Hillman 3/8 in. Diameter x 3 in. Length Heat-Treated Steel Hex Head Cap Screw, Grade 8, 50-Pack
SKU: 45408115550

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

Sale price$46.79 Regular price$51.99
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 3 in. Length Heat-Treated Steel Hex Head Cap Screw, Grade 8, 50-PackHillman Grade 8 Hex Head Cap Screw 3 8 in. x 3 in. (50 Pack) Heavy duty hex head cap screws from Hillman deliver Grade 8 strength for demanding fastening applications. Made of heat treated steel with a protective yellow dichromate finish, these partially threaded bolts are ideal for use with a nut or tapped hole. Key Features: Grade 8 Strength: Heat treated steel provides high tensile performance for heavy duty assemblies Washer Face Head: Built in

Hillman Grade 8 Hex Head Cap Screw 3/8 in. x 3 in. (50-Pack)

Heavy-duty hex head cap screws from Hillman deliver Grade 8 strength for demanding fastening applications. Made of heat-treated steel with a protective yellow dichromate finish, these partially threaded bolts are ideal for use with a nut or tapped hole.


Key Features:

  • Grade 8 Strength: Heat-treated steel provides high tensile performance for heavy-duty assemblies
  • Washer Face Head: Built-in washer face under the hex head for improved load distribution and sealing
  • Partially Threaded Shank: Enhances shear strength and alignment in structural connections
  • Corrosion-Resistant Finish: Yellow dichromate coating adds wear and rust resistance
  • Bulk Pack Convenience: 50-pack for jobsite efficiency and consistent hardware matching

Specifications Table:

Specification Details
Brand Hillman
Diameter 3/8 inch
Length 3 inch
Material Steel
Grade Grade 8
Finish Heat-treated yellow dichromate
Thread Type Coarse (USS)
Head Type Hex head with washer face
Threading Partially threaded shank
Packaging Quantity 50 pack
Packaging Type Boxed
Use For use with a nut or tapped hole; tighten with wrench or drill

Frequently Asked Questions (FAQ):

Q: What size are these screws?
A: Each hex head cap screw is 3/8 inch diameter and 3 inches long.


Q: Are they fully threaded?
A: No. They are partially threaded along the shank for improved strength.


Q: What material and grade are they?
A: They are Grade 8 heat-treated steel for high strength applications.


Q: What thread type do they use?
A: Coarse thread (USS).


Q: How are they typically installed?
A: Tighten with a wrench or a drill driver into a nut or tapped hole.


Industrial Strength, Refined Utility

A bolt with presence—its burnished yellow dichromate sheen brings a subtle, utilitarian polish to exposed hardware moments. The crisp hex head and clean, partial thread feel engineered and intentional, perfect for cabinetry details or custom metalwork where hardware becomes part of the composition. Pair with matte black or oiled bronze elements to let the warm metallic tone sing. For projects that demand both beauty and brawn, this is a quiet essential.


Equip your project with Grade 8 confidence—add this 50-pack of Hillman hex head cap screws to your cart now.

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: 45408115550

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.3 ★★★★★
Based on 1371 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
R
Verified Purchase
reginald wilks
Charlottesville, US
★★★★★ 5
compact flosser
Color: Green
works well for me when traveling does not leak not expensive and compact
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
K
Verified Purchase
Kelly Warren
Port Orchard, US
★★★★★ 1
Will not charge after 1 month
Color: Pink
Liked this product, compact, good water pressure, easy to travel with, but I just tried to charge it for the 1st time after about a month of use and it will not register a charge. I've tried a bunch of different cables. It's just a hunk of useless plastic now and there's no way to contact the seller without leaving a review, which was not my preference.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 31, 2026
A
Verified Purchase
Amazon Customer
New York, US
★★★★★ 5
Very Strong Flosser! Works great!
Color: Green
Really strong flosser! There are multiple settings for flow type. You may want to reconsider if you have very sensitive gums. The irrigation is pretty strong. It does get all the stuff you thought you flossed away, out of your teeth, gums and mouth. Good battery, it lasts for weeks to maybe a month and a half with daily use, up to 3 months longer before recharge, if not using everyday. I've tested out both scenarios, while still using a regular string floss daily.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 10, 2026
L
Verified Purchase
Looking for solutions
Boise, US
★★★★★ 5
Totally Satisfied!
Color: Green
I love this, it works better than I expected. I needed a water flosser that was compact to travel with. This one works great! It is very powerful at its highest setting; however, you must work quickly, or you will need to refill the water reservoir before you're able to do your entire mouth. The pulsating setting gives the ability to move around each quadrant of your mouth a little slower. The soft setting works well for my grandson. It does a great job of getting rid of the food particles stuck between your teeth.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 5, 2025
A
Verified Purchase
Amazon Customer
Louisville, US
★★★★★ 5
Excellent
Format: Paperback
Perfect condition, perfect service
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2024

recommand products