Hillman 5/16 in. Diameter x 1-1/2 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, Coarse Thread (100-Pack)
SKU: 73263658880

Hillman 5/16 in. Diameter x 1-1/2 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, Coarse Thread (100-Pack)

Sale price$40.49 Regular price$44.99
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Description

Hillman 5/16 in. Diameter x 1-1/2 in. Length Grade 8 Heat-Treated Steel Hex Head Cap Screws, Coarse Thread (100-Pack)Hillman Grade 8 Hex Head Cap Screws 5 16 in. x 1 1 2 in. (100 Pack) These Hillman hex head cap screws are Grade 8, heat treated steel fasteners designed for high strength applications. The coarse thread bolts feature a washer face under the head for a better seal and are ideal for use with a nut or tapped hole. Key Features: High Strength Grade 8: Heat treated steel delivers superior tensile strength for demanding projects Coarse Thread Grip:

Hillman Grade 8 Hex Head Cap Screws 5/16 in. x 1-1/2 in. (100-Pack)

These Hillman hex head cap screws are Grade 8, heat-treated steel fasteners designed for high-strength applications. The coarse-thread bolts feature a washer face under the head for a better seal and are ideal for use with a nut or tapped hole.


Key Features:

  • High-Strength Grade 8: Heat-treated steel delivers superior tensile strength for demanding projects
  • Coarse Thread Grip: Partially threaded shank provides secure hold and easier starts
  • Washer Face Head: Built-in washer face under hex head promotes better seating and load distribution
  • Versatile Use: Suitable for fastening into tapped holes or with a nut; tighten with wrench or driver
  • Bulk Value Pack: 100 screws sized 5/16 in. diameter x 1-1/2 in. length

Specifications Table:

Specification Details
Brand Hillman
Diameter 5/16 inch
Length 1-1/2 inch
Material Steel
Grade Grade 8
Finish Heat-treated (yellow dichromate) finish
Thread Type Coarse
Threading Partially threaded along shank
Head Style Hex head with washer face
Quantity in Package 100 pack
Packaging Type Boxed
Tightening Method Use wrench or drill/driver
Category Hex Bolts
Package Dimensions (L x W x H) 4.3 in x 4.3 in x 3.5 in
Package Weight 4.1 lb

Frequently Asked Questions (FAQ):

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


Q: What grade are these bolts?
A: Grade 8, suitable for high-strength applications.


Q: What tools are needed for installation?
A: Tighten with a wrench or compatible driver on the hex head.


Q: Can these be used with nuts or in tapped holes?
A: Yes. They are designed for use with a nut or directly into a tapped hole.


Q: What is included in the package?
A: A boxed pack of 100 hex head cap screws sized 5/16 in. diameter by 1-1/2 in. length.


Industrial Strength, Clean Precision

There’s a quiet confidence in hardware that marries power with polish. These Grade 8 hex cap screws bring a crisp, engineered silhouette to any build, their washer-faced heads seating flush for a seamless finish. Use them to anchor exposed steel brackets or modern shelving where the details matter. Consider them the steadfast staples of a refined, hardworking space.


Secure your projects with Grade 8 confidence—add this 100-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: 73263658880

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Sarah W. Michels
Charlottesville, US
★★★★★ 5
Long lasting
Size: Medium
My dogs love these and they last pretty long. I take them away when they get very small so I think they’re pretty safe.
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Reviewed in the United States on May 27, 2026
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Corinne S
Fort Morgan, US
★★★★★ 3
Meant for bigger dogs than mine
Size: Small
I bought this for my 10 month old pup who’s a VERY aggressive chewer. I’m going to say this is made for a large, older (than mine) dog. She tried to chew a couple times but eventually just walked away from it when I offered it to her and she had only made a few scratches in it. If you have that bigger dog that’s an aggressive chewer, it would be a good value for your money and will keep the engagement high for a long time with its heavy duty quality.
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Reviewed in the United States on April 3, 2026
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DG
Natrona Heights, US
★★★★★ 5
Finally… a dog chew that doesn’t become a homemade prison shank
Size: Medium
My dog has a real talent: turning every “tough chew” into a sharp, weaponized shard that could star in an episode of Locked Up: Canine Edition. But THIS chew? Absolute game changer. For the first time ever, I can relax—no splinters, no pointy edges, no fear he’s secretly crafting a shiv under the couch. Just happy, safe chewing that actually lasts longer than five minutes. It’s durable, it’s safe, it keeps him busy, and I no longer feel like I’m living with a furry little inmate planning an escape. Highly recommend if your dog chews like he’s got nothing but time.
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Reviewed in the United States on January 29, 2026
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Axmceach
Omaha, US
★★★★★ 4
Would buy again
Size: Small
Would have given 5 stars, but my dog was able to chew this down pretty quickly, so not the most durable. I do like that this is made with better material than other dog chews, so I would buy again.
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Reviewed in the United States on February 12, 2026
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