PVC and Aluminium Base Profile Fixings 100 Per box Masonry Substrate Hammer Screw Fixings Maximum 1 per 300mm centres Occupational exposure limits Substance Total Inhalable Total respirable Iron Oxide 5mg/m3 10mg/m3 Zinc Oxide 5mg/m3 10mg/m3 Handling When using hand tools eye protection should be worn. Screw-points and threads may be sharp. Gloves should be worn when handling the material to avoid risk of lacerations. Head protection should be worn when overhead hazards exist. Supplied in cartons, which should be stacked in a safe and stable manner to avoid spillage. Open boxes at the perforation to minimise potential waste.