Countersunk Wings #3pt Countersunk Wings #3pt Timber to light section steel purlins and rails. M4.8 × 25 M4.8 × 32 M4.8 × 38 M4.8 × 45 M5.5 × 38 M5.5 × 50 M5.5 × 55 M5.5 × 75 INQUIRY