240pc Assorted Box of Self Drilling Tek Screws - 240 hex head self drilling screws in three gauges, No. 8, No. 10 and No. 12, in lengths from 1/2" to 1", in zinc plated carbon steel.
A self drilling screw cuts its own pilot hole as it goes, so sheet metal and thin section can be fixed in one pass with no need to drill first. The hex head takes a nut driver or a socket rather than a screwdriver bit, so the driver stays put under load and you can lean on it. Between them the three gauges cover most sheet metal, cladding, ducting and bracket work.
Box contents (240 pieces total) 35 x No. 8 x 1/2" (4.2 x 13mm) 35 x No. 8 x 3/4" (4.2 x 19mm) 35 x No. 8 x 1" (4.2 x 25mm) 35 x No. 10 x 1/2" (4.8 x 13mm) 30 x No. 10 x 3/4" (4.8 x 19mm) 30 x No. 10 x 1" (4.8 x 25mm) 20 x No. 12 x 1/2" (5.5 x 13mm) 20 x No. 12 x 1" (5.5 x 25mm)
Suitable for Sheet metal and steel section, cladding and roofing sheet, ducting and trunking, brackets, frames and fixings, workshop and site repairs
Also known as tek screws, self drilling screws, self tappers, hex head drill screws, or a self drilling screw assortment. No. 8, 10 and 12 correspond to roughly 4.2mm, 4.8mm and 5.5mm diameter.
