Materials and Methods
Q'Straint rear tie-down belts along with stainless steel floor pockets and fastening hardware are static pull tested with every shipment.

The rear belt 'S' Hook is held by a pin, representative of wheelchair tubing, to the moving head of the tensile testing machine while the flat hook at the bottom end of the belt is placed in the floor pocket. The floor pocket is held in place with Q'Straint standard nut, bolt and washer to a rigid 45 degree fixture in the stationary base of the testing machine.

Results from the recent production presented below with a typical graph of load versus time.