304 Stainless Steel Nail Security Door Chain Lock Silver Compact, durable door chain lock that adds a simple layer of entry control without drilling or permanent hardware. Designed for everyday use to let you partially open a door for verification while keeping the door secured. Key benefits Enhanced security: Thickened chain and solid latch restrict door opening to prevent unwanted entry while you check visitors. Durable construction: Made from 304 stainless steel for corrosion resistance and long term use in interior and sheltered exterior settings. No drilling required: Nail glue mounting provides a fast installation option that avoids damage to door frames and keeps installation simple. Easy to use: Smooth glide chain and secure latch make operation quick and reliable for household and rental use. Low profile design: Compact silver finish blends with most door hardware and does not obstruct normal door closing. Features and specifications Material 304 stainless steel for strength and corrosion resistance Installation method Nail glue adhesive for tool mounting Piece count 1 piece included in silver color Suitable for use on flat, clean surfaces such as wooden and metal doors and door frames Function Provides a chain latch that limits door opening for added security and privacy Use scenarios Apartment entry doors Use to verify visitors without fully opening the door. Ideal for tenants who want a non permanent security option. Short term rentals and shared housing Add an extra layer of guest safety during stays. Easy to install and remove between occupancies. Homes with children or elderly occupants Allow partial opening for ventilation or passing small items while keeping the household secure. Simple installation and care Clean and dry the mounting surface thoroughly before applying adhesive. Follow adhesive product instructions for placement and curing time. Press firmly and allow proper set time before first use. Wipe clean with a soft cloth. Avoid abrasive cleaners to maintain finish. Package contents One 304 stainless steel chain lock in silver, with nail glue mounting hardware included This chain lock offers a practical, non invasive way to add controlled access to a door. Use it where a quick installation and reliable day to day function are needed.