A single thread woodscrew mainly used in various types of timber and man-made boards or into masonry with the use of a plastic plug. CE Standard Web BS EN 14592:2008 Corrosion Rating 1 - Clean, dry & low humidity environments Description A single thread woodscrew mainly used in various types of timber and man-made boards or into masonry with the use of a plastic plug. Driver Bit Size SQ2 Finish Zinc Gauge 8 Head Dia. mm 7.87 Head Type Pan Inner Thread Dia. mm 2.50 Length inch Length mm 20 Lubrication Wax Material Carbon Steel Pack Dimensions L x W x H mm 70 x 58 x 34 Pack Weight kg 0.336 Point Type 25° Sharp Product Code 40020SQPSZ Recess Type Square Size imp. 8 x Size mm 4.0 x 20 Substrates Softwood, Chipboard, MDF, Masonry (with plug) Thread Dia. mm 4.0 Thread Length mm 20 Thread Type 40° Single Deep