JNF surface-mounted security lock with strike plate – Satin stainless steel
This JNF surface-mounted security lock is a robust security lock for door mounting and is made of EN 1.4301 (AISI 304) stainless steel with a satin finish. The lock has a Grade 3 classification and is available in left-hand and right-hand versions .
For complete installation, we supply the security lock together with the matching JNF strike plate IN.20.006 . This ensures you receive both the surface-mounted lock and the correct strike plate for mounting on the door frame.
The lock is prepared for a Euro profile cylinder . The cylinder and the security escutcheon are not included and can be selected separately. For doors with a thickness of 30 to 40 mm, JNF recommends a 90 mm cylinder (60+30) in combination with the JNF security escutcheon IN.04.29S . This combination ensures a correct fit of cylinder, security escutcheon, and lock.
The closed lock case, reversible latch, and security deadbolts are manufactured from stainless steel. The lock also features mounting holes for the door handle and an 8 x 8 mm spindle with an internal spring . This spring helps to limit play between the door handle, spindle, and the lock.
When selecting the variant, the matching strike plate is automatically combined:
- Left: JNF security lock IN.20.005.E + strike plate IN.20.006.D
- Right: JNF security lock IN.20.005.D + strike plate IN.20.006.E
Please note: the Euro profile cylinder, the security escutcheon, and the door handles are not included. For doors 30 to 40 mm thick, the lock can be combined with a 90 mm cylinder (60+30) and the JNF security escutcheon IN.04.29S.
Technical specifications
| Brand | JNF |
| Product type | Surface-mounted security lock with strike plate |
| Assembly | Structure |
| Variants | Left / Right |
| Material lock | EN 1.4301 (AISI 304) stainless steel |
| Striker plate material | EN 1.4301 (AISI 304) stainless steel |
| Finish | Satin stainless steel |
| Classification | Grade 3 |
| Lock case | Closed lock case |
| Day lap | Reversible, stainless steel |
| Night latch | Stainless steel safety deadbolts |
| Cylinder type | Euro profile cylinder |
| Cylinder included | No |
| Recommended cylinder | 90 mm (60+30) for door thickness 30–40 mm in combination with IN.04.29S |
| Safety shield included | No |
| Recommended safety shield | JNF IN.04.29S for doors of 30–40 mm |
| Crank pin pickup | 8 x 8 mm with internal spring |
| Strike plate included | Yes |
| Strike plate variant Left | IN.20.006.D |
| Strike plate variant Right | IN.20.006.E |
| Door handles included | No |
| Sales unit | Set: security lock + matching strike plate |






