How Quickly do Woodscrews Rust? Screw Corrosion Test!

Have you ever wondered how quickly woodscrews start to rust? Are you concerned whether you can use certain screws for outdoor projects? Today I’m starting a very unscientific test to see how long it takes for a bunch of Screwfix screws to rust in normal tap water and salty water.

You can watch Part 1 of this series here:

SCREW RUST TEST (Part 1) How Quickly do Woodscrews Corrode? TEST TUESDAY! [3]

Watch this video on YouTube.

I’m testing a bunch of Screwfix wood screws to see how quickly they rust. One batch in water, one batch in salty water and one batch on a fence open to the elements. In this video I found out that after 20 days pretty much nothing happened. The following screws were tested:

  • Screwfix QuickSilver Round Head – 10ga x 1″
  • Screwfix QuickSilver Countersunk – 10ga x 1.5″
  • Screwfix QuickSilver Countersunk – 10ga x 2.5″
  • Screwfix TurboGold Countersunk – 4mm x 45mm
  • Screwfix Goldscrew Round Head – 4mm x 30mm

How Quickly Do Screws Rust? THE RESULTS!

You can check out the results video here:

Screw Rust Test (Part 2) THE RESULTS! TEST TUESDAY! [16]

Watch this video on YouTube.

I’m absolutely stunned with how corrosion resistant these bog-standard workhorse screws are! There aren’t specifically designed for outdoor use but I would be comfortable using them in all but the harshest environments. Watch this space and I’ll report back on the screws in the fence!

Andy Mac

Andy runs a busy bespoke woodworking business,making everything from custom furniture through to commercial display systems. He's been self employed most of his life, runs various YouTube channels and is co-host of the UK's first commercial joinery podcast.
Andy Mac