Manufacturer’s reference: hr75072 – Pack of 100 pcs. The indicated price is per pack. HR. Screw Head cilindrica high-low thread for fixing directly in concrete General Features: & # x2022; for the fixing of elements directly to concrete, brick or wood screws (HR, HP and HPZ) and to concrete, brick, block or prefabricated panels (I) & # x2022; Cylindrical HR, HP, HPZ Countersunk or hex head screw with washer printed I. & # x2022; Torx screws (screws HR, HP and HPZ) and hexagonal screw + Slot (I) & # x2022; Special screw high-low ribbed 60/30 HP, HPZ screw and HR) and high-low 60/40, grooved screw (I) & #x2022; Finish in bichromated zinc-plated screws HR, HP), screw (HPZ) and blue ruspert (I) screw, which confers greater resistance to corrosion & # x2022; produces no efforts of screw in the concrete & # x2022; Requires drill prior. & # x2022; Low Head in HP and screw HPZ grooves that allow the direct of soft materials during the drilling countersink & # x2022; Optional: White or Brown in HP and HPZ screw cap. & # x2022; Optional: EPDM washer 16 mm diameter galvanised with screw in I Technical data sheet Material Material of work loads installation fingerprint coating
