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
Save 10%

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 10 - Jul 15

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

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

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.6 ★★★★★
Based on 862 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
C
Verified Purchase
creativecow
Draper, US
★★★★★ 5
Game-Changer for My Space!
Color: White, Size: 4 Panel Basic
I recently purchased the Kecreque 4-Panel Room Divider, and it has completely transformed my living area. At 88" wide, it provides ample coverage, creating a private nook in my open-concept home. The white polyester fabric is not only sleek and modern but also wrinkle-resistant and easy to clean—just a quick wipe with a damp cloth, and it looks brand new. Assembly was a breeze; I had it set up in about 20 minutes. The metal frame feels sturdy and durable, and the three extra-wide metal feet offer excellent stability, ensuring it doesn't tip over easily. I love how the panels are connected with flexible buckles, allowing me to adjust the configuration to suit my needs—be it a straight line or an angled setup. This divider has been perfect for creating a dressing area in my bedroom, and I've also used it to section off a workspace in my living room. Its versatility is unmatched, and it folds down compactly when not in use, making storage hassle-free. If you're looking for a stylish, functional, and easy-to-use room divider, I highly recommend this one. It's been a fantastic addition to my home!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2025
M
Verified Purchase
Megan
Draper, US
★★★★★ 5
Sturdy and Functional
Color: White, Size: 4 Panel Basic
I got this to replace a poor quality divider that I tried first, and this thing is the best! It is easily folded, stands sturdily, easy to assemble, and the fabric looks great. Very very happy with the quality for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
L
Verified Purchase
L. E. Morales
Bozeman, US
★★★★★ 1
Arrived damaged
Color: Black, Size: 4 Panel Basic
Unfortunately, very cheaply made. It arrived with one of the connecting tubes cracked horizontally. Possibly due to bad welding. It is quite a headache to assemble. It was delivered on time but returned for a refund.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 8, 2026
E
Verified Purchase
Elisabeth Baird Bennett
Lake Worth, US
★★★★★ 3
Not a great experience but a fine product
Color: Black, Size: 4 Panel Basic
not enough screws were included to make the wall. I was able to locate more screws to finish building-so I didn’t have to return the product- but it was a pain and I got lucky finding the pieces I needed but it could’ve been a fail and a returned product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
A
Verified Purchase
April Lehman
New York, US
★★★★★ 5
Useful, simple room divider
Color: White, Size: 4 Panel Basic
All the pieces were accounted for, and some even had extra pieces, maybe just in case they need changing. It was a bit like putting together a piece of IKEA furniture, though I went slower than usual so as not to make any mistakes. It wasn’t too hard to put together myself, and helps give my studio apt a feeling of space and privacy for my bed. I only wish it had a lovely Japanese design on it, but it does amazingly seem to match the wall color.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 3, 2026

recommand products