ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-3,9X40/27

ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-3,9X40/27 - 1

ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-3,9X40/27 - 2

ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-3,9X40/27 - 3

ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-3,9X40/27 - 4

ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-3,9X40/27 - 5

ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-3,9X40/27 - 6

ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-3,9X40/27 - 7

ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-3,9X40/27 - 8

ASSY<SUP>®</SUP>plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head - SCR-CS-DBIT-MDF-RW20-(A2K)-3,9X40/27 - 9

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

Name: ASSY ® plus 4 CS MDF universal screw Hardened zinc plated steel partial thread countersunk head
Brand: Würth
SKU: 0178394040

ASSYplus 4 CS MDF steel zinc plated PT cs head RW
SCR-CS-DBIT-MDF-RW20-(A2K)-3,9X40/27
ASSYPLUS 4 CS MDF

Art.-no. 0178394040

EAN 4061975502728

All versions

Similar products

Prices for customers after login

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

Art.-no. 0178394040

Prices for customers after login

Quantity

x 500 pcs

Exclusively for trade customers

Login/Register
Call customer service:

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

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 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)	3.9 mm
Length (l)	40 mm
Thread length (lg) (l_g)	27 mm
Screw-thread length with drill tip (b) (b)	32 mm
Head type	Countersunk head
Head diameter (d_h)	6.7 mm
Head height (k)	2.1 mm
Internal drive	RW20
Thread type	Wood screw thread
Thread design	Partial thread
Design	With shaft
Thread form	Single start thread
Core diameter	2 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)	1.658 g
RoHS-compliant	Yes

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

x 10 pcs

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

Universal holder E 6.3 (1/4) With quick-change chuck

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

Art.-no. 0614176711

x 1 pcs

1/4-inch bit drill holder

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

ZEBRA

Art.-no. 0614176760

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

Cordless drill driver BS 12-A

DRLDRIV-CORDL-(BS 12-A)-LIION-2X2.0AH

MASTER

Art.-no. 57001112

Extremely compact, powerful 12 V lithium-ion drill driver. Ideal for all light-duty drilling and screwing applications

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.

Price with price key representation (PSL):
The price always applies to a quantity ruled through the price key:
Price for 1 unit
Price for 100 units
Price for 1000 units

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).