Universal self-tapping screw with countersunk TORX head

The universal self-tapping screw with countersunk TORX head features a flat top surface of the head with a hexalobular star-shaped recess. The fastener is considered tamper-resistant: working with it requires a special tool under the TORX brand. It is used with virtually any material — wood, plastic, thin sheet metal. The countersunk head design ensures a tight fit of the screw, while its top sits flush with the surface of the material being fastened.

The main manufacturing material is carbon steel with an electro-galvanized or yellow passivated coating for corrosion protection. Austenitic alloys, including those containing molybdenum, are also used. Fasteners made from such material withstand contact with acids, alkalis, and caustic salts without changes to their properties.

d1	7.0	8.0	8.8	9.7	11.6
k	2.1	2.5	2.7	2.9	3.4
Torx no.	15	15	25	25	25

L (mm)	d
	3.5	4.0	4.5	5.0
12
16
20
25
30
35
40
45
50

d1	7.0	8.0	8.8	9.7	11.6
k	2.1	2.5	2.7	2.9	3.4
Torx no.	15	15	25	25	25

L (mm)	d
		4.5	5.0	6.0
50
60
70
80
90
100
120