No-Drill Retrofit Smart Lock SK-K7 — TTlock Fingerprint Password Lock for Thermal Break Aluminum Shop Glass Doors

SK-K7: No-Drill Retrofit Smart Lock for Aluminum Shop Doors

The SK-K7 is a slim, retrofit smart lock designed to replace the old mechanical mortise lock on thermal break aluminum doors and shop frame glass doors. No drilling, no rewiring — swap the lock cylinder body, bolt on the SK-K7, and the door becomes a keyless access point with TTlock app control.

Key Features

• 5 unlock methods: fingerprint, PIN code, 13.56 MHz IC card, mechanical key, and TTlock app (Bluetooth).
• Remote passcodes via TTlock cloud: Permanent, Timed, One-Time, Custom, and Recurring codes — no physical key handover.
• No-drill retrofit: matches the standard mortise lock body footprint (115 mm / 160 mm mounting) — direct swap, no new holes.
• Slim black faceplate for narrow aluminum profiles and glass shop frames.
• B-grade lock cylinder with anti-pick design.
• Works with short-term rentals and multi-store chains through the TTlock cloud audit trail.
• 4 x AA battery operation with low-battery alert.

Typical Applications

• Thermal break aluminum storefront doors
• Shop frame glass doors and sliding glass shop entrances
• Cafe, boutique, and convenience store front doors
• Airbnb / short-term rental apartments and co-working offices
• Back-of-house and stockroom doors in retail chains

Technical Specifications

Model	SK-K7
Unlock ways	Fingerprint + PIN + IC Card + Mechanical Key + TTlock App
Smart app	TTlock (BLE), cloud passcodes, optional WiFi gateway
Data storage	Cloud + local memory
Lock cylinder grade	B-grade (anti-pick)
Mortise body	Standard retrofit mortise (115 mm / 160 mm mounting, 30 mm latch)
Faceplate	Slim black aluminum profile
Door type	Thermal break aluminum, shop frame glass, narrow profile
Power	4 x AA batteries
Origin	Guangdong, China

OEM / ODM & Wholesale

The SK-K7 is available for bulk wholesale, custom logo, and private-label packaging. We supply security distributors, system integrators, short-term rental managers, and chain-store procurement teams across the USA, UK, Australia, Turkey, Southeast Asia, and the Middle East. Send your door thickness and lock body dimensions, and we will confirm fit before you order.

Rainbow Sky — smart lock OEM/ODM manufacturer since 2009. FOB Shenzhen, MOQ-friendly, multi-language firmware supported.