ASSY®plus 4 CSMR 60 FLOOR flooring screw Hardened zinc-plated steel, partial thread countersunk milling head 60°
ASSYplus 4 CSMR floor steel zp PT cs mill. head RW
SCR-CSMR-DBIT-RW10-(A2K)-3,5X40/22
ASSYPLUS 4 CSMR60 FLOOR
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Ideal power transmission thanks to RW drive
- More power due to larger contact area at the bit
- More stability, one-handed working, precise positioning due to the tight-fit recess and perfect fit of the bit
- Fewer bit changes, one bit for many screw diameters
- Compatibility with previous AW drive
Precise positioning and very clean drilling due to advanced centring drill tip
- Positioning and drilling without chipping
- Maximum drilling performance and precise drilling process through drilling cutting edges (similar to Forstner bits)
- Precise positioning on hard surfaces without slipping thanks to centring pin
- Quick screwing due to gentle start of thread
Easy countersinking in hardwood/softwood with high knot content as well as hard wood fibreboards
- Small 60° countersunk head and therefore narrower geometry for use in seams or with tongue-and-groove connections
- Reduced splitting of component to be mounted when immersing the screw
- Very high milling performance due to milling ribs located at the countersunk head
Maximum reliability of the screw connection due to asymmetrical single thread
- Optimal matching of drill tip and thread geometry
- Excellent anchoring in wood due to asymmetrical arrangement of thread flanks
High strength values and ductility
- Adjusted heat treatment guarantees high strength values and high ductility
- Do not use the screw in applications with direct exposure to the elements or in humid rooms with atmospheres containing chlorine gas. Please use ASSYplus 4 stainless steel screws for outdoor applications and rooms with constant high humidity
- We recommend using the Würth software or the corresponding design aids for planning and dimensioning your assembly. Use the Würth timber construction software for dimensioning of ASSY screws from a diameter 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
Datasheets(X)
For wood-wood connections designed to pull together
A wood-wood connection designed to pull together is possible owing to partial thread starting immediately after the shank. The thread in this case is positioned entirely in the lower second component.
For applications in utilisation class 1 and utilisation class 2 (from ∅ > 4 mm)
- High-quality surface protection, zinc, blue-passivated chromium(VI)-free 5 µm layer thickness
- Suitable for use in utilisation class 1 (interior) and from ∅ > 4 mm in utilisation class 2 (wet area or covered outdoor area) according to EN 1995-1-1:2010-12 + DIN SPEC 1052-100:2013-08
- For optimum use of the screw, the right-size RW bit must be used
- Full-thread screws are suitable for reinforcing and creating high-load-bearing connections of two components. Components should be connected without any gap
- If countersunk head screws are used for a metal-to-wood mounting, the metal to be connected must be provided with suitable countersunk holes
- For a load-bearing wood-metal connection, ASSY screws must be tightened to a specific torque value. Tightening torque = required prevailing torque x 1.2 < 90% of the breaking torque
 | |
Nominal diameter (d) | 3.5 mm |
Length (l) | 40 mm |
Thread length (lg) (lg) | 22 mm |
Screw-thread length with drill tip (b) (b) | 25.5 mm |
Head type | Countersunk head 60 degree |
Head details | Milling ribs |
Head diameter (dh) | 6 mm |
Head height (k) | 3.5 mm |
Internal drive | RW10 |
Thread type | Wood screw thread |
Thread design | Partial thread |
Design | With shaft |
Thread form | Single start thread |
Core diameter | 2.1 mm |
Shape of tip | Drilling tip |
Material | Hardened steel |
Surface | Zinc plated |
Max. screw-in angle | 90 Degree |
Min. screw-in angle | 0 Degree |
Suitable for use in the following materials | Board ply wood (BSP), Wood, Derived timber product, Hardwood, LVL, Softwood, Construction timber (KVH) |
Area of application | Furniture, Body, Store construction, Exhibition stand construction, Interior fitting |
Approval | ETA-11/0190 |
Product weight (per item) | 1.878 g |
RoHS-compliant | Yes |
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