Alexandra Protek 358 Clamp

The Protek 358 Prison mesh flat panel system is designed to provide a very high level of security that is almost impossible to climb, with the narrow apertures of the mesh preventing any intruder gaining a foothold, whilst retaining a good level of visibility and an aesthetically pleasing appearance. This system is used extensively by the Ministry of Defence around high security sites.

  • A photo of an Alexandra Protek 358 Clamp Fence

Protek 358 Clamp Specification


Posts, Clips & Fixings

The posts and full length clamp bars that Knight Fencing offers provide a fixing system which secures the panels but allows for variations. The system is easy to install and allows the panels to be stepped, helping the fence line to follow the contours of the ground. With the vandal resistant security fixings this post and clamp system.


  • Threaded insert posts available
  • System is available in a galvanised finish using galfan panels
  • Refer to Anti-Climb section on pages 114-119 of our brochure for more options for this product
  • Metal clips


Product and Finish Standards

  • Mesh panel wire manufactured to BS 4102 and galvanised to BS EN 10244-2:2001 class D, weld strength is 75% of the minimum tensile strength of the wire (tensile range 540-690 N/m2)
  • Post material manufactured to BS EN 10210-2:1997 and galvanised to BS EN 10346:2009
  • Panels & Posts are powder coated to BS EN 13438:2005 (min 100 micron)

Technical Specification for Protek 358 Clamp

*Subject to change
Fence height
Panel Size WxH (mm)Overall Length of PostPost Size (mm)No. Fixings: Ends / Inters (1 Clamp)No. Fixings: Corners (2 Clamps)
1.21274 x 2519180060 x 60510
1.81833 x 2519245060 x 60714
2.02011 x 2519260060 x 60714
2.12138 x 2519280060 x 60816
2.42442 x 2519310060 x 60918
2.72704 x 2519350060 x 601020
3.03001 x 2519380080 x 801122
3.33306 x 2519380080 x 801122
4.24208 x 25195500100 x 501530
5.25211 x 25196800120 x 601938

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