ASSY^®plus 4 A2 CH TERRACE terrace construction screw A2 plain stainless steel partial thread with underhead thread cylinder head

Name: ASSY ® plus 4 A2 CH TERRACE terrace construction screw A2 plain stainless steel partial thread with underhead thread cylinder head
Brand: Würth
SKU: 0166825570

ASSYplus 4 A2 CH terrace A2 PT cylinder head RW
SCR-CYLHD-TERRACE-DBIT-A2-RW20-5,5X70
ASSYPLUS 4 A2 CH TERRACE

Art.-no. 0166825570

EAN 4061975504692

All versions

Specification

Special partial thread screw with grooved shank made of high quality austenitic A2 stainless steel with small cheese head and underhead thread. Provides visually appealing fastening, close to edges without pre-drilling of terrace floorboards, wooden facades, skirting boards, fences etc. Suitable for 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

Unobtrusive mounting of wooden components

Small head diameter for unobtrusive mounting

Low splitting effect when countersinking the screw 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

Application area

For the fixed connection of two wooden elements

The underhead thread beneath the head with even thread pitch and equal external diameter enables two wooden elements to be permanently connected in the assembled state. Any creaking caused by the drying and swelling of the wooden components is excluded. Integrated shaft grooves improve pulling together.

For wood-wood connections designed to pull together

A wood-wood connection designed to pull together is possible owing to partial thread starting immediately after the shank. The thread in this case is positioned entirely in the lower second component.

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 hardwood terraces and flooring. Pre-drilling is recommended for tropical timber with high bulk density

Technical information


Nominal diameter (d)	5.5 mm
Length (l)	70 mm
Thread length (lg) (l_g)	23 mm
Screw-thread length with drill tip (b) (b)	27.5 mm
Head type	Socket head
Head details	Under head thread
Head diameter (d_h)	6.8 mm
Head height (k)	2.3 mm
Internal drive	RW20
Thread type	Wood screw thread
Thread design	Partial thread with underhead thread
Design	With shaft
Thread form	Single start thread
Core diameter	3.6 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
Area of application	Façades, Wet areas, Structural woodwork, Terrace, Fence
Approval	ETA-11/0190
Product weight (per item)	7.192 g
RoHS-compliant	Yes

Documents

Product information

Würth Catalogue (2)

Flip Book

Catalogue page as PDF 1

Datasheets (0)

Certificates/ Documents (4)

Approval/Assessment 1

Approval/Assessment 2

Approval/Assessment 3

Approval/Assessment 4

CAD data

Click here for the complete CAD library.

Accessory

Additional accessory:

Product

Description

Quantity

Price
/PU

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

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

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