Keyless Entry Door Lock -Deadbolt Lock, Mechanical Door Lock, Deadbolt Keypad Mechanical Stainless Steel (Pass Code or Key) No Electronic

SpecificationProduct Size：5-1/2" x 3-1/4"Adapter door thickness：1-3/8“ (to) 2”Center distance：1-3/16”(to) 2-1/8Lock margin：2-3/8”(to) 2-3/4”Open the door：inside and outside.

• 100% Mechanical & Battery-Free Never worry about power failure or dead batteries. This keyless entry lock operates entirely through mechanical action, offering reliable access with either a customizable passcode or traditional physical key.
• Dual-Access Security with High Pick Resistance Choose between keypad entry with 4–8 digit codes (over 8,000 combos) or key override. The mechanical deadbolt and reinforced bolt design deter prying and forced entry attempts.
• Enhanced 304 Stainless Steel Construction Built with industrial-grade 304 stainless steel deadbolt and housing, providing superior resistance to corrosion, weather, and physical tampering. Material strength significantly exceeds standard zinc alloys.
• Universal Fit for Standard Doors Fits door thicknesses of 35–50mm (1.38–1.96") and bore holes up to 2-1/8". Compatible with left/right and inward/outward opening doors. DIY installation supported with video guide.
• Wear-Resistant Keypad & Manual Locking Control Keypad leaves no visible wear patterns for added privacy. Lock does not engage automatically—you decide when to lock, eliminating repeated code entry.