Interior Door Lever Lock Set (Aluminum Alloy, Quiet Latch)
Interior door lever lock set built for bedrooms, offices and steel-wood doors where the door is opened and closed all day and noise carries. The body is cast in aluminum alloy and treated against rust and corrosion, passing a 72-hour salt spray test, while the lever is solid rather than hollow so it keeps its shape under daily use. A steel-ball bearing sits inside the handle and the latch carries twin rollers, so the door closes with a damped click instead of a rattle. The latch uses a double-bolt layout, a sprung latch plus a separate deadbolt, which gives basic security without a bulky mortise body. Fitting follows the common small-50 pattern with a 45 mm backset, and the set can be supplied with 304 stainless hinges, a door stop and keys. Gunmetal gold and bright chrome finishes cover both traditional and modern interiors.
| Material | Aluminum Alloy Body, 304 Stainless Trim |
| Latch | Double Bolt: Sprung Latch + Deadbolt |
| Handle | Solid Lever with Silent Ball Bearing |
| Backset | 45 mm (Small 50 Series) |
| Corrosion | 72-Hour Salt Spray Tested |
| Finish | Gunmetal Gold or Bright Chrome |
Why Buyers Choose This Product
- Solid lever with an internal steel-ball bearing keeps the handle quiet and firm
- Twin-roller latch closes with a damped click instead of a rattle
- Aluminum alloy body with a 72-hour salt spray rating resists rust indoors
- 45 mm backset and the small-50 pattern suit most interior door preparations
- Hotel and apartment refurbishments can replace worn handles across many rooms from one part number, keeping the existing keys and cylinders in service
