SKU: 48154912168

Hillman 5/16 in. Dia x 1 in. Length Heat-Treated Steel Hex Head Cap Screw, 100-Pack

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Description

Hillman 5/16 in. Dia x 1 in. Length Heat-Treated Steel Hex Head Cap Screw, 100-PackHillman 5 16 in. x 1 in. Grade 8 Hex Head Cap Screws (100 Pack) Durable, heat treated steel hex head cap screws for heavy duty fastening. At 5 16 in. diameter by 1 in. length, these Grade 8 fasteners feature a zinc dichromate finish for added corrosion resistanceideal for automotive, machinery, and structural applications. Key Features: Heavy Duty Strength: Grade 8, heat treated steel for high tensile performance Corrosion Resistant: Zinc dichromate

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

Durable, heat-treated steel hex head cap screws for heavy-duty fastening. At 5/16 in. diameter by 1 in. length, these Grade 8 fasteners feature a zinc dichromate finish for added corrosion resistance—ideal for automotive, machinery, and structural applications.


Key Features:

  • Heavy-Duty Strength: Grade 8, heat-treated steel for high tensile performance
  • Corrosion Resistant: Zinc dichromate finish helps protect in harsh environments
  • Precise Fit: 5/16 in.-18 thread x 1 in. length for common assemblies
  • Reliable Drive: Hex head design enables high torque tightening with standard wrenches
  • Bulk Value: Convenient 100-pack for shop or jobsite stock

Specifications Table:

Specification Details
Diameter 5/16 in.
Length 1 in.
Thread 5/16-18 (coarse)
Head Type Hex head
Material Heat-treated steel
Grade Grade 8
Finish/Coating Zinc dichromate
Package Quantity 100 pieces
Manufacturer/Brand Hillman
Manufacturer Part Number 220069
SKU 54401
Country of Origin Taiwan
Product Dimensions (package) 7 x 4.5 x 2 in.
Package Weight 6 lb

Frequently Asked Questions (FAQ):

Q: Are these fully threaded?
A: Yes, this 5/16 in.-18 x 1 in. cap screw is fully threaded as shown.


Q: What tools are needed for installation?
A: Use a standard hex socket or wrench sized for a 5/16 in.-18 hex head cap screw.


Q: What grade are these bolts?
A: They are Grade 8 heat-treated steel for high strength applications.


Q: What is the finish?
A: Zinc dichromate coating for enhanced corrosion resistance.


Q: Is this a coarse or fine thread?
A: Coarse thread (5/16 in.-18).


Industrial Poise with Purpose

These hex head cap screws bring a precise, engineered rhythm to any space—sleek, golden-toned zinc that catches the light with quiet confidence. I love the crisp geometry of the hex head; it feels both refined and unapologetically utilitarian. Style them in view on open shelving or exposed hardware moments to celebrate the mechanics of design. Consider these your understated jewels—small, strong, and essential to luxe, lasting craftsmanship.


Upgrade your hardware kit with these Grade 8 Hillman cap screws for reliable, high-strength fastening on every project.

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: 48154912168

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4.4 ★★★★★
Based on 11 reviews
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B
Verified Purchase
Brenda W
Omaha, US
★★★★★ 3
Great idea but didn't hold up!
Size: Large
My dog and I really enjoyed this as a tug toy to use where it kept my hands away from accidental nips. When we initially got it we let her play solo with it after our tug session and I noticed that she left little teeth puncture holes so we packed it away for awhile and exclusively used the other new toy we bought for her. After a few weeks we took this back out and, again, we loved it and this time I allowed her to play with it longer and although it was showing a lot of the little tooth marks it seemed to be holding up so I left it out with her. None seemed deep, just seemed like impressions from her teeth. We continued to enjoy it for about a week where she'd carry it over to us for tug sessions, loop it on our feet when we were sitting watching tv and chewing on it a bit. I'd look at it when we'd tug and, like I said above, it seemed to be holding up. After one session of tug when she took it off to chew on and I was watching some tv I checked on her after awhile and she had bitten through the black side and had chewed up into small pieces about a two inch section of it. Small, little hard bits were in a pile on the floor. She didn't just bite through, it had broken into small, little pieces and hopefully I was able to get all of them and she didn't swallow any! So if you want to get this exclusively as just a tug toy and not something for your dog to chew on and plan on putting it away after I think it will be okay for that and should last but if your dog is a serious chewer like ours is you may not want them to be allowed to chew on this. Seemed like it was going to last and then suddenly I was throwing away half of it and hoping she didn't eat any of the black bits. We still have the yellow side and will take that out for some tugging but no longer for her to play with freely!! She did tremendously love running around with this thing and would flip up the loose end and hook it on her face or our feet and was so cute to watch her!! Wish it had lasted!!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2013
S
Verified Purchase
Sean
Carnegie, US
★★★★★ 5
Name holds true.
Size: Large Triple
Just bought my second set of these.. first set lasted my healer almost 4 years and are still together but starting to split at the smaller seams so you can’t play as aggressive as my dog would like. We bought the second set and now she has her second wind! She loves tugging and I love knowing this toy will last a good while especially with an active dog!
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Reviewed in the United States on January 4, 2025
C
Verified Purchase
Customer Holly
Lexington, US
★★★★★ 5
My Aussie loves this bone!
This wishbone is so durable! My Australian shepherd is a big cheese and this is her go-to chew toy. It's a fave! She has spent HOURS chewing on this bone and it has held up super well. It has no smell but understand she can taste the flavor of it. I love having something she can chew on that is safe for her that she enjoys. Great value.
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Reviewed in the United States on May 10, 2026
M
Verified Purchase
Mindi P
Lexington, US
★★★★★ 5
Durable, Great Value Dog Bone!
We’ve ordered several of these that have lasted for months, and my dogs are still working on them. Months. That alone feels like a small miracle. Normally, chews last about 10 minutes. Not this one. This thing is built like it trained for battle. It keeps them busy, satisfied, and focused on something that is actually meant to be chewed. And the best part? It’s way more affordable in the long run. Instead of constantly buying new toys, chews, or replacing destroyed shoes, this one just keeps going. Definitely worth every penny and then some. If you have determined chewers, this is the chew/bone you’ve been looking for.
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Reviewed in the United States on February 18, 2026
J
Verified Purchase
J.M.
Louisville, US
★★★★★ 5
Dog loves this
My dog absolutely loves the shape of these and will play with it for hours. The material is pretty durable too, though he is a big lab so over time chewed away the top nubs. Eventually tossed it at that point, but got great use out of it before. No bad smell and my pet really enjoys playing with it. It’s not too big either and is really easy to take with you on trips, etc. have bought multiple!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026

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