In stock
In stock
Description
The partially threaded screw with large washer or washer head is the ideal solution for fastenings in dry indoor spaces or damp areas. It ensures a reliable and powerful connection and is particularly easy and safe to use.
Contents:
10x partially threaded screw
10x lock washer
1x bit large
1x bit small
Optimum power transmission thanks to innovative RW drive
- More power thanks to a larger contact surface on the bit
- Maximum stability and precise work thanks to the plug-in effect and perfect bit fit
- Fewer bit changes as one bit can be used for different screw diameters
- Compatible with the previous AW drive, making it easier for you to change tools
Elegant screw connection resting on the wood
- Outstanding head pull-through values and strong contraction of the timber components thanks to the large head diameter
- Significant reduction in the force required to screw in the screw
High user-friendliness and security benefits
- Minimal splitting effect due to the displacement-milling effect of the end mill
- Low risk of screw breakage due to the high breaking torque
- Safe working without risk of injury from protruding metal chips, as the end mill is integrated in the thread
- High protection of the processing tools
Maximum overspeed protection at high feed rates
- Better force transmission in hardwoods thanks to the reinforced, asymmetrical thread flank geometry of the coarse thread
- Higher anchoring due to optimized thread flanks
Smooth thread start for easy screwing in
- The dome-shaped milling elements in the tip ensure optimized entry and a low splitting effect
- Friction-reduced screwing-in of the thread minimizes the screwing-in effort required
Highest strength and ductility
- A precisely coordinated heat treatment guarantees high strength values and at the same time ensures excellent ductility
Instructions for use
- We recommend the Würth software or other suitable dimensioning aids for planning and dimensioning your installations.
- Do not use screws in directly weathered applications or in damp rooms with a chlorine gas atmosphere. If used outdoors or in damp rooms, you should use ASSY 4 A2 WH or ASSY 4 A2 BP stainless steel screws.
- Our screws are specially optimized for wood and wood-based materials. For applications in plastic dowels, please use screws without an optimized thread tip, such as ASSY D screws.
Approval according to ETA-11/0190
Pay attention to the specifications of the European Technical Approval (ETA) to achieve the best results in your application.
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Dimensions:
Nominal diameter (d) 8 mm Length (l) 220 mm Thread length (lg) 100 mm Head shape Disk head Head diameter (dh) 22.1 mm Head height (k) 3.8 mm Internal drive RW40 Thread type Wood screw thread Thread design Partial thread End mill Yes Thread form Coarse thread Core diameter 5.3 mm Tip shape Tip with tip cutter Point angle 34 degrees Material Hardened steel Surface finish Galvanized Color silver Screw-in angle max. 90 degrees Screw-in angle min. 0 degrees Suitable for substrate Cross laminated timber (CLT), hardwood, LVL Field of application Structural timber construction, element construction, timber construction, timber panel construction, rafter purlin connection Additional accessories Bit fuse Approval ETA-11/0190 RoHS compliant Yes