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ASSY® 3.0 SK timber screw

ASSY 3.0 SK steel zinc plated partial thread AW
SCR-SK-WO-AW30-(A3K)-5X50/30
ASSY 3.0 SK

Art.-no. 018400550
EAN 4058794658644

Prices for customers after login
ASSY® 3.0 SK timber screw

Art.-no. 018400550

Prices for customers after login
Quantity
PU
x 100 pcs

Exclusively for trade customers

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The ASSY 3.0 SK with a large washer head is especially suitable for staircase construction/woodworking and carpentry. For screw connections in staircase construction, modular construction, timber and passive house construction.

Hardened steel, zinc-plated, blue passivated, partial thread, large washer head, AW drive, mating thread



Connects the wood instead of splitting it


Substrates:


Solid wood (coniferous wood, ash, beech, oak), laminated beams, cross laminated timber (CLT), timber veneer (coniferous wood or BauBuche), OSB and chipboard.



Large washer head


  • Very high penetration resistance or consolidation

AW drive – more power


  • Optimum transmission of forces

  • Very good snug fit

  • Fast location

  • Screw locates securely

  • Almost no unscrewing of the bit

  • No wobbling

  • No damage to surface coating of screw

  • Only 3 bit sizes for the diameters 5.0 to 12.0 mm

End mill – the "auxiliary motor" for lower force


  • Reduction of the screw-in and head countersinking torque by around 20%, especially with long screws

  • Protection of screw-in tools

  • From diameter = 5 mm, L = 70 mm

Asymmetric coarse thread – faster speed


  • Low screw-in torque

  • High over-turning force

  • Faster screwing than conventional chipboard screws – reduces processing time by 30%

Tip


  • Very precise positioning thanks to the 34° tip

Mating thread – less tendency of the wood to split, very few blow-outs


  • Minimal splitting forces, especially when screwing in at edges

  • Reduction of the screw-in torque

  • Blow-outs are avoided to a high degree thanks to the punching effect of the ring thread
Notice

Chipboard screws are optimised for use in wooden materials. Use in plastic anchors may cause a reduction in the load-bearing capacity. Therefore, we recommend only using screws without optimised thread tips (drill tip, mating thread, ring thread, serrated edge, self-clearing groove, etc.) in plastic anchors, e.g. Würth ASSY D, prefix number 0151 (countersunk head) and prefix number 0153 (pan head).



Available work documents:


Timber dimensioning software, load tables and detailed processing instructions can be found on the service page www.wuerth.de/assy.

ETA-11/0190

When using these screws, please follow ETA-11/0190 specifications.

Product information

Datasheets(X)

Certificates/ Documents

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Application area
  • For screwing in secondary wooden components with greater pressure - universal use

  • Constructive end grain screw connection
Instructions

Screw-in angle 0° to 90°. For coniferous wood or wood-based materials made from softwood, the screw connection is made without pre-drilling. To reduce the edge distances, a pre-drilled hole can be made according to the core diameter. When screwing into hardwood, pre-drill according to ETA-11/0190.

Nominal diameter (d)

5 mm

Length (l)

50 mm

Thread length (lg)

30 mm

Head type

Round washer head

Head diameter (dh)

12 mm

Head height (k)

3 mm

Internal drive

AW30

Thread type

Wood screw thread

Thread design

Partial thread

Thread form

Coarse thread

Core diameter

3.2 mm

Shape of tip

Tip with counter thread

Angle of the tip

28 Degree

Material

Hardened steel

Surface

Zinc plated

Colour

Silver

Max. screw-in angle

90 Degree

Min. screw-in angle

0 Degree

Suitable for use in the following materials

Wood
Derived timber product
Softwood
Board ply wood (BSP)
Hardwood
LVL

Area of application

Packaging
Structural woodwork
Element construction
Timber construction
Timber panel construction

Approval

ETA-11/0190

RoHS-compliant

Yes

Art.-no.
Cust. Mat. No.

Hazardous Material

Product information

Datasheets()

Datasheets ()

CAD data  | 

Certificates/ Documents

 | 

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Technical information