NEW GWZ Threaded Shaft screws with cylindrical heads suitable for: wood based panels; solid timber; glue laminated timber; CLT, LVL and high density woods in service class 1 and 2 applications. Part of the Rothoblass Holztechnic range.
Key Performance Characteristics
Deep thread and high resistance steel
High torsional strength
Cylindrical head ideal for concealed joints, timber couplings and structural reinforcements
Chromium free
Galvanized Carbon steel
Diameter 5.3mm, 5.6mm, 7.0mm, 9.0mm, 11mm
Lengths 80mm to 600mm
Technical Properties
Nominal Diameter | d1 | mm | 6 | 8 |
Head Diameter | dk | mm | 8.0 | 11.00 |
Tip Diameter | d2 | mm | 4.0 | 5.2 |
Pre-drilling hole diameter | dv | mm | 4.0 | 5.0 |
Characteristic Yield Moment | Myk | Nmm | 10,000 | 20,000 |
Characteristic withdrawal resistance parameter | Fax,k | N/mm2 | 11.0 | 11.0 |
Characteristic yield strength | Fy.k | N/mm2 | 1.000 | 1.000 |
Characteristic tensile strength | Ftens,k | kN | 12 | 21 |