NBS Source
Bullet-Proof Security Steel Door


FB4 bullet-proof single leaf security steel door, double-skinned, 64 mm thick.

Tested in accordance with:

  • DIN EN1522 achieving Class FB4.
  • EN1627/30 rated security level RC4.
  • DIN EN20140 rated Rw 45 dB.

Fixing applications:

  • Masonry (minimum 240 mm).
  • Concrete (minimum 140 mm).

General information

Uniclass 2015

Pr_30_59_24_52 Metal doorsetsPrimary


L20/480 Doorsets

L20/510 Strongroom door

L20/55 Doorsets

Specification data - Metal doorsets

Product Reference

dW 64-1

Colour/ Finish

Galvanized and prime coated grey white

Similar to RAL 9002.

Polyester powder coated, RAL

Optional, available in any RAL colour.


2 mm thick corner frame


2 mm counter frame

2 mm closed frame

2 mm single rebate 'block' frame



As drawing.

Not required


Various items of special equipment are available, consult manufacturer and insert requirements.

Standard product features

Door leaf:

  • Type: Double skinned.
  • Thickness: 64 mm.
  • Security bolts: One.
  • Core: Steel plate, mineral wool, gypsum board.
  • Sheet thickness: 1.5 mm.

Door frame:

2 mm thick corner frame with three-sided seal and bottom sill. Frame fixed with three screws each side.


  • Two, two-part KO hinges with ball bearings.
  • Secured hinge bolts.
  • Mortise lock prepared for profile cylinder.
  • Plastic handle set black - Handle pivoted on bearing with tumbler insert (Bb) and 1 Bb key.

Product Options


In accordance with DIN EN 1063 BR 4, glass thickness 49 mm with steel holding strips NS shatter proof on the inside.

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