SKU: 35569724716

Hillman 5/16 in. Diameter x 3 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, Coarse Thread, 100-Pack

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Description

Hillman 5/16 in. Diameter x 3 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, Coarse Thread, 100-PackHillman Grade 8 Hex Cap Screws, 5 16" x 3", 100 Pack Heavy duty Grade 8 hex head cap screws built from heat treated steel for demanding fastening applications. Coarse threaded with a washer face for secure seating and long lasting performance. Ideal for machinery, automotive, and construction projects. Key Features: Heavy Duty Grade 8: Engineered for high strength applications and superior load bearing performance Heat Treated Steel: Enhanced

Hillman Grade 8 Hex Cap Screws, 5/16" x 3", 100-Pack

Heavy-duty Grade 8 hex head cap screws built from heat-treated steel for demanding fastening applications. Coarse-threaded with a washer face for secure seating and long-lasting performance. Ideal for machinery, automotive, and construction projects.


Key Features:

  • Heavy-Duty Grade 8: Engineered for high-strength applications and superior load-bearing performance
  • Heat-Treated Steel: Enhanced durability and wear resistance for long service life
  • Coarse Thread: Reliable grip and faster assembly in tapped holes or with nuts
  • Washer Face Under Head: Better seal and seating against surfaces to reduce loosening
  • Bulk Value Pack: 100 screws sized 5/16 in. diameter x 3 in. length

Specifications Table:

Specification Details
Brand Hillman
Product Type Hex Head Cap Screws
Diameter 5/16 inch
Length 3 inch
Material Steel
Finish Heat Treated (yellow dichromate referenced)
Grade 8
Thread Type Coarse
Threading Partially threaded along shank
Head Style Hex head with washer face under head
Number in Package 100 pack
Packaging Type Boxed
Tightening Method Wrench or drill
Package Height 3.2 in
Package Width 4.3 in
Package Length 5.3 in
Package Weight 7.6 lbs

Frequently Asked Questions (FAQ):

Q: Are these fully or partially threaded?
A: They are partially threaded along the shank.


Q: What tools are recommended for installation?
A: Tighten with a wrench or a drill fitted with the appropriate hex socket.


Q: What is the thread type?
A: Coarse thread.


Q: What material and finish do they have?
A: Made of heat-treated steel; yellow dichromate style finish referenced for strength and wear resistance.


Q: Can these be used in automotive or machinery applications?
A: Yes, as Grade 8 heat-treated steel hex cap screws, they are suitable for high-stress applications in automotive and machinery.


Industrial Strength with Clean, Purposeful Lines

These hex cap screws bring a refined, utilitarian elegance to any build—sleek heads and crisp geometry that read as confident and modern. The heat-treated Grade 8 steel delivers a commanding presence and resilience. Style them with blackened hardware and raw oak shelving to underscore a crafted, industrial vibe. Essential, functional, and impeccably strong—this is hardware that elevates the everyday.


Secure your projects with trusted Grade 8 strength—add this Hillman 100-pack to your toolkit 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: 35569724716

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4.8 ★★★★★
Based on 29 reviews
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Product Reviews
K
Verified Purchase
Kellie
Lake Worth, US
★★★★★ 4
Good manners book
Format: Paperback
Good anecdotes and lessons in this book. I wanted to get a book to read to my 4 year old. This book keeps her attention and she likes it. This book talks about many subjects: Proper etiquette for please, thank you, your welcome, being a good guest, helping out with parents, friends, teachers and neighbors, etc. It feels a little long and a lot foing on with each page, but overall a good quality book. Would buy again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 29, 2015
T
Verified Purchase
teacher
Fort Morgan, US
★★★★★ 5
Fun Lessons
Format: Paperback
You can never go wrong with reading a Richard Scarry book. This book teaches manners to young children very well. My young granddaughter has started speaking in complete sentences, and she is using please and thank you. This book is a good introduction for using these words.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 13, 2024
D
Verified Purchase
D's mom
Boise, US
★★★★★ 5
Fun way to learn good behavior!
Format: Paperback
Good value for the price, you get 7 short stories with this book & the illustrations are very well done. If your child's attention span can't handle the entire book you can still manage a few. Lots of funny action pictures to hold their interest, my 4 1/2 yr old son flips through the book on his own just to look at the pictures and they are descriptive enough to follow the story without reading the words. It's a favorite book to listen to because he is of age to get in trouble and to be held accountable, so he likes to see that he is not the only one. His favorite story is Pig Will and Pig Won't. Hint: Say "I won't" with an angry piggy snort! This cracks kids up, they will anticipate the words and snort along with you "I won't"! Sometimes works to change a defiant or lazy mood when I ask him to do something, I will ask "is my D. a pig will or pig won't today?".. helps to snort a little! Can't overuse it though..
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2014
S
Verified Purchase
September
Dallas, US
★★★★★ 5
too advanced for 18month old, but great book!
Format: Paperback
I love Richard Scarry! I bought this book for my 18 month old, who we are trying to teach to say please and thank you. Unfortunately this book is just way too advanced for her. It's full on stories rather than short pieces. I know, the suggested age was older but that is true for a lot of books that really can be enjoyed by younger tots. This one will be put away for at least another 6 months, and then kept on the shelf of "appropriate" but not in her board book box. However, I really like that she can now say "Lowly" :) Richard Scarry is one of my favorite authors/illustrators from childhood and I'm glad to have this book. It just is beyond the reach of my LO at this age.
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Reviewed in the United States on September 8, 2015
N
Verified Purchase
Nancy Hicks
Cuba, US
★★★★★ 5
Baby loves this book
Format: Board book
Lots of pictures for a 17 month old to talk about and point to
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 12, 2025

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