ASSY^® 4 PH fittings screw Steel zinc plated full thread pan head

Name: ASSY ® 4 PH fittings screw Steel zinc plated full thread pan head
Brand: Würth
SKU: 0153740012

ASSY 4 PH steel zinc ptd. full thread pan head RW
SCR-PANHD-WO-RW20-(A2K)-4X12/10,5
ASSY 4 PH

Art.-no. 0153740012

EAN 4061975605641

All versions

Specification

Full-thread screw with visually appealing pan head for universal fixing of metal fittings or plastic supports in wood in indoor dry or sheltered areas

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

Flat fastening metal sheets for secondary purposes

Flat, cylindrical pan head rounded with a lens

Large surface contact area

No over-tightening or stripping and high feed

Higher power transmission in hardwoods due to reinforced, asymmetrical thread flank geometry of the coarse thread

Better anchoring thanks to higher thread flanks

Smooth thread start ensures optimised recessing and biting of the screw

Reduced splitting effect due to displacement effect of the dome-shaped milling elements in the tip

Friction-reduced thread rotation allows reduction of the screw-in force to be applied

Notice

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

Do not use the screw in applications with direct exposure to the elements or in humid rooms with atmospheres containing chlorine gas. If used outdoors and in rooms that are constantly exposed to high humidity, please use ASSY 4 A2 PH stainless steel screws

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

Application

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, up to ∅ 4 mm A2K 5 µm, from ∅ 4.5 mm A3K 8 µm layer thickness

Suitable for use in utilisation class 1 (interior) and from a ∅ > 4 mm in utilisation class 2 (covered outdoor area) according to EN 1995-1-1:2010-12 + DIN SPEC 1052-100:2013-08

For screws from ∅ 4.5 mm with zinc layer thickness 8 µm with Cr(III) passivation, the requirement of classification T2/C2 is fulfilled in accordance with prEN 14592:2017 (D)

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

ASSY screws are approved for quasi-static loads

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

Technical information


Nominal diameter (d)	4 mm
Length (l)	12 mm
Head type	Pan head
Head diameter (d_h)	7.9 mm
Head height (k)	2.8 mm
Internal drive	RW20
Thread type	Wood screw thread
Thread design	Full thread
Thread form	Coarse thread
Thread length (lg)	10.5 mm
Core diameter	2.5 mm
Shape of tip	Tip with hilltop milling cutter
Angle of the tip	34 Degree
Material	Hardened steel
Surface	Zinc plated
Colour	Silver
Max. screw-in angle	90 Degree
Min. screw-in angle	45 Degree
Product weight (per item)	1.228 g
Suitable for use in the following materials	Board ply wood (BSP), Hardwood, LVL
Area of application	Universal, Furniture, Metal plate, wood, Fitting
RoHS-compliant	Yes

Documents

Product information

Datasheets (0)

Certificates/ Documents (0)

Accessory

Additional accessory:

Product

Description

Quantity

Price
/PU

RW® bit

BIT-RW20-LUMINOUSORANGE-1/4ZO-L25MM

Art.-no. 061470 20

The perfect bit for the new generation of ASSY screws

RW® bit

BIT-RW20-LUMINOUSORANGE-1/4ZO-L50MM

Art.-no. 061471 20

The perfect bit for the new generation of ASSY screws

x 5 pcs

RW® bit

BIT-RW20-LUMINOUSORANGE-1/4ZO-L120MM

Art.-no. 061472 20

The perfect bit for the new generation of ASSY screws

x 5 pcs

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