PN Lock Bar

Window restrictor stay BUY NOW

For use on PVCu, timber or aluminium windows

PN Lock Bar is a surface mounted restrictor/stay designed for ease of fit for factory or retrofit installation PN Lock Bar is available with various brackets to suit many profiles.

Features & Benefits

  • Face mounted, factory fit or retrofit.
  • When window is open, window is securely restricted in three positions.
  • Can only be de-restricted when window is closed.
  • Designed to accommodate all sash opening angles.
  • Works on inward and outward opening sashes.
  • Retainer clip supplied.

Please note that it is the Duty-Holders responsibility to specify the appropriate restrictor for each situation.

PN Lock Bar

Product Code(White) Code (Chrome) 
PN Lock Bar 3850-0-05-30 3850-0-03-00
PN Lock Bar Slim Back Plate 0521-0-05-30 Discontinued
Angle Bracket LH 3851-0-05-30 3851-0-03-00
Angle Bracket RH 3852-0-05-30 3852-0-03-00
Flush Bracket LH 3853-0-05-30 3853-0-03-00
Flush Bracket RH 3854-0-05-30 3854-0-03-00
Flat Bracket long LH 0534-0-05-30 0534-0-03-00
Flat Bracket long RH 0535-0-05-30 Discontinued

Manufactured From

11mm steel rod (bar).

Pressed steel (bracket).

Recommended Screws

No.8 countersunk screws (for timber application, 4 clutch head screws are supplied per bar)


Tested in accordance with DD CEN/TS 13126-5:2004 and BS 6375 Part 2:2004.


Blue chromate or white paint.

Brackets are handed and the variations cover most window profiles.

Other finishes are available by special order.

More information / 01206 713801