ASSY<SUP>®</SUP> 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head - SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21

ASSY<SUP>®</SUP> 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head - SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21 - 1

ASSY<SUP>®</SUP> 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head - SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21 - 2

ASSY<SUP>®</SUP> 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head - SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21 - 3

ASSY<SUP>®</SUP> 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head - SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21 - 4

ASSY<SUP>®</SUP> 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head - SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21 - 5

ASSY<SUP>®</SUP> 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head - SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21 - 6

ASSY<SUP>®</SUP> 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head - SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21 - 7

ASSY<SUP>®</SUP> 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head - SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21 - 8

ASSY<SUP>®</SUP> 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head - SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21 - 9

ASSY<SUP>®</SUP> 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head - SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21 - 10

ASSY<SUP>®</SUP> 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head - SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21 - 11

ASSY<SUP>®</SUP> 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head - SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21 - 12

ASSY<SUP>®</SUP> 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head - SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21 - 13

ASSY<SUP>®</SUP> 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head - SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21 - 14

ASSY<SUP>®</SUP> 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head - SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21 - 15

ASSY<SUP>®</SUP> 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head - SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21 - 16

ASSY<SUP>®</SUP> 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head - SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21 - 17

ASSY^® 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head

Name: ASSY ® 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head
Brand: Würth
SKU: 0190404550

ASSY 4 P CSMP steel zinc plated under-head thr. RW
SCR-CS-MPK-P-RW20-(A3K)-4,5X50/21
ASSY 4 P CSMP

Art.-no. 0190404550

EAN 4061975680648

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ASSY^® 4 P CSMP universal screw Steel zinc plated partial thread with underhead thread milling pockets head

Art.-no. 0190404550

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x 250 pcs

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Universal partial-thread screw with underhead thread with high tightening effect for fast, gap-free fastening of wood-wood connections in furniture construction, interior construction or wood construction 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

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

Low gap 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 or A4 stainless steel screws and, if atmosphere contains chlorine, HCR 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

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 connecting two wooden elements without assembly gap

The underhead thread beneath the head with reduced thread pitch and enlarged external diameter allows two wooden elements to be connected without assembly gap. A flush connection of the screw head with the material surface is possible.

For wood-wood connections designed to pull together

The partial thread starting immediately below the shank allows for wood-wood connections designed to pull together. The screw thread is positioned entirely in the lower component once screwed in.

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

ASSY screws are approved for quasi-static loads

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

Partial-thread cabinet screws are ideal for joining light wood materials such as chipboard. To achieve optimum component assembly, the component thickness to be fixed must be greater than the shaft length


Nominal diameter (d)	4.5 mm
Nominal diameter 2	5.0 mm
Length (l)	50 mm
Thread length (lg)	21 mm
Head type	Countersunk milling pocket head
Head details	Milling pockets
Head diameter (d_h)	8.9 mm
Head height (k)	2.8 mm
Internal drive	RW20
Thread type	Wood screw thread
Thread design	Partial thread with underhead thread
Shaft length	16.0 mm
Thread form	Coarse thread
Core diameter	2.85 mm
Core diameter of head thread	2.85 mm
Shape of tip	Tip with hilltop milling cutter
Angle of the tip	28 Degree
Material	Hardened steel
Surface	Zinc plated
Colour	Silver
Min./max. screw-in angle	0-90 Degree
Suitable for use in the following materials	Board ply wood (BSP), Hardwood, LVL, 3 layer board
Area of application	Furniture, Press glueing, Board doubling, Body, Casing, Interior fitting, Timber construction, Dowel
Suitable machines	Würth ABS 12-E, Würth BS 12-A Power, Würth BS 14-A Combi
Screw requiring approval	Yes
Approval	ETA-11/0190
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

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

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