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ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31 ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31 ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31 ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31 ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31 ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31 ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31 ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31 ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31
ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31 - 1
ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31 - 2
ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31 - 3
ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31 - 4
ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31 - 5
ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31 - 6
ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31 - 7
ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31 - 8
ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31 - 9

ASSY®plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head

ASSYplus 4 CS MDF steel zinc plated PT cs head RW
SCR-CS-DBIT-MDF-RW20-(A2K)-4,4X50/31
ASSYPLUS 4 CS MDF

Art.-no. 0178394550
EAN 4061975502780
All versions

Price for selected packaging unit
ASSY®plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head

Art.-no. 0178394550

Price for selected packaging unit
Quantity
PU
x 250 pcs

Exclusively for trade customers

Register now and access more than 125,000 products

Partial-thread screw with geometry and drill tip attuned to MDF for connection in MDF front faces of cabinet parts without predrilling, splitting or bulging

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, 1 bit for many screw diameters

  • Compatibility with previous AW drive


Screw fitting without gaps or bulging in MDF front surfaces


  • Optimisation and extension of the drill tip for screw fittings without gaps or bulging


Connection of MDF panels, hardwood or hard, engineered woods


For visually visible and plasterable wood-wood connections thanks to 90° head geometry with reduced head diameter



Maximum pull-out strength and minimum splitting effect


  • Thread attuned to MDF material

  • Optimum distribution of drilling chips through serrated screw core

  • Prevents pressing in the MDF material due to thin core diameter and extra high thread flanks
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. 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
Product information

Würth Catalogue

Datasheets(X)

Certificates/ Documents

 | 

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Application area

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 ∅ > 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 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

  • MDF partial-thread screws are ideal for connecting wooden plates in MDF. The specially tuned geometry and thread base form avoids pressing and splitting as much as possible. Due to the different MDF qualities, preliminary testing is required

Nominal diameter (d)

4.4 mm

Length (l)

50 mm

Thread length (lg) (lg)

31 mm

Screw-thread length with drill tip (b) (b)

36 mm

Head type

Countersunk head

Head diameter (dh)

7.7 mm

Head height (k)

2.5 mm

Internal drive

RW20

Thread type

Wood screw thread

Thread design

Partial thread

Design

With shaft

Thread form

Single start thread

Core diameter

2.3 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

MDF, Chipboard, Plywood

Area of application

MDF-Furniture

Approval

ETA-11/0190

Product weight (per item)

2.700 g

RoHS-compliant

Yes

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

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

The perfect bit for the new generation of ASSY screws
RW<SUP>®</SUP> bit
RW® bit

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

The perfect bit for the new generation of ASSY screws
x 5 pcs
RW<SUP>®</SUP> bit
RW® bit

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

The perfect bit for the new generation of ASSY screws
x 5 pcs
Universal holder E 6.3 (1/4") With quick-change chuck
Universal holder E 6.3 (1/4) With quick-change chuck

HOLD-BIT-QCCHUK-1/4INX1/4IN-L51MM

x 1 pcs
1/4-inch bit drill holder
1/4-inch bit drill holder

HOLD-BIT-QCCHUK-1/4IN-L60MM

ZEBRA
Quick-change holder, optimised for use of bit drills and bits (shape C 6.3, shape E 6.3 and double bits) with 1/4 inch hexagon drive
x 1 pcs
The packaging unit defines the number of articles in one packaging. In the catalog segment you can choose from different packaging units if a pop-up menu is displayed.

Just leave the field empty if you don't know the packaging unit when directly entering the article number in the shopping basket or when importing with Easy-/VarioScan. The packaging unit will be determined automatically.
The article number is made up of the following: VVVVAAABBB
VVVV = 4 digits for prefix number (please note that the first digit is currently always 0)
AAA = 3 digits for dimension part 1
BBB = 3 digits for dimension part 2

Example article number structures:
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:
VVVVAAABBB
005710 20 (1 space between the 10 and the 20)

Example 3: Flat washer with an internal diameter of 6 mm:
VVVVAAABBB
04076
Price per packaging unit (PU):
The displayed price is always in line with the displayed packaging, if the PU is 250 the price for 250 units, if the PU is 300 the price for 300 units.

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Price for 100 units
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The quantity shows the number of pieces or units of measure contained in the order or delivery for the respective article.
In contrast to sales packaging and secondary packaging, the disposal costs for chemical-technical products are shown separately. The breakdown of the individual costs can be found on the relevant products and also in the shopping cart, as well as in our General Terms and Conditions (GTC).

Art.-no.
Cust. Mat. No.

Hazardous Material

Product information

Würth Catalogue

Datasheets()

Datasheets ()

CAD data  | 

Certificates/ Documents

 | 

 | 

Technical information
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