Application : The OBV locking bar can be released for full opening of the sash by keeping the push button depressed • The safety catch automatically restricts window opening regardless of the sequence of operation, and locks automatically • When the window is closed from the turn position, the limit opening function re-engages • This product is maintenance friendly as the frame section is adjustable within a range of 3mm
Base Material : Zinc alloy
Dimensions : Main body 138 x 16mm • Hook plate 98 x 13mm
Locking : See options below • Locking version operates by allen key (not supplied)
Fixings : Not supplied
Guarantee : 5 year replacement only against manufacturing faults and defects in normal use

With over 80 years of collective experience in the ironmongery and door trade, we have accumulated a vast wealth of knowledge. We are specialists in the preparation of ironmongery schedules for any size and type of contract, from a single dwelling through to large residential and commercial developments. The compatibility of the various ironmongery elements is a surprisingly complex field and we are happy to pass on our expertise upon request. Please complete the contact page with your query and we will endeavour to get back to you within one working day.

When ordering, please note the estimated delivery periods stated against each product. Where an item is noted as being “Normally available from stock”, we will endeavour to despatch the same or next working day except when ordered with other non-stock items. If ordering more than one product, we would despatch all items together and therefore the longest delivery period for the items ordered would apply. If you have a particular delivery requirement or would like split deliveries, please contact us before ordering. All delivery estimates are given in good faith, and based on the experience we have with our various suppliers.

Guarantee periods vary according to those offered by the manufacturer. It is important to note that the guarantees are limited to the replacement, refund or partial refund of the product purchased, and we shall not be liable for any associated labour costs whatsoever. It is especially important that items reported as having been received damaged should not have been fitted or altered in any way. For more information on our guarantees and returns policy, please see the information section at the bottom of the screen.