An alternative to the self-tapping thread version. This metric threaded screw has multiple uses for fitting a variety of hardware to frames where there is a steel reinforcement present. Approval All tested to BS EN ISO 9227:2006. UKAS Accredited. In accordance with BS 7412 and both the BPF and GGF guidelines. Corrosion Rating 2 - Occasionally damp/wet, rural and sheltered areas Description An alternative to the self-tapping thread version. This metric threaded screw has multiple uses for fitting a variety of hardware to frames where there is a steel reinforcement present. Driver Bit Size PH2 Finish Zinc Head Type Countersunk Length mm 38 Material Carbon Steel Max Drilling Thickness mm 2.5 Pack Dimensions L x W x H mm 135 x 90 x 90 Pack Weight kg 1.492 Point Type Self-Drilling Product Code 155Z Recess Type Phillips Size mm M4 x 38 Substrates Steel Thread Dia. mm M4 Thread Type Metric