Classic Spherical Door Knob Lock - Heavy Duty Mechanical Round Knob for Bedroom, Bathroom, Office

Upgrade your interior door hardware with this classic and reliable Spherical Door Knob Lock. Expertly engineered for smooth, hassle-free operation, this mechanical ball lock features an ergonomic handshake design crafted from high-quality aluminum alloy sheets with a non-corrosive, crack-resistant surface treatment. Inside, a high-grade solid copper lock cylinder provides exceptional wear and corrosion resistance, significantly extending the service life of your security setup. Designed for versatility, the exterior knob unlocks via a physical key, while the interior is equipped with a smooth reverse lock turn-knob for privacy and security—making it perfect for safeguarding bedrooms, bathrooms, offices, and residential spaces throughout the night. With a standard configuration built to fit doors between 40mm and 60mm thick, this sleek satin-finished round knob offers a seamless, universal fit that effortlessly replaces old lock configurations with standard 40mm center-to-center screw spacing.

PRODUCT FEATURES

• Features an ergonomic, minimalist round ball knob design that operates smoothly and coordinates beautifully with modern interior home and office decors.
• Equipped with a premium copper core that delivers excellent wear and corrosion resistance, ensuring long-lasting durability and security.
• Crafted utilizing high-quality aluminum alloy sheets with an advanced surface treatment process to prevent cracking, rust, and degradation over time.
• Designed with a convenient interior thumb-turn knob, allowing you to lock the door from the inside quickly for complete overnight peace of mind.
• Features a reliable external key slot that can be unlocked from the outside using the provided matching keys for added restricted access control.
• Perfect for retrofitting old locks; compatible with any lock body featuring dual square rods and two center screw holes positioned exactly 40mm apart.
• Universally compatible with standard interior wood, composite, or alloy doors ranging from 40mm to 60mm in thickness.
• A highly versatile mechanical lock solution perfectly suited for bedrooms, bathrooms, kitchens, restrooms, and commercial office room doors.
• Engineered with precise structural specifications including a 63mm rose diameter, a comfortable 73mm knob diameter, and an 80mm overall projection length.
• Comes supplied with everything needed for a fast, straightforward DIY installation, including the spherical handle set, standard latch mechanism, and a set of keys.
• aluminum alloy
• Wipe Clean
• Imported

Circuit Terra Inc
6208 Lehman Dr, Colorado Springs, CO 80918
support@circuitterra.com

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