In stock
In stock
Description
Partially threaded screw with large washer or washer head is the ideal choice for reliable fastenings, both in dry indoor areas and in damp areas. Perfect for all applications where components need to be securely pulled together.
Contents:
10x partially threaded screw
10x lock washer
1x bit large
1x bit small
.
Excellent power transmission thanks to the innovative RW drive
- More power: The larger contact surface on the bit significantly improves power transmission.
- Greater stability: The plug-in effect and the perfect fit of the bit enable precise, one-handed work.
- Fewer bit changes: You can cover many different screw diameters with just one bit.
- Compatibility: The screw works with the tried-and-tested AW drive, so you don't need any additional tools.
Strong screw connection for a reliable connection
- High head pull-through values: The large head diameter ensures that the wooden components are pulled together strongly, which makes the joint particularly stable.
- Effort-saving screwing in: Thanks to the special design, the force required to screw in the screw is significantly reduced.
High user-friendliness and security
- Minimal splitting effect: The end mill ensures a low splitting effect when plunging and protects the wood.
- Reduced risk of screw breakage: The high breaking torque ensures greater safety during use.
- Safe working: The integration of the end mill into the thread reduces the risk of protruding metal chips, which increases your safety.
Maximum performance for every screwdriving job
- Better power transmission: The reinforced, asymmetrical thread flank geometry of the coarse thread ensures more power, especially in hardwoods.
- Greater anchoring: The optimized thread flanks provide stronger anchoring and therefore greater strength.
Smooth thread start-up for easy handling
- Optimized screwing-in: The dome-shaped milling elements in the tip reduce the splitting effect and ensure friction-free screwing in of the thread.
- Less screwing-in force: The friction-minimized process reduces the force required when screwing in.
Outstanding strength and ductility
- Coordinated heat treatment: This ensures high strength values and at the same time guarantees high ductility of the screw.
Important notes on use
- For planning and dimensioning your assembly, we recommend using the Würth software or corresponding dimensioning aids. The Würth timber construction software can be used to dimension ASSY screws from a diameter of 5 mm.
- Not suitable for directly weathered applications or in damp rooms with a chlorine gas atmosphere. For outdoor areas or rooms with high humidity, we recommend ASSY 4 A2 WH or ASSY 4 A2 BP stainless steel screws.
- Our ASSY 4, ASSYplus 4 and ASSYplus 4 VG chipboard screws are perfect for wood and wood-based materials. When using in plastic dowels, you should only use screws without an optimized thread tip, such as the ASSY D screws.
Approval according to ETA-11/0190
Please observe the specifications of the European Technical Approval (ETA) for optimum use of the screws.
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Nominal diameter (d) 8 mm Length (l) 300 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