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LPS 1175 SR4 Doors


M2M4Bradbury's M2M4 is a high-security doorset, certified by the LPCB to LPS 1175 Security Rating 4.

The M2M4 range of steel doors offers single, leaf and a half, and double outward opening doorsets, and single inward opening doorsets.

M2M4 doors are suitable for all personnel, fire exit, access control and utility applications.

To achieve LPCB certification, the M2M4 security doors were subjected to an attack test, simulating experienced attempts of forced entry. Tools used in the SR4 testing include a disc grinder, felling axe, hole saw, jigsaw, sledgehammer, and plate shears.

The wide choice of available hardware and options enables M2M4 doors to be tailored to individual customer requirements.

These doors are also available with the added benefit of an FD240 fire rating, under the CERTIFIRE scheme, providing 240 minutes of fire resistance.

Offering Bradbury's highest level of security, the M2M4 door has never been successfully broken into.

Cert no. 312 13

Key Features

  • Single, double, and leaf and half outward opening doorsets, or single inward opening doorsets available.
  • Available with fixed side and/or over panels.
  • Certified by the LPCB to LPS 1175: Issue 7 Security Rating 4.
  • Optional CERTIFIRE fire rating up to 240 minutes.
  • 66mm door leaf construction, manufactured from 1.5mm THK Zintec steel.
  • 110mm single rebate frame, manufactured from 2.0mm THK Zintec steel.
  • 6no. hinges, c/w 9no. heavy duty steel hooked dog bolts to each leaf.
  • Full range of MICO Abryll single point locks, with a range of external access options available.
  • Heavy duty tower bolts fitted to passive leaf on double and leaf and half doorsets.

  • Vision panels and bladed louvre cartridges available in a variety of sizes and configurations.
  • Primed or polyester powder coated in a wide range of colours and finishes.
  • Available in a high-quality wood grain effect finish.
  • Optional Extra Life paint, offering up to 10 years’ anti-rust warranty.


Please click here to download the M2M4 specification.


Bradbury M2M4 SR4 Security Doors Images



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Bradbury Group Ltd,
6 Atkinsons Way,
Foxhills Industrial Estate,
North Lincolnshire
DN15 8QJ
United Kingdom

Tel: +44(0)1724 271999

Fax: +44(0)1724 271888