Our metal buckles do not slip. Period! Our competitors use plastic buckles that slip under load, slip when wet, and do not tighten effectively. Most plastic buckles do not even have a designed load limit! EZ-Screen's metal cam buckles have a load limit. The maximum load limit with our fail safe hurricane screen design is 2650 lbs. That is 6 1/2 times the tested and certified load limit of our hurricane screen. Our competitors tell their customers to tie a knot or place a grommet below the buckle to stop the attachment from loosening. So why do they use plastic buckles? Cost! So why do we use metal buckles? Safety!

Laderlock Plastic Buckles are used in many competitor's hurricane screens .
Following statement is taken from ITW Nexus Website (Manufacture of Laderlock plastic buckles.)
"All Ladderlocs, including our newest model, the Mako, incorporate a patented design that minimizes slippage of the webbing while allowing smooth and easy tightening."
Even the manufacturer acknowledge a tendency for slipping. When the environment is wet (common to hurricanes) and a high rate of cyclical positive and negative pressures, slipping becomes more prevalent. Moisture, the weave of the webbing, and the webbing's material also significantly affect the amount of slippage. This is why plastic buckles are not load rated.
Many screen manufacturers inform the consumers to tie knots below the buckles to stop total failure. (this attempt to fix the defect has never been tested to see if it actually works.)
Ez-Screens zinc cam buckles are load rated and do not slip. When higher the pressures are applied, the more engaged the cam becomes tightening the connection even further..