SKU: 69585900087

Hillman 5/16-18 x 4 in. Stainless Steel Hex Head Cap Screws (25-Pack)

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Ships within 48 hours · Estimated delivery Aug 30 - Sep 4

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Description

Hillman 5/16-18 x 4 in. Stainless Steel Hex Head Cap Screws (25-Pack)Stainless Steel 5 16 18 x 4 in. Hex Head Cap Screws, 25 Pack Durable 18 8 stainless steel hex head cap screws designed for high torque fastening in corrosive environments. Partially threaded with a washer face under the head for a better seal, ideal for use with nuts or tapped holes. Key Features: Corrosion Resistant 18 8 Stainless: Withstands moisture and outdoor exposure for long lasting hold. High Torque Hex Head: Machine threads and hex cap design

Stainless Steel 5/16-18 x 4 in. Hex Head Cap Screws, 25-Pack

Durable 18-8 stainless steel hex head cap screws designed for high-torque fastening in corrosive environments. Partially threaded with a washer face under the head for a better seal, ideal for use with nuts or tapped holes.


Key Features:

  • Corrosion Resistant 18-8 Stainless: Withstands moisture and outdoor exposure for long-lasting hold.
  • High-Torque Hex Head: Machine threads and hex cap design accept wrench or driver for strong tightening.
  • Washer Face Under Head: Helps create a better seal and distributes load evenly.
  • USS Partially Threaded Shank: Added shear strength where it matters, threads where you need grip.
  • Value Pack: 25 screws per boxed pack for project efficiency.

Specifications Table:

Specification Details
Brand Hillman
Type Hex head cap screw
Diameter-Thread 5/16-18
Length 4 in
Material 18-8 Stainless Steel
Finish Stainless Steel
Thread Type Coarse
Shank USS partially threaded
Head Style Hex cap with washer face under head
Pieces per Pack 25
Packaging Type Boxed
Installation Use with wrench or driver; with nut or tapped hole
Unit of Measurement (from source) Listed as Metric on source page; dimensions provided in inches

Frequently Asked Questions (FAQ):

Q: Are these fully threaded?
A: No. They are USS partially threaded with machine threads near the tip.


Q: What thread size and pitch are these screws?
A: 5/16-18 coarse thread.


Q: What is the overall length?
A: 4 inches from under the head to the tip.


Q: Can these be used outdoors or in marine environments?
A: Yes, the 18-8 stainless steel offers enhanced corrosion resistance suitable for outdoor use; for harsh marine/salt exposure, confirm specific grade requirements.


Q: How are they installed?
A: Use a wrench or a driver on the hex head; pair with a matching 5/16-18 nut or install into a tapped 5/16-18 hole.


Sleek Utility with Enduring Stainless Presence

There’s a quiet elegance in hardware that performs flawlessly and looks crisp doing it. The clean hex head and slender, partially threaded shank bring an industrial polish that complements exposed joinery and modern cabinetry. Style it with matte-black brackets or blonde woods to let the stainless glint punctuate the composition. It’s a small detail that delivers a luxurious, intentional finish.


Upgrade your build with corrosion-resistant stainless strength—add this 25-pack 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: 69585900087

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4.2 ★★★★★
Based on 13 reviews
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zee
Alexandria, US
★★★★★ 5
Great toys for aggressive chewers
Size: Medium/Large, Color: Turkey Day Drumstick - Large
These are great toys they last a while they are destroyed after a while but both dogs are aggressive chewers but they last about a year and a half. And they are go to toys they have one that is a shark mouth and they love it I have bought 4. (two of them the pups lost ).
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 20, 2025
A
Verified Purchase
Anjelica
Lexington, US
★★★★★ 4
Durable and Fun, Just Gets a Bit Rough
Size: Medium/Large, Color: Chopper - Large
This is a really good toy overall, especially if you have dogs that love to chew. My dogs were immediately into it—they play with it nonstop, toss it around, and stay entertained for a while, which I love. It definitely holds up better than most toys we’ve tried. The only reason I’m giving it 4 stars instead of 5 is because over time it does start to fray a bit and gets a little rough, especially with heavy chewing. It’s not completely indestructible, but it still lasts longer than a lot of other toys. Overall, still a great buy and I would recommend it if your dogs need something tough but fun!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026
L
Verified Purchase
Lina
Chelsea, US
★★★★★ 5
Worthwhile!
Size: Medium/Large, Color: Turkey Day Drumstick - Large
I have a small dog with a really strong bite! Usually have to buy toys that are meant for bigger dogs. This has lasted us for what feels like forever. It does sound very heavy when dropped! My dog loves it though! Would definitely recommend!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 2, 2026
K
Verified Purchase
Kelly
San Leandro, US
★★★★★ 5
Ohhh Mr. Iguana
Size: Medium/Large, Color: Illana the Iguana - Large
Mr. Iguana is a house favorite! I got my first one of these in a barkbox and my dog loved it so much, i went on the hunt for another one. Amazon saved the day! I own about 7 of these now. They are prefect for dogs just love to chew, they hold up great! And they are heavy duty, super easy to clean! My dogs are very happy, great value for the money! Doesn't have a smell, vibrant colors! Noise level is quiet, minus my dogs chewing !
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Reviewed in the United States on August 13, 2025
S
Verified Purchase
sec682
Dallas, US
★★★★★ 3
Not for strong chewers
Size: Medium/Large, Color: Dog Ness Monster - Large
Initially, I really liked this for my dog. She is about 8 months old and still loves to chew and destroys most toys in a few minutes. When we got this, it seemed like it would hold up for a while despite being clearly gnawed on. Unfortunately, once she focused on the softer "water" portion of the toy, that is where things went downhill with this toy. After a few short chew sessions, she was tearing chunks out of it. We had purchased a replacement since she liked the original so much, and after about 5 minutes with the replacement, she had taken enough out of the blue section that we immediately threw that one out as well. Overall while the green portion held up, the blue didn't. I can't recommend this for strong chewers.
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Reviewed in the United States on December 8, 2025

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