The title say everything there is to say about this purse. I especially loved the two outside pockets that worked perfectly for my phone, keys etc. making them easily accessible. Unfortunately the inside zipped compartment that many find useful was the bane of my life.. I could not remember whether I had put something inside the zipped pocket or on either side - and if so on which side. Besides which all small things (lipstick, small pill case, etc) fell on their side and were very difficult to see and find in the black interior. I guess I am too used to a purse organizer (light colored) which has stiff pockets in which everything stands up vertically. All it takes is a glance to locate what you need.. I had to, almost regretfully, return this purse but lesson learned - only buy a purse minus middle pocket which leaves no room for an organizer.
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Reviewed in the United States on April 3, 2026

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