Product Prices Listed On Our Website Are Exclusive Of VAT

TECNI 2.5mm Vertical Balustrade Cable into Metal Posts - 160.225.002

Cable assembly manufactured in our UK factory.

Vertical balustrade infill cable for infill up to 1 metre. 

Both ends into metal posts. Posts must be tapped M6x1 standard metric thread minimum 3mm wall thickness of material.

Thinner material wall thickness (less than 3mm) will require rivet nut (riv nut) inserts to ensure a secure termination.

Supplied as individual cables. 

 Recommended maximum spacing between cables for safety applications is 80mm. 

 Please advise exact distance between inside faces of the balustrade at checkout and we will manufacture the assemblies to suit.

TECNI designed its Standard Vertical Wire Balustrading system with 2.5mm cable both for strength and aesthetic appeal. 

 The majority of the fitting sits inside the top and bottom wooden rails to minimise disruption of views. 

 Due to natural deflection of wire, TECNI recommends maximum hole spacings of 80mm between vertical wires. Maintenance free product manufactured in the UK from marine grade stainless cable and fittings.  
£5.97
QtyPrice (per unit)
1 - 9£5.97
10 - 99£5.68
100 - 999£5.38
1000 +£5.08
Product Code: 160.225.002

Applications & Advice

About the cable infill

TECNI® designed its Standard Vertical Wire Balustrading system with 2.5mm cable both for strength and aesthetic appeal with minimal maintenance. The majority of the fitting sits inside the top and bottom metal rails to minimise disruption of views.

 

Suitability and Compliance with Standards

Balustrade Cable Infill Loads: The balustrade cable infill correctly installed at maximum 80mm spacings between each cable have been tested to meet the loading requirements stated in BS 6399-1 Table 4 - Minimum horizontal imposed loads for parapets, barriers and balustrades, etc. A(i) and (ii), B(iii), (iv) and (v), C3(viii) and (ix). Cable infill: Cable infill is designed for a uniformly distributed load of 1.0 kN/m2  (220 pounds per square metre approximately) plus a point load of 0.5 kN (110 pounds approximately).

 

Fittings are for use with 2.5mm 7x7 marine grade stainless steel wire rope. These fittings are NOT suitable for use with 1x19 construction strand.  TECNI can only guarantee compliance with BS 6399-1 Table 4 sections stated above when all cable components are supplied from TECNI Ltd and manufactured by TECNI Ltd.  DIY cable infills cannot be guaranteed to meet the requirements of the standard without verification testing.

 

See Appendix A for more details

Components supplied in each cable length

TECNI PRODUCT CODE

DESCRIPTION

QTY PER ASSEMBLY

UOM

Material

603.000.025 CABLE-GP-SS-77-2.5

2.5mm 7x7 A4-AISI 316 Stainless Steel Cable MBL 359 kgs

1

metre

A4-AISI 316 Stainless Steel

160.020.006 STUD-SS-M6-20-BALUSTRADE

M6x20mm A4-AISI 316 Stainless Steel Balustrade Fitting with 2.7mm bore and 2 x flats

2

pcs

A4-AISI 316 Stainless Steel

100.305.020 FERRULE-CU-2

Code 2 Copper Ferrule

2

pcs

Annealed Copper

208.158.736 NUT-SS-M6-A4-DOME-DIN1587-3.2MM-HOLE

M6 A4-AISI 316 Stainless Steel Dome Nut DIN 1587 c/w 3.2mm Hole

2

pcs

A4-AISI 316 Stainless Steel

310.015.006 SCREW-BRASS-M6-15-HEX-INSERT (WOOD POSTS ONLY)

M6x15 CZ121 brass unheaded hex-drive screw in threaded insert for wood

2

pcs

Brass

 

TECNI Assembly Part 160.125.002 with each end for Wooden Posts

TECNI Assembly Part 160.225.002 with each end for Metal Posts

TECNI Assembly Part 160.225.002 with one end for Metal Posts and one end for Wooden Posts

 

TECNI Assembly Part 160.125.002 with each end for Wooden Posts

 

             

Typical End For Wooden Posts  






















Drill Sizes for Wood

 

For wood insert use a 10mm diameter wood drill for the brass insert.  Minimum Drill depth into wood = 22mm. This allows clearance for the stop ferrule at the end of the thread.



10mm Wood Drill Bit

 

Screw brass insert into the wood using a 6mm a/f Allen Key.

 

6mm Allen Key




Drill Sizes for Metal

 

For metal use a 5mm diameter drill and tap the metal M6x1 standard metric pitch.  Minimum wall thickness for direct thread tapping is 3mm otherwise use M6 rivnuts in thinner box section or tube.

 

 

5mm HSS Metal Drill Bit



M6x1 Tap

 

Installation tools required

1 x Drill

* 1 x 6mm Allen Key

* 1 x 10mm Drill Bit (10mm to 10.8mm pilot hole - pilot hole dimensions for reference purposes only.)

1 x 4mm Spanner to tension balustrade fitting into post

1 x 10mm Spanner to tighten and lock off the dome nut

** 1 x TECNI Crimping Tool for Code 1, 1.5, 2 & 2.5 Aluminium & Copper Ferrules - 160.100.125

* * 1 x  TECNI® 4mm (5/32") Wire Rope and Cable Cutter - 103.000.004

* Only required for brass wood insert

* * Only required for optional DIY assembly of the cables on-site

 

Installation Options

The TECNI vertical balustrade infill cable can be custom made on site using our TECNI crimp tool (DIY cable infills cannot be guaranteed to meet the requirements of the BS 6399-1 Table 4 Minimum Horizontal imposed loads for parapets, barriers and balustrades, etc. standard without verification testing after installation).  Alternatively the cable assemblies can be supplied ready assembled from our factory for installation into wooden or metal posts.  For installations that require significant quantities of cable infill, TECNI recommends that the cables are supplied ready assembled from our factory.

 

FAQS

 

What measurement do I need to give to get cable assemblies manufactured?

Please measure the inside faces of the top and bottom rail that you want to infill with the cables - see Figure 1 below.  For DIY cables take this measurement and cut the cables to 40mm longer. Leave 1mm of dead cable out of the end of the ferrule (crimp) at each end.  This will give the optimum measurement for adjustment and capping off the exposed thread with the dome nut.

How much tension is sufficient?

The infill cables are designed for a maximum infill opening height of 1 metre.  Tension the cables to ensure that the gap between two cables cannot be deflected to more than 95mm.  This will compensate for any constructional stretch over time that could increase the deflection to the 100mm allowable limit.  There is no need to tension the cables more than this.

 

What are the maximum spacings allowed between cables?

Due to natural deflection of wire, TECNI recommends maximum spacings of 80mm between vertical wires.

 

For installation into wooden posts, use the brass wood insert supplied.  Drill a 10mm pilot hole a minimum of 22mm depth and screw the insert into the wood using a 6mm allen key until the top of the insert ifs flush with the top of the rail.  The additional drill depth is to allow for clearance of the stop ferrule above the threaded terminal.

 

For installation into hollow section metal posts ensure that there is sufficient M6x1 female metric thread to engage as much thread as possible but at least three full threads.  If this cannot be achieved then you should use an M6 rivnut in compatible material for the post i.e. brass or stainless for stainless posts or zinc plated for galvanised posts.

 

How much tension is in each cable?

When tensioned to allow a maximum deflection of 95mm between cables at the central point there is approximately 70 kgf (0.68 kN) to 80 kgf (0.78 kN) in each cable.

 

How strong is each cable?

Each TECNI factory manufactured assembly has a tensile strength of approximately 230 kgf (2.25kN). The DIY version of the cable assembled in accordance with our instructions and using the TECNI crimp tool has a tensile strength of approximately 150 kgf (1.47kN).

 

Will the cables stretch?

There will be minimal constructional stretch in each cable but this will not produce a noticeable slackening of the cables in lengths up to 1 metre.

 

Long term maintenance

All the components are manufactured from highly corrosion resistant materials.

Maintenance is minimal. Simply wash with soap and water if necessary and if required, the cables can easily be re-tensioned in just a few minutes without specialist tooling.

 

What is the maximum thread depth that can go into an M6 dome nut?

9mm



Appendix A

Extract from BS 6399-1 Table 4

Minimum Horizontal imposed loads for parapets, barriers and balustrades, etc.

 

Type of occupancy for part of the building or structure

Examples of specific use

Horizontal uniformly distributed line load (kN/m)

A uniformly distributed load applied to the infill (kN/m2)

A point load applied to part of the infill (kN)

A Domestic and residential activities

(i) All areas within or serving exclusively one [A1] single family [A1] dwelling including stairs, landings, etc but excluding external balconies and edges of roofs (see C3 ix)

0.36

0.5

0.25

 

(ii) Other residential, (but also see C)

0.74

1.0

0.5

     

B and E Offices and work areas not included elsewhere including storage areas

(iii) Light access stairs and gangways not more than 600mm wide

0.22

N/A

N/A

 

(iv) Light pedestrian traffic routes in industrial and storage buildings except designated escape routes

0.36

0.5

0.25

 

(v) Areas not susceptible to overcrowding in office and institutional buildings also industrial and storage buildings except as given above

0.74

1.0

0.5

     

C3 Areas without obstacles for moving people and not susceptible to overcrowding

(viii) Stairs, landings, corridors, ramps

0.74

1.0

0.5

 

(ix) External balconies and edges of roofs. Footways and pavements within building curtilage adjacent to basement/sunken areas

0.74

1.0

0.5

Dimensions & Drawings

Please advise dimension "L" which is the distance between the inside faces of the top and bottom rails of the balustrade frame. Maximum internal length for this cable infill system is 1 metre. TECNI manufacture the cables to your measurement +40mm which is the optimum measurement for correct tensioning. 

A: 11.55mm

B: 7mm 

C: 14.52mm 

D: 10mm

Video