Konaktelcit
Fencing358

High Security Fence

358 anti-climb fence · 76.2 × 12.7 mm mesh aperture · Ø4 mm wire · powder-coated · 1000–3000 mm height

High Security Fence

358 high security fence panel that physically prevents climbing and defeats cutting tools through its 76.2 × 12.7 mm narrow aperture profile and Ø4 mm wire combination. The most reliable perimeter security solution from power stations, airports, and military installations to commercial complexes.

Quick Specs
Mesh Aperture76.2 × 12.7
  • Height
    1000–3000mm
Bulk QuoteWhatsAppDownload Datasheet
Quality & Certifications

Internationally accredited, certified manufacturing

  • ISO 9001:2015
    Quality Management System
  • ISO 14001:2015
    Environmental Management System
  • ISO 45001:2018
    Occupational Health & Safety Management System
  • CE
    CE Declaration of Conformity (EN 10223-4)
  • TSE
    Turkish Standards Compliance
76.2 × 12.7 mm Aperture. No Finger. No Cutting Tool.
01ENGINEERING

76.2 × 12.7 mm Aperture. No Finger. No Cutting Tool.

The security of the 358 fence is not coincidental, it is the product of a calculated geometry. The 76.2 × 12.7 mm narrow aperture physically prevents a finger or cutting tool from entering. The Ø4 mm high-tensile wire makes cutting with standard pliers near-impossible.

  • 76.2 × 12.7 mm anti-climb mesh geometry
  • Ø4.00 × 4.00 mm or Ø4.00 × 6.00 mm high-tensile wire
  • Every intersection spot-welded: rigid, deformation-free
  • Electrostatic powder coating: UV and corrosion resistance
Production Process

Integrated production from raw material to quality control

  1. 01

    Wire Sourcing

    Ø4.00 mm steel wires are produced from high-tensile steel to EN 10025 standard; tensile strength and hardness tests are applied at goods-in inspection.

  2. 02

    Straightening & Pitch Setting

    Wires are positioned on CNC straightening lines to the 76.2 × 12.7 mm aperture dimension; horizontal and vertical wire spacings are set to precise tolerances.

  3. 03

    Spot Welding

    Every intersection is secured by fusion welding on automatic spot welding machines; a weld joint tensile test is applied to every batch.

  4. 04

    Surface Pre-treatment

    Before powder coating, panels undergo acid pickling, phosphating, and chrome-free pre-coating; ensuring long-term paint adhesion.

  5. 05

    Electrostatic Powder Coating

    Panels are coated in an oven environment at 180–200 °C with electrostatic powder coating; UV resistance, scratch resistance, and long service life.

  6. 06

    Quality Control & Packaging

    Aperture tolerance, weld strength, coating thickness, and colour conformity are checked; panels are packaged with a test certificate.

Maximum Security Combination with Top Razor Wire
02DETERRENCE

Maximum Security Combination with Top Razor Wire

While the 358 panel forms a powerful barrier on its own, the addition of concertina razor wire on top takes the security level to its maximum. The international standard preferred at power stations, military installations, and airport perimeters.

  • Concertina or flat razor wire add-on option
  • Secure installation with dedicated bracket fitting
  • Visible deterrent effect: prevents attempts
  • Complementary gate and accessory systems
Use Cases

Engineered solutions for every sector

  • Energy & Infrastructure

    Perimeter security for critical infrastructure such as power plants, substations, gas stations and drinking-water facilities; minimises unauthorised access and the risk of sabotage.

  • Airports & Ports

    Security around aprons, runway perimeters and port areas; visibility through the line is preserved while climbing and cutting are physically prevented.

  • Military & Public Security

    Perimeter protection for military installations, surveillance centres and correctional facilities. It is the reference product where international high-security standards apply.

  • Industrial Zones

    Perimeter security for organised industrial zones and factory sites; strengthens night-time security and acts as a powerful deterrent against theft and trespass.

  • Commercial & Residential Complexes

    Security and appearance together on shopping centres, office campuses and premium residential developments; anthracite or black powder coating blends into contemporary architecture.

Reliable Solution from Critical Infrastructure to Commercial Complexes
03APPLICATION

Reliable Solution from Critical Infrastructure to Commercial Complexes

A wide application range spanning power stations, industrial facilities, sports complexes, and commercial sites through to residential projects. RAL colour options combine environment-compatible aesthetics with security.

  • Energy, industrial, public sector, and commercial projects
  • 1000–3000 mm height: suitable for every security level
  • 2010 / 2510 / 3010 mm standard panel widths
  • RAL 6005 / RAL 7016 / RAL 9005 powder coating
Dimensions & Configuration

Height, weight and recommended post spacing

Height (mm)Weight (kg/panel)Panel Width (mm)Recommended Post Spacing (mm)
100016.020102500
120019.025102500
150024.020102500
200032.025102500
240038.530102500
300048.030102500
Colour & Coating

Oven-cured electrostatic powder coating

  • RAL 6005#2a4d31
    Green
    Powder Coated
  • RAL 7016#293133
    Anthracite
    Powder Coated
  • RAL 9005#0a0a0a
    Black
    Powder Coated
Technical Specifications
Type358 anti-climb fence (Prison Mesh / KFS-358)
Aperture76.2 × 12.7 mm, resists climbing and cutting
Wire DiameterØ4.00 × 4.00 mm or Ø4.00 × 6.00 mm
Height1000 – 3000 mm (standard: 1000 / 1200 / 1500 / 2000 / 2400 / 3000 mm)
Panel Width2010 / 2510 / 3010 mm
CoatingGalvanised + polyester electrostatic powder coating: RAL 6005 green / RAL 7016 anthracite / RAL 9005 black
Detailed Description

What Is a High Security Fence (358)?

The high security fence is a specialist engineered product also known as "358" or "Prison Mesh". It takes its name from its defining characteristics: a 3" × 0.5" mesh aperture (76.2 × 12.7 mm) and 8-gauge (~Ø4 mm) wire. These dimensions are chosen deliberately: too narrow to insert a finger, too small to admit a wire cutter, and too narrow to form a foot or hand hold.

Security Value of the Mesh Geometry

Compared with the 50–200 mm mesh aperture of standard panel fences, the 76.2 × 12.7 mm aperture of the 358 provides three critical advantages:

  • Anti-climb: The narrow horizontal aperture does not allow foot or hand holds to form.
  • Anti-cut: No cutting tool (pliers, chisel) can fit into the aperture; the Ø4 mm wire provides a thick cutting-resistance.
  • Visual permeability: Despite the dense wire mesh, inside-to-outside visibility is maintained with no blind spots.

Technical Specifications

  • Mesh Aperture: 76.2 × 12.7 mm
  • Wire Diameter: Ø4.00 × 4.00 mm or Ø4.00 × 6.00 mm (heavier horizontal wire option)
  • Panel Height: 1000 / 1200 / 1500 / 2000 / 2400 / 3000 mm
  • Panel Width: 2010 / 2510 / 3010 mm
  • Coating: Galvanised + Polyester Electrostatic Powder Coating; RAL 6005 Green, RAL 7016 Anthracite, RAL 9005 Black, or custom RAL

Applications

  • Power station, substation, and critical infrastructure perimeter security
  • Airport perimeter security and apron boundaries
  • Military installations, prisons, and detention centre perimeters
  • OIZ and industrial zone perimeter security
  • Commercial and residential complex high security perimeters
  • Sports facilities, museums, and public building boundaries

Additional Security Options

In addition to the standard 358 fence panel, concertina razor wire or flat razor wire can be fitted to the top section; this combination maximises the security level. Gate systems, posts, and installation fittings can be supplied as complementary items.

For project-based technical consultancy and large-area perimeter security projects, please share your site conditions, perimeter length, and security requirements; our team will provide a technical solution and price within the day.

Bulk Quote

High Security Fence

WhatsAppBulk Quote

Product Code

PRD-0010

Fencing

MANUFACTURER · FACTORY

High Security Fence Manufacturer

High Security Fence is manufactured directly by Konak Tel Çit at its factory in Aksaray; not outsourced, but produced in house from start to finish. The tight 358 mesh (76.2 × 12.7 mm) is produced with precision spot welding; this anti-climb panel resists hand and tool access and is powder-coated.

Quality assurance: production certified to ISO 9001, ISO 14001, ISO 45001 and CE; every batch is checked for mesh dimensions, weld strength and coating.

Manufacturer Profile

Integrated factory production in Aksaray since 1972

Founded
1972
Production Sites
2
Export Reach
80+ Countries
Annual Capacity
60,000 tons
Covered Area
20,000 m²
Quality
ISO · CE · TSE
Logistics & Shipping

Nationwide shipping in Türkiye and exports to 80+ countries

  • Panels per Pallet
    20
  • Pallets per Container
    20
  • Lead Time (days)
    7–14
  • Exports
    80+ countries
SSS

Frequently Asked Questions

6 questions · technical, installation and ordering details

The 76.2 × 12.7 mm mesh aperture does not permit a finger or cutting tool to enter; the Ø4 mm wire is resistant to cutting with standard pliers or a chisel. The combination of these two characteristics makes climbing and fence-cutting attempts physically near-impossible. It is therefore classified in international standards under the 'anti-climb / anti-cut' category.
1000–1500 mm is sufficient for residential, commercial, and internal sports facility boundary divisions. 2000–2400 mm is the standard choice for industrial facilities, OIZs, and high-risk commercial perimeters. 3000 mm is recommended for maximum-security applications such as power stations, military installations, and prisons. When concertina razor wire is added to the top section, the effective height increases further.
Yes. Single or double rows of concertina razor wire or flat razor wire can be fitted to the 358 panel using a dedicated bracket fitting. This combination is standard practice in international high security projects. You can view our Razor Wire / Barbed Wire options on the product page.
Standard colours are RAL 6005 Green, RAL 7016 Anthracite, and RAL 9005 Black. A custom RAL colour can also be applied according to project requirements. Share the colour code and scope and we will respond with a price within the day.
Yes. Single- and double-leaf steel gates compatible with 358 panels, posts, installation fittings, and top razor wire brackets are all available as a complete supply. For a full project quotation, please share the perimeter length, number of gates, and clear opening width.
Technical consultancy, drawings, and installation team coordination are provided for large-scale perimeter security projects. Share the site conditions, security requirement, and project timeline and our experienced team will prepare a bespoke solution.
Related Products

Fencing

Our Products
Bulk QuoteWhatsApp