ASSY® 4 P CSMP universal screw collated Steel zinc-plated partial thread with underhead thread on countersunk head with milling pockets
ASSY 4 P CSMP coll. LB steel zn underhd thrd RW
SCR-CS-MPK-P-MG/A-RW20-(A2K)-4X70/30
ASSY 4 P CSMP
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Ideal power transmission thanks to RW recess
- More power due to larger contact area at the bit
Maximum overtightening safety with high feed performance
- Higher power transmission in hardwoods due to reinforced, asymmetrical thread flank geometry of the coarse thread
- Better anchorage thanks to higher thread flanks
Strong gap-free assembly of components using a second supporting underhead thread with flat incline
Smooth thread start ensures optimised recessing and biting of the screw
- Low gap effect due to displacement effect of the dome-shaped milling elements in the tip
- We recommend using the Würth software or the corresponding design aids for planning and dimensioning your assembly. Dimensioning the ASSY screws can be carried out in the Würth timber construction software from a ∅ of 5 mm
- ASSY 4, ASSYplus 4 and ASSYplus 4 FT chipboard screws are optimised for use in wood and wood materials. For applications in plastic anchors where load capacity can also be reduced, use only screws without an optimised thread tip (tip with milling ribs, drill tip, self-clearing groove etc.), such as the ASSY D screws with countersunk head or pan head
ETA-11/0190 approved
The requirements of the European Technical Approval (ETA) must be observed
Datasheets(X)
Quick series screw connections
Gap-free fastening of tongue and groove planking, packaging and cladding in a wooden substrate
Can be used for applications in indoor and wet areas under the conditions of Class 1 and 2 in accordance with EN 1995-1-1 Section 3.1.5
- Magazine-fed screwdrivers or attachments designed for long belt processing must be used for fixing screws arranged in a long belt
- For optimum use of the screw, the right-size RW bit must be used
- Partial-thread screws are ideal for connecting wooden components
- ASSY screws are approved for quasi-static loads
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Nominal diameter (d) | 4 mm |
Nominal diameter 2 | 4.7 mm |
Length (l) | 70 mm |
Thread length (lg) | 30 mm |
Head type | Countersunk milling pocket head |
Head details | Milling pockets |
Head diameter (dh) | 7.0 mm |
Head height (k) | 2.3 mm |
Internal drive | RW20 |
Thread type | Wood screw thread |
Thread design | Partial thread with underhead thread |
Shaft length | 29 mm |
Thread form | Coarse thread |
Core diameter | 2.5 mm |
Shape of tip | Tip with hilltop milling cutter |
Angle of the tip | 28 Degree |
Material | Steel |
Surface | Zinc plated |
Min./max. screw-in angle | 0-90 Degree |
Belted | Yes |
Suitable for use in the following materials | Building panels, Sandwich profile |
Area of application | Furniture, Press glueing, Board doubling, Casing, Interior fitting |
Suitable machines | Würth BS 13 SEC |
Screw requiring approval | Yes |
Approval | ETA-11/0190 |
RoHS-compliant | Yes |
