Protek® 656 Clamp by Alexandra Security is a steel perimeter fencing system made from twin 6mm horizontal and single 5mm vertical welded wires, designed to resist cutting and climbing. Panels are joined with full-length clamp bars and vandal-resistant fixings, with heights from 1m to 3m and galvanised or powder-coated finishes.

  • Steel mesh security fence with twin-wire welded design

  • Harder to cut and climb due to twin-wire mesh and small apertures

  • Panels joined with full-length clamp bars for increased security

  • Vandal-resistant fixings

  • Heights from 1m to 3m in single panels

  • Galvanised finish for rust protection, powder coating optional

  • Matching gates and CAD drawings available

  • 15-year guarantee

Applications

  • Business parks

  • Commercial properties

  • Public sector buildings

  • Rural and urban perimeter security

  • Sites requiring anti-climb fencing

Specification

Nominal Fence Height (m)

Panel Size Height x Width (mm)

Post Centres (mm)

Overall Length of Post (mm)

Post Size (mm)

Ends/Inters (1 Clamp)

Corners (2 Clamps)

1.2

1,230 x 2,506

2,520

1,850

60 x 40

4

8

1.8

1,830 x 2,506

2,520

2,400

60 x 40

6

12

2.0

2,030 x 2,506

2,520

2,700

60 x 40

6

12

2.4

2,430 x 2,506

2,520

3,200

60 x 40

7

14

3.0

3,030 x 2,506

2,520

3,750

80 x 40

9

18

Materials

Steel mesh panels and posts

Finish

Galvanised to BS EN 10244-2:2001 class D

Optional polyester powder coating in green or black

Options and variations

Heights: 1.2m, 1.8m, 2.0m, 2.4m, 3.0m

Posts: dig-in or bolt-down

Panels can be inverted for flat top

Performance

Weld strength 75% of minimum tensile strength (540-690 N/m²)

Installation

Panels can be stepped to follow ground contours

Posts fixed with full-length clamp bars and vandal-resistant fixings

Bolt-down posts for concrete, dig-in posts for soil (postcrete mix available separately)

Product accreditations

Mesh panel wire to BS 4102

Post material to BS EN 10210-2:1997

Galvanised to BS EN 10346:2009

Warranty

15 years

Technical support

CAD drawings for design sign-off

Expert advice on fencing selection