

Product Details
LD-177 Stainless Steel Lever Door Handle Lock Set
LD-177 Stainless Steel Lever Door Handle Lock Set provides a complete entry door solution with reversible lever handle and integrated single-cylinder deadbolt in satin nickel and matte black finishes for residential and light commercial doors.
Core Features
- Reversible lever design for left and right-handed doors
- SUS304 stainless steel construction for corrosion resistance
- Integrated single-cylinder deadbolt with 25mm steel bolt
- 5-pin tumbler brass cylinder with anti-pick security
- Adjustable 60mm/70mm backset for international door standards
- Complete set with 2 cut keys and mounting hardware included
Application Scenarios
- Residential front and back door security installation
- Apartment and condo door lock replacement
- Office and commercial building entry doors
- Hotel and hospitality room door hardware
- Rental property security upgrade
- New construction residential door hardware
FAQ
What is the difference between single-cylinder and double-cylinder deadbolt?
Single-cylinder deadbolts use a key on the exterior and a thumb turn on the interior, providing easy emergency egress. Double-cylinder deadbolts require a key on both sides, offering higher security on doors with nearby glass panels. The LD-177 uses single-cylinder for safe interior exit.
Can the lever handle be reversed for different door swing directions?
Yes, the LD-177 lever is fully reversible. Simply remove a set screw, pull the lever off, flip it 180 degrees, and reinstall. No special tools beyond the included Allen key are needed.
What security grade is this lock set?
The LD-177 meets ANSI Grade 3 standards, suitable for residential and light commercial applications. Grade 1 is highest security for heavy commercial use, Grade 2 is intermediate commercial, Grade 3 is standard residential.
How many keys are included and can additional keys be made?
Each set includes 2 cut keys from the factory. Additional keys can be made at any locksmith or hardware store using the provided key blank. Master key systems are available for bulk orders.
Is this lock set suitable for exterior doors exposed to weather?
The SUS304 stainless steel construction provides excellent corrosion resistance for covered exterior entryways. For fully exposed outdoor installations, the satin nickel and matte black finishes offer additional weather protection.

