SKU: 73785608943

Hillman 5/16-18 x 4-1/2 in. Stainless Steel Hex Head Cap Screw, 25-Pack

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Description

Hillman 5/16-18 x 4-1/2 in. Stainless Steel Hex Head Cap Screw, 25-PackStainless Steel 5 16 18 x 4 1 2 in. Hex Cap Screws (25 Pack) Durable Hillman hex head cap screws made from stainless steel for superior corrosion resistance. Sized 5 16 18 x 4 1 2 in., these fasteners are ideal for securing components in marine, outdoor, and general construction applications. Key Features: Corrosion Resistant Stainless Steel: Resists rust for long lasting performance in outdoor and marine environments Hex Head, Machine Thread:

Stainless Steel 5/16-18 x 4-1/2 in. Hex Cap Screws (25-Pack)

Durable Hillman hex head cap screws made from stainless steel for superior corrosion resistance. Sized 5/16-18 x 4-1/2 in., these fasteners are ideal for securing components in marine, outdoor, and general construction applications.


Key Features:

  • Corrosion-Resistant Stainless Steel: Resists rust for long-lasting performance in outdoor and marine environments
  • Hex Head, Machine Thread: Provides strong torque transfer and secure fastening with a nut or tapped hole
  • 5/16-18 x 4-1/2 in. Size: Coarse thread pitch for reliable grip in common assemblies
  • Partial Thread Design: Helps reduce shear and improves clamping force where unthreaded shank is beneficial
  • Value Pack: Convenient 25-count pack for project or jobsite use

Specifications Table:

Specification Details
Thread Size 5/16-18 (coarse)
Length 4-1/2 in
Head Type Hex head cap screw
Material Stainless steel
Pack Quantity 25 pieces

Frequently Asked Questions (FAQ):

Q: What materials are these screws made from?
A: Stainless steel, offering excellent resistance to rust and corrosion.


Q: What is the thread size and length?
A: 5/16-18 coarse thread with a 4-1/2 inch overall length.


Q: Do I need to pre-drill?
A: Pre-drilling a hole matching the bolt diameter is recommended for best results in most materials.


Q: What tools are needed for installation?
A: Use a wrench or socket sized for the hex head; pair with a matching nut and washer if not threading into a tapped hole.


Q: Are these suitable for outdoor or marine use?
A: Yes, the stainless steel construction makes them suitable for outdoor and marine environments.


Sleek Stainless Hardware With Purpose

There’s a quiet confidence in stainless steel—clean, cool, and impeccably refined. These hex cap screws bring a polished industrial note while delivering steadfast strength. Use them to accent exposed joinery on shelving or hardware details where function meets design. A small detail that elevates the whole space with resilient luxury.


Upgrade your build with stainless strength—add this 25-pack to your cart and fasten with confidence.

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: 73785608943

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4.3 ★★★★★
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Skurtzo
Natrona Heights, US
★★★★★ 4
A little snug on the thighs
Size: Medium, Color: Multicoloured G (5-pack)
Super comfy, soft and thin. For reference, I'm 5'6", 135, athletic build. I bought medium. I almost returned them because I thought they were a bit too snug on my thighs, and my thighs are not large at all. I was concerned about panty lines under snug clothing. But, because they're thin, I figured they would probably stretch, so I kept them. So far, I've only worn them under a night shirt, but they're super comfortable and they dont ride up at all. Very nice, but if your thighs are a little thick, you probably won't like them.
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Reviewed in the United States on August 29, 2025
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Shanna
Charlottesville, US
★★★★★ 5
Functional + Sexy
Size: Small, Color: Multicoloured E-(5-pack), Size: Small, Color: Multicoloured E-(5-pack)
Not only do these feel good, my husband can’t keep his hands off me. They fit so good and are soft. I change into these to sleep but also just use them as shorts to wear around the house. They’re comfortable and don’t slide around. I got a size small and I’m 100lbs.
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Reviewed in the United States on April 13, 2026
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ClairY
Omaha, US
★★★★★ 5
Finally!
Size: X-Large, Color: All Black D (5-pack)
Finally, comfortable underwear that don’t end up giving me a wedgie. I have a round booty and most cuts of underwear end up shifting as I walk and sit. The hem of the underwear comes right under my cheeks and the lightweight material ensures there’s no panty line and no shifting to where I don’t want them! I’m definitely purchasing more.
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Reviewed in the United States on May 17, 2026
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Amazon Customer
Los Angeles, US
★★★★★ 3
Ehh
Size: Medium, Color: Multicoloured E-(5-pack)
Very thin, still comfy but very thin material. Super soft though. I've worn and washed and they have held up but I won't be repurchasing bc these are so thin
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Reviewed in the United States on April 14, 2026
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Grma4m&m
New York, US
★★★★★ 5
They’re fantastic!!!!
Size: X-Large, Color: Multicoloured E-(5-pack)
My clothing size is 16/18 and XL. Even though Amazon suggested a size XXL, I ordered my normal XL and they fit perfectly. The fabric for this style is 92% bamboo viscose and is amazingly soft and almost silky feeling. I had ordered a different boy short in this brand but they were 80% bamboo viscose and the fabric was significantly heavier. I returned those and ordered these.
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Reviewed in the United States on April 25, 2026

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