Designed as an alternative to the traditional coach screw mainly used for timber to timber applications. Manufactured from A4 Stainless Steel for ultimate corrosion resistance making it ideal for external applications. Stainless steel must be used where there is corrosive environment and/or where the base material has inherent corrosive characteristics e.g. Green Oak. CE Standard Web BS EN 14592:2008 Colour Silver Corrosion Rating 5 - Industrial & coastal areas with an aggressive salt atmosphere Description Designed as an alternative to the traditional coach screw mainly used for timber to timber applications. Manufactured from A4 Stainless Steel for ultimate corrosion resistance making it ideal for external applications. Stainless steel must be used where there is corrosive environment and/or where the base material has inherent corrosive characteristics e.g. Green Oak. Fixed Washer Dia. mm 12.00 Head Dia. mm 16.08 Head Type Hex Inner Thread Dia. mm 4.40 Length mm 250 Material Austenitic Stainless Steel (A4-316) Pack Dimensions L x W x H mm 58 x 58 x 138 Pack Weight kg 1.080 Point Type 25° Sharp with Single Slash Product Code 250INDEXSST Shank Type Helix Size mm 6.7 x 250 Socket Size mm 8 Substrates Hardwood, Softwood, Green Oak Thread Dia. mm 6.7 Thread Length mm 52 Thread Type 50° Single Deep