The twist arm features can be used for closing the window and also for locking the sash windows into a secure position by tightening the knurled knob. 4x Sash Window Fastener & Lock; Available in Silver or Brass.
eBay
Upgrade the security on your UPVC window or door. Enhance security of UPVC windows and doors. Window Safety Cable Lock. 4 x Window Lock （with screws）.
eBay
Pack of x6 Yale P6P119 Window Bolts Yale P6P119 Sash window locks have a threaded lock barrel which is fixed into the inner frame and the window is secured by locking the inner bolt into the barrel and frame using the key. Can also be used in hinged windows. The locks simply screw into the barrel. The Yale Sash Window Lock with key is a robust and reliable security solution designed to enhance the safety of your home. Crafted with precision and durability in mind, this lock is specifically engineered for sash windows, offering an effective deterrent against unauthorized access. The inclusion of a key adds an extra layer of security, allowing you to control and restrict access to your windows.
eBay
Window Stay Lock With Key And Screws (Brass/Zinc).
eBay
Description:[Anti-wear Pad] Window and door locks, 4 pieces per set, with matching anti-wear pads to prevent direct contact with windows and doors[Easy to Assemble] with matching screws - mark the position of the mounting holes with a pen before installation, drill holes in the marked positions, and then fix the lock with screws. When installing, the window needs to be closed to confirm the gap between the window frame and the sash, and gaskets and anti-friction pads should be selected according to the size of the gap.[Easy to Operate] Snap-on lock, more convenient to use. When using the window anti-theft lock, you only need to turn it to lock or release the window sash, prevent children from opening the window[Application Range] The flat lock blocker is sui.
eBay
Screw, Arm or Fitch fastener. Sash window fasteners. Keep your windows secure with these sash window locks. Door Locks. Window Hardware. Safe & Secure. Knowledgeable staff who are always happy to help.
eBay
Sliding Sash Window Stop / Restrictor. Carlisle Brass. Enables window to be locked in open position for ventilation.
eBay
Upgrade the security on your UPVC window or door. Handle：Plastic Enhance security of UPVC windows and doors. Locks Material: Zinc alloy. 10 x Window Lock （with screws）.
eBay