SKU: 58263404600

Hillman 5/16-18 x 3 in Stainless Steel Hex Head Cap Screw, 50-Pack

Sale price$56.69 Regular price$62.99
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Description

Hillman 5/16-18 x 3 in Stainless Steel Hex Head Cap Screw, 50-PackStainless Steel Hex Head Cap Screw, 5 16 18 x 3 in (50 Pack) Durable 18 8 stainless steel hex head cap screws built for high torque fastening in tapped holes or with a nut. Coarse 5 16 18 threads and a washer face under the head deliver secure, leak resistant clamping for indoor and outdoor projects. Key Features: Corrosion Resistant Stainless Steel: 18 8 grade resists rust for outdoor and marine applications High Torque Hex Head: Machine threads and

Stainless Steel Hex Head Cap Screw, 5/16-18 x 3 in (50-Pack)

Durable 18-8 stainless steel hex head cap screws built for high-torque fastening in tapped holes or with a nut. Coarse 5/16-18 threads and a washer face under the head deliver secure, leak-resistant clamping for indoor and outdoor projects.


Key Features:

  • Corrosion-Resistant Stainless Steel: 18-8 grade resists rust for outdoor and marine applications
  • High-Torque Hex Head: Machine threads and hex cap enable strong, reliable tightening with wrench or drill
  • Washer Face Seal: Integrated bearing surface under the head improves load distribution and sealing
  • USS Partially Threaded Shank: Provides alignment and shear strength where full thread isn’t needed
  • Bulk Value: 50 pieces per retail pack for jobsite or workshop stock

Specifications Table:

Specification Details
Size 5/16-18 x 3 in
Thread Type Coarse (USS)
Material 18-8 Stainless Steel
Head Type Hex head cap screw
Shank Partially threaded
Washer Face Under-head bearing surface for better seal
Number in Package 50
Packaging Type Boxed
Use For tapped holes or with a nut; tighten with wrench or drill

Frequently Asked Questions (FAQ):

Q: What thread size are these screws?
A: They are coarse 5/16-18 machine-thread hex head cap screws.


Q: Are they fully threaded?
A: No. They are USS style with a partially threaded shank for added strength and alignment.


Q: Can these be used outdoors?
A: Yes. The 18-8 stainless steel provides excellent corrosion resistance for outdoor and damp environments.


Q: Do they require washers?
A: They feature a washer face under the head for improved sealing, but separate washers can be added if needed for specific applications.


Q: How are they installed?
A: Tighten with a wrench or a drill into a tapped hole or use with a matching 5/16-18 nut.


Sleek Stainless Fasteners with Architectural Poise

These polished hex cap screws bring a refined industrial edge to cabinetry, hardware, and exposed joinery. The crisp hex head and elongated shank create a clean, linear statement while the stainless sheen elevates everyday fixtures. Style them with brushed steel brackets or contrast against matte black frames for a tailored, modern look. A quiet essential, they deliver strength and sophistication in one elegant detail.


Stock your project with this 50-pack of corrosion-resistant hex cap screws for dependable, clean-lined fastening anywhere you need it.

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: 58263404600

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Product Reviews
C
Verified Purchase
Cmark
Omaha, US
★★★★★ 5
Best thing for boredom
My dog loves the Benebone especially when he is bored. He loves the chicken one the best. When the edges start to splinter or get rough, we get him a new one.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 11, 2026
M
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Michael K.
Fort Morgan, US
★★★★★ 5
My Dog Is Obsessed — Long-Lasting and Worth Every Penny
The Benebone Wishbone is hands-down one of my dog’s favorite chew toys. He cannot get enough of it. The real chicken flavor keeps him interested, and the wishbone shape gives him a solid grip from any angle. What stands out is the durability. My dog is a strong chewer, and this thing holds up far better than most toys on the market. No soft spots, no chunks breaking off, and no mess—just a tough, long-lasting chew that keeps him busy. Made in the USA is a bonus, and the medium size works great for a wide range of breeds. If you’ve got an aggressive chewer or a dog who goes nuts for flavored bones, this one is absolutely worth having in the rotation.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 24, 2025
L
Verified Purchase
Lott
Birmingham, US
★★★★★ 4
Great dog chew lasts a while, enjoyed by most every dog
These bones are great for a few small, yet significant reasons. Bottom line up front: They're great and a dog owner would be well served to pick up one or two of these as a long term chew toy your dog is almost sure to love. 1) The first being the odd shape of the bones. The shape enables the dog to pick up the bones with ease rather than some of the more flat bones or chews which can lead to a struggle and frustration. The three prongs and the elevated middle portion alleviate this concern. 2) These bones aren't ground material shaped into a bone shape, they are tough, plastic-like substances. They have a very subtle aroma of the flavor they are supposed to be (bacon, chicken, etc) but are completely safe for the dogs to munch on. The best part of the bones being this substance is that they last quite a long time. 3) The bones are lightweight and won't hurt you if you stub your toe as you walk around the house barefoot. 4) Dogs seem to love them. Only the most picky or reclusive dogs will ignore these bones.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 30, 2015
D
Verified Purchase
Danielle
New York, US
★★★★★ 5
Good size, lasts a long time
Dog likes these. She has her moments when this is only chew toy she wants, and spends days gnawing on it. She likes these bacon and chicken flavors. I like the fact that there is no squeak. This is a good size for full size Aussie, and I also like that she doesn’t “throw” these at me, she lays on the couch or floor and chews. They help to keep her teeth clean from plaque and tartar, so to me they are very functional. This is 4th or 5th buy again, so I wouldn’t buy again if she didn’t like. It does take a while for her to chew to point of needing new, since I keep variety of chew toys for her.
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Reviewed in the United States on January 18, 2026
J
Verified Purchase
Jazzlynn
Charlottesville, US
★★★★★ 5
Great chew
My pup’s favorite, great quality and it doesn’t give him a tummy ache. Lasts a good while and keeps him occupied.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 29, 2026

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