Saracen FM Window Lock Gearbox for UPVC Windows - 05058 or 05060

Price £8.00 (Inc. VAT)
£6.67 (Ex. VAT)
(58 reviews) Write a Review
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Saracen FM Window Lock Gearbox

The Saracen FM deadlock gearboxes are often found with the code 05060 or 05058 on the shootbolt extension sockets.

For Product video click here

Gearbox mechanism only. Shootbolt extension arms can be bought by clicking here

Deadlock mechanism systems consist of shootbolt bars and a unique central gearbox with a deadlock. The shootbolts fit into the the gearbox mechanism with a teeth fitting.

Available in backsets:

  • 20mm - those with 05060 printed on the extension socket
  • 22mm - those with 05058 printed on the extension socket


Available with latch size:

  • 9.5mm

  • 11.5mm


You can find the latch size on the end of the latch. See picture below:





 If you're not sure which lock you need for your windows then contact us on 01204 652211

Espag Lock Backset Measuring Guide







To Measure the backset on your window lock you need to measure from the middle of the spindle hole to the front of the face plate. Take a look at the picture below and the red arrows show you where to measure.


The holes that the Bolts go through are a set distance and are the same on ALL window locks (43mm).



58 Reviews Hide Reviews Show Reviews

  • 4

    Posted by A Richardson on Oct 31, 2019

    Two arrived okay, I have yet to install them, however the action on one feels really good the other one feels okay.

  • 5
    Window lock gearbox

    Posted by Bernard Wilkins on Oct 21, 2019

    This item was very easy to find via the internet and clear information was provided on the H&H webpage so that we could identify the exact model required. The goods arrived very promptly within a couple of days of placing the order. They have now been fitted and we are very pleased with the quality, price and service.

  • 5
    Does the job

    Posted by George on Oct 08, 2019

    Easy to fit and fits perfectly and also easy to operate

  • 5
    Product very good

    Posted by G Chalstrey on Sep 26, 2019

    Thank you for your speedy service

  • 5
    Window lock gearbox

    Posted by Ken on Sep 16, 2019

    Good quality & delivered in 24 hrs

  • 5
    Window lock

    Posted by Phil poole on Sep 09, 2019

    Very good replacement lock also very good service and quick delivery

  • 5
    Window Lock

    Posted by David Carter on Sep 06, 2019

    Very pleased with this item and also the emails informing me of the progress of the order. A quick delivery

  • 5

    Posted by Ian Hall on Aug 29, 2019

    Full info given on web page, so very easy get the correct one

  • 5
    gordon reynolds

    Posted by gordon reynolds on Aug 13, 2019

    Exactly what we wanted, quick delivery and what I found better than most website was easy to browse. Really good price better for me than call someone out.