Hillman 5/16-18 x 4 in. Stainless Steel Hex Head Cap Screws (25-Pack)
SKU: 69585900087

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

Sale price$37.79 Regular price$41.99
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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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DollarBill
Cuba, US
★★★★★ 5
Great Room divider
Color: Beige, Size: 34"- 3 Panel
Works well in separating my kids play area from my computer/office room. Easy to put together, height is perfect somewhat sturdy, looks great, light weight, not good if you are using it as a door, but if it is to stay in place than it is stable enough.
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Reviewed in the United States on September 3, 2025
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Verified Purchase
zakah123
Boise, US
★★★★★ 5
Exactly what I needed
Color: Black, Size: 34"- 3 Panel, Color: Black, Size: 34"- 3 Panel
It was easy to put together even without a power drill. Completely opaque. Only a very small slit between poles. I plan to add black electrical tape, but that's because I don't want nosies peeking through to see my screen. The height is beautiful. I was afraid it wouldn't be as tall as I needed. But it is perfect. I share a small office with a good buddy of mine. People passing by our door is distracting and invites them to speak to me. I needed something that would stop the former and prevent the latter, especially when I'm deep in concentration mode. The two panels are enough to block outsiders and the third panel I will employ when I can't even be disturbed by my officemate. It's the fastest and easiest signal not to disrupt me at all. 10/10
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Reviewed in the United States on August 3, 2025
M
Verified Purchase
mrcricket
Louisville, US
★★★★★ 3
Packaging contents
Color: Grey, Size: 34"- 3 Panel
Item is as described however this one appeared to be open and some parts possibly used. Example pole packaging mislabeled one had the letter K as a part there is no letter K item in the instructions. Another pole part had a taped on letter A which is completely different from the others thus indicating that it was opened or substituted. Finally after the partition was completely put together one of the bottom screw connection anchors came out making the partition unable to stand. I'm going to have to rig something up in order to get the anchor connected to the bottom panel. In closure the partion could be very acceptable and do the job if it was new and parts labeled correctly. I have pictures of all parts and packaging errors. Would buy again if new. I'm going to pursue some kind of compensation.
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Reviewed in the United States on March 15, 2026
W
Verified Purchase
Wendy Gray
Charlottesville, US
★★★★★ 5
Great product
Color: Grey, Size: 34"- 6 Panel
This room divider is great. It was easy to put together. I was worried about it standing up right and not falling over. It stays up perfectly and is very easy to move and adjust to the shape I want it. Also, from one of the videos I watched it looked like the fabric was puckered in the panels. That is not the case at all. The fabric fits tightly in each panel for a nice smooth look. I would definitely recommend this and would buy again if needed.
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Reviewed in the United States on March 3, 2025
A
Verified Purchase
Alex caine
Waukegan, US
★★★★★ 1
Awful.
Color: Black, Size: 22"- 4 Panel
Easiest one star review ever. I'm writing this with bloody fingers from assembling this. Multiple poles were bent, none of the pole connectors worked, the hex wrench broke in my hand, the screws didn't really go into the holes provided (I had to get a friend with a press drill to widen the holes to make it work), there are sharp edges on the poles where there is a seam, and doesn't look that great once assembled. Easy do not buy, the only reason I didn't return is because it would have been tough to disassemble the half I got through in the first 5 hours of building (mostly spent fixing the product delivered)
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Reviewed in the United States on December 30, 2025

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