SKU: 73785608943

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

Sale price$38.69 Regular price$42.99
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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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4.4 ★★★★★
Based on 702 reviews
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Product Reviews
A
Verified Purchase
Amazon Customer
Los Angeles, US
★★★★★ 5
Excellent, clean look
Style: 1-Speaker
Great wall plate for that clean, in wall wiring look. Easy to install and connections are solid.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 26, 2025
T
Verified Purchase
Talisman
Battle Creek, US
★★★★★ 4
Great...but could be a bit better
Style: 2-Speaker
Almost perfect. Easy to screw apart and insert wires to both the back and to the front, or do what I did and screw the wire onto the back and then use a banana plug for the front. My only complaints are that the back piece sits off the wall a little, so the plate doesn't fit flat and tight against the wall. It leave a little gap around the edges. The other complaint is that the back piece has some flex in it, which makes me nervous when I push plugs into and out of it. I think it probably will hold up fine, but it feels a little oogy to push banana plugs into it and see it flex. Comes with all the hardware needed. Just need a philips screwdriver and wire cutters and you're good to go. Super easy to use, and way better than the spring loaded connections it replaced.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 12, 2017
U
Verified Purchase
ulisses
West Palm Beach, US
★★★★★ 5
Built well
Style: 4-Speaker
Still working great no issues with sound quality.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 17, 2026
L
Verified Purchase
LTD
Alexandria, US
★★★★★ 5
Really good wall plates
Style: 1-Speaker
These plates came on time, packaged well and are "doing the trick". The plates, while fairly light-weight are perfect for my new system. They installed into the junction boxes very easily, hold the wires snugly and the banana plugs are perfect for my usage. If you need a nice, easy to install, good quality, wall plate, I would highly recommend these.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 30, 2025
J
Verified Purchase
J. ILG
West Palm Beach, US
★★★★★ 5
Is probably heaver than you think
Style: 4-Speaker
Quality is decent, weight is heavy, threads of the screw portion seem of quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 18, 2026

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