Specifically designed to attach wood to light section steel (Max. 3mm). Coarse self-tapping thread with wings designed to ream out the timber, so the screw can achieve Max. R.P.M. without burning out. When the wings hit the metal they will break off to permit the thread to self-tap into the metal.

Brand Name	TIMCO
Colour	Silver
Material	Case & Core Hardened Carbon Steel
Type	Drill Screw
Drill Tip Angle degree	110
Drill Tip Length mm	13.00
Drill Tip Width mm	3.40
Driver Bit Size	PH2
Effective Thread Length mm	19
Finish	Exterior (Silver Organic)
Head Dia. mm	9.50
Head Height mm	4.00
Head Type	Countersunk with Ribs
Included Items	PH2 S2 Bit (Qty 1)
Length mm	38
Max Drilling Thickness mm	3.0
Max Fixture Thickness mm	20
Pack Dimensions L x W x H mm	95 x 90 x 65
Pack Weight kg	0.700
Point Type	Self-Drilling No.3
Product Code	LW4238S
Rec RPM	1,000 - 1,800
Recess Type	Phillips
Size mm	4.2 x 38
Substrates	Steel, Timber
Thread Dia. mm	4.2
Thread Type	Coarse Self-Tapping
To Suit Timber mm	<18
Wing Tip Width mm	5.00