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

ASSY 4 PH steel zinc ptd. full thread pan head RW
SCR-PANHD-WO-RW20-(A2K)-3,5X25/22
ASSY 4 PH

Art.-no. 0153735025
EAN 4061975605566

Price for selected packaging unit
ASSY® 4 PH fittings screw Steel zinc plated full thread pan head

Art.-no. 0153735025

Price for selected packaging unit
Quantity
PU
x 1000 pcs

Exclusively for trade customers

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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
Product information

Datasheets(X)

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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

Nominal diameter (d)

3.5 mm

Length (l)

25 mm

Head type

Pan head

Head diameter (dh)

7 mm

Head height (k)

2.4 mm

Internal drive

RW20

Thread type

Wood screw thread

Thread design

Full thread

Thread form

Coarse thread

Thread length (lg)

22 mm

Core diameter

2.1 mm

Shape of tip

Tip with hilltop milling cutter

Angle of the tip

28 Degree

Material

Hardened steel

Surface

Zinc plated

Colour

Silver

Max. screw-in angle

90 Degree

Min. screw-in angle

0 Degree

Product weight (per item)

1.411 g

Suitable for use in the following materials

Wood
Derived timber product
Softwood
Board ply wood (BSP)
Hardwood
LVL

Area of application

Universal
Furniture
Metal plate, wood
Fitting

Approval

ETA-11/0190

RoHS-compliant

Yes

Additional accessory:
 
Product
Description
Quantity
PU
Price
/PU
RW® bit

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

The perfect bit for the new generation of ASSY screws
RW® bit

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

The perfect bit for the new generation of ASSY screws
x 5 pcs
RW® bit

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

The perfect bit for the new generation of ASSY screws
x 5 pcs
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Example 1: Screw with dimensions of 4x10 mm:
VVVVAAABBB
00574 10 (2 spaces between the 4 and the 10)

Example 2: Screw with dimensions of 10x20 mm:
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005710 20 (1 space between the 10 and the 20)

Example 3: Flat washer with an internal diameter of 6 mm:
VVVVAAABBB
04076
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Product information

Datasheets()

Datasheets ()

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Technical information