Welcome to Würth Germany For trade customers only Contact +49 7940 15-2400
ASSY<SUP>®</SUP>plus 4 A2 CSMR universal screw A2 stainless steel plain, partial thread, countersunk milling head - SCR-CSMR-DBIT-A2-RW20-4,5X40/22 - 9
ASSY<SUP>®</SUP>plus 4 A2 CSMR universal screw A2 stainless steel plain, partial thread, countersunk milling head - SCR-CSMR-DBIT-A2-RW20-4,5X40/22 - 1
ASSY<SUP>®</SUP>plus 4 A2 CSMR universal screw A2 stainless steel plain, partial thread, countersunk milling head - SCR-CSMR-DBIT-A2-RW20-4,5X40/22 - 2

ASSY®plus 4 A2 CSMR universal screw A2 stainless steel plain, partial thread, countersunk milling head

ASSYplus 4 A2 CSMR sst A2 PT cs mill. head RW
SCR-CSMR-DBIT-A2-RW20-4,5X40/22
ASSYPLUS 4 A2 CSMR

Art.-no. 016634540
EAN 4061975504180
All versions

Produkt vergleichen
-,--
price per selected packing unit | Individual prices for customers after login

Show availability in Würth shop
Exclusively for trade customers

Register now and access more than 125,000 products

Report incorrect product information here

Universal partial thread screw made of high quality austenitic A2 stainless steel countersunk head with milling pockets. Suitable for or gap-free fastening close to edges without pre-drilling of wood-wood connections in outdoor areas constantly exposed to weathering.

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


Precise positioning and very clean drilling due to advanced centring drill tip


  • Positioning and drilling without chipping

  • Maximum drilling performance and precise drilling process through drilling cutting edges (similar to Forstner bits)

  • Precise positioning on hard surfaces without slipping thanks to centring pin

  • Quick screwing due to gentle start of thread


Easy countersinking in hardwood/softwood with high knot content as well as hard wood fibreboards


  • Very high milling performance due to milling ribs located at the countersunk head


Maximum reliability of the screw connection due to asymmetrical single thread


  • Optimal matching of drill tip and thread geometry

  • Excellent anchoring in wood due to asymmetrical arrangement of thread flanks


Stainless mounting for accessible wood connections in outdoor areas exposed to weathering


  • Made of austenitic, non-magnetic and non-rusting A2 stainless steel

  • Can be used in rural or urban environments or industrial atmospheres without significant exposure to chlorides or SO2

  • With friction-reducing slide coating for easy screwing
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

  • 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.

Application area

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.



Can be used for outdoor applications and utilisation class 3

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

  • ASSY screws are approved for quasi-static loads

  • Partial-thread screws are ideal for connecting wooden components. To achieve optimum assembly of the components, the components to be fixed must not be thicker than the length of the shank

  • For metal-wood connections, ASSY screws with a countersunk head or countersunk head with milling pockets are preferable to countersunk head screws with milling ribs

Nominal diameter (d)

4.5 mm

Length (l)

40 mm

Thread length (lg) (lg)

22 mm

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

26 mm

Head type

Countersunk head

Head details

Milling ribs

Head diameter (dh)

9 mm

Head height (k)

4.3 mm

Internal drive

RW20

Thread type

Wood screw thread

Thread design

Partial thread

Design

With shaft

Thread form

Single start thread

Core diameter

3 mm

Shape of tip

Drilling tip

Material

Stainless steel A2

Surface

Plain

Max. screw-in angle

90 Degree

Min. screw-in angle

0 Degree

Suitable for use in the following materials

Board ply wood (BSP), Wood, Derived timber product, Hardwood, LVL, Softwood, Construction timber (KVH), OSB, Chipboard, Solid wood panel (SWP)

Area of application

Outdoors, Balcony, Element construction, Façades, Wet areas, Timber construction, Timber panel construction, Structural woodwork, Play equipment, Board walk, Terrace, Fence

Approval

ETA-11/0190

Product weight (per item)

3.374 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
x 10 pcs
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.

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).

Services und Systeme rund ums Produkt

Bestellen Sie Nachschub in Lichtgeschwindigkeit!Mit den smarten ORSY Scannern ist die Bestellung von Material und Kleinteilen kinderleicht.Mehr erfahren
Benötigen Sie die passenden CAD-Daten?In unserer CAD-Datenbank finden Sie hochwertige Produktdokumente und CAD-Daten kostenfrei und rund um die Uhr.Mehr erfahren

Art.-no.
Cust. Mat. No.

Hazardous Material

Product information

Würth Catalogue

Datasheets()

Datasheets ()

CAD data  | 

Certificates/ Documents

 | 

 | 

Technical information
Show all product details