TORX Round Head Universal Wood Screw

The main distinguishing feature of the universal round head TORX wood screw is a six-point star-shaped recess. Otherwise it is a standard sharp-point self-tapping screw for fastening thin sheets of metal, plastic and other materials to wooden structures. The TORX star recess was patented by Textron Fastening Systems in 1967; since then, the Torx and Torx Plus trademarks have been used to denote both the recess itself and the tool for driving it. This fastener is considered tamper-resistant: it cannot be driven or removed without a special tool.

The materials used are traditional for most fasteners — carbon steel grades with electroplated or hot-dip zinc coating, as well as austenitic chromium-nickel alloys of class A2, A4. The coating protects hardened metal parts from corrosion and aggressive environmental effects.

Materials:

• Coated steel: electro-galvanized, hot-dip galvanized
• Stainless steel: A2.

Dimensions of universal wood screws:

d1 mm
k mm
Torx No.	10	15	15	25	25	30
L mm	d mm
	3.0	3.5	4.0	4.5	5.0	6.0
12
16
20
25
30
35
40
45			*		*
50			*	*	*	*
60			*	*	*	*
70					*	*
80					*	*
100						*
120						*

* - partial thread.