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ASSY<SUP>®</SUP>plus 4 A4 SRCS SPECIAL 60° head A4 st. steel plain, partial thread, raised countersunk head 60° - SCR-SRCS-DBIT-WO-RW20-A4-4X40/21 - 8
ASSY<SUP>®</SUP>plus 4 A4 SRCS SPECIAL 60° head A4 st. steel plain, partial thread, raised countersunk head 60° - SCR-SRCS-DBIT-WO-RW20-A4-4X40/21 - 1
ASSY<SUP>®</SUP>plus 4 A4 SRCS SPECIAL 60° head A4 st. steel plain, partial thread, raised countersunk head 60° - SCR-SRCS-DBIT-WO-RW20-A4-4X40/21 - 2

ASSY®plus 4 A4 SRCS SPECIAL 60° head A4 st. steel plain, partial thread, raised countersunk head 60°

ASSYplus 4 A4 SRCS SPECIAL A4 PT s r cs hd 60º RW
SCR-SRCS-DBIT-WO-RW20-A4-4X40/21
ASSYPLUS 4 A4 SRCS SPEC

Art.-no. 0169824040
EAN 4062856220038
All versions

Price for selected packaging unit
ASSY®plus 4 A4 SRCS SPECIAL 60° head A4 st. steel plain, partial thread, raised countersunk head 60°

Art.-no. 0169824040

Price for selected packaging unit
Quantity
PU
x 500 pcs

Exclusively for trade customers

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Special partial-thread screw made of high-quality, austenitic A4 stainless steel with small, raised countersunk head and milling ribs for visually appealing fastening close to edges, without pre-drilling, of wooden façades, skirting boards, fences etc. 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 bit)

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

  • Quick screwing due to gentle start of thread


Easy countersinking in softwoods and hardwoods


  • Visually appealing connections due to lens-shaped, rounded head

  • High milling power and chip collection for clean countersinking of the head in softwood/hardwood

  • For universal use in wood and metal connections due to milling pockets integrated in the countersunk head

  • Can be combined with 90° metal countersink


Maximum reliability of the screw connection


  • Asymmetrical single thread

  • Through 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 A4 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. Dimensioning the ASSY screws can be carried out in the Würth timber construction software from a ∅ 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 bit tip, self-clearing groove etc.), such as the ASSY D screws with countersunk head or pan head

Application area

For wood to wood connections designed to pull together


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

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

  • 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

  • ASSY screws are approved for quasi-static loads

  • ASSY stainless steel screws can be used to attach hard wood decking and flooring. Pre-drilling is recommended for tropical timber with high bulk density

Nominal diameter (d)

4 mm

Length (l)

40 mm

Thread length (lg) (lg)

21 mm

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

34 mm

Head type

Small raised countersunk head 60 degree

Head details

Milling ribs

Head diameter (dh)

7 mm

Head height (k)

4.2 mm

Internal drive

RW20

Thread type

Wood screw thread

Thread design

Partial thread

Design

With shaft

Thread form

Single start thread

Core diameter

2.65 mm

Shape of tip

Drilling tip

Material

Stainless steel A4

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)

2.610 g

RoHS-compliant

Yes

Product information

Datasheets (0)

Certificates/ Documents (0)

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
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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)
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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
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Art.-no.
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