ASSY<SUP>®</SUP>plus 4 FBS RCS window construction screw Hardened steel zinc-plated full thread raised countersunk head - SCR-RCS-DBIT-RW20-(A2K)-4X40/30

ASSY^®plus 4 FBS RCS window construction screw Hardened steel zinc-plated full thread raised countersunk head

Name: ASSY ® plus 4 FBS RCS window construction screw Hardened steel zinc-plated full thread raised countersunk head
Brand: Würth
SKU: 0178744040

ASSYplus 4 FBS RCS ST zp FT cs stop groove head RW
SCR-RCS-DBIT-RW20-(A2K)-4X40/30
ASSYPLUS 4 FBS RCS

Art.-no. 0178744040

EAN 4061975503084

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ASSY^®plus 4 FBS RCS window construction screw Hardened steel zinc-plated full thread raised countersunk head

Art.-no. 0178744040

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Quantity

x 500 pcs

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Special full threaded screw with raised countersunk head and restraining ribs for gap-free fastening close to edges. For mounting of metal fittings to timber windows without pre-drilling the wood

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

Visually appealing connections in window construction

Lens-shaped, rounded head for a visually appealing window fitting connection

The spring-loaded effect of the restraining ribs prevents the screw from overturning and destroying the 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

Small edge distances

Drilling in locations with small permissible edge distances (3xd) is possible thanks to a wedge-shaped drill tip with parallel cutting edges

Assembly without gaps

The wood does not split and rupture

Notice

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. Dimensions of 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.

Product information

Würth Catalogue

Datasheets(X)

Certificates/ Documents

Application area

For steel-wood connections designed for tensile forces

The full thread starting immediately below the head allows for e.g. fitting-wood or sheet material-wood connections designed for tensile forces with high load-bearing capacity. Greater screw pull-out force is achieved by the maximum thread length.

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

Instructions

For optimum use of the screw, the right-size RW bit must be used

Full-thread screws are suitable for secure mounting of fittings or thin materials. The screw length to be selected should be less than the plate thickness of substrate the screw is to be driven in

If countersunk head screws are used for a metal-to-wood mounting, the metal to be connected must be provided with suitable countersunk holes


Material	Hardened steel
Surface	Zinc plated
RoHS-compliant	Yes
Nominal diameter (d)	4 mm
Length (l)	40 mm
Head diameter (d_h)	7 mm
Head height (k)	1.6 mm
Internal drive	RW20
Thread length (lg)	30 mm
Screw-thread length with drill tip (b)	33.5 mm
Head type	Raised countersunk head
Head details	Restraining ribs
Thread type	Wood screw thread
Thread design	Full thread
Thread form	Single start thread
Core diameter	2.5 mm
Shape of tip	Drilling tip
Product weight (per item)	2.250 g
Min. screw-in angle	0 Degree
Max. screw-in angle	90 Degree
Suitable for use in the following materials	Board ply wood (BSP) Wood Derived timber product Hardwood LVL Softwood Construction timber (KVH) OSB Chipboard Solid wood panel (SWP)
Area of application	Windows Fitting Furniture
Approval	ETA-11/0190
Declaration of performance (EU-CPR)	Yes

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