Ozone Thumb Turn Lock and Strike Box OPL-3A STD SS | Finish: Stainless Steel

• Manufacturer: Ozone Secutech
• Model: OPL-3A STD SS — Thumb Turn Lock with Strike Box
• Supplied As: Lock and strike box together — a complete pair
• Operation: Thumb turn from inside — no key needed to lock or release
• Glass Compatibility: 10 mm and 12 mm toughened glass
• Finish: Stainless Steel
• Cover: SS Grade 304, secured with a small ‘L’ key
• Base: Aluminium alloy casting

Ozone Thumb Turn Lock OPL-3A locks a frameless glass door with a simple turn of a lever from the inside — no key, no fumbling. Unlike most patch locks in the range, it is supplied complete with its matching strike box, so there is no second component to order.

A thumb turn is the right choice wherever the person inside needs to secure the door quickly and get out again just as fast: a meeting room, a cabin, a clinic consulting room, a washroom, or a private office. Because it releases by hand from inside, nobody can be locked in by a missing key — which is exactly why key-operated locks are the wrong specification for occupied rooms.

The trade-off is deliberate. A thumb turn provides privacy and control from within, not security against forced entry from outside. For an external or unattended door, use a key-operated patch lock instead.

Technical Specifications

1) Does this come with the strike box?

Yes — unusually for this range, the OPL-3A is supplied as a complete pair with its matching strike box. Nothing else to order.

2) Where should I use a thumb turn lock?

Rooms that are occupied while locked: meeting rooms, cabins, consulting rooms and washrooms. It gives privacy and lets whoever is inside release the door instantly by hand.

3) Is it secure enough for a main entrance?

No, and we would not recommend it. A thumb turn provides privacy and control from inside, not resistance to forced entry. Use a key-operated patch lock such as the OPL-1 or OPL-4A for external doors.

4) Can someone be locked inside?

No, and that is the point. It releases by hand from within with no key required — which is precisely why key-only locks are the wrong specification for occupied rooms.

5) What glass does it fit?

10 mm and 12 mm toughened glass. Confirm your panel thickness, and check cutout requirements with your glass supplier before the panel is toughened.

1. Return within 24 hours of delivery for:
   • Damaged or defective product
   • Wrong or missing item
2. Product cannot be returned once installed or used
3. Refer to Refund Policy for complete details