The ProSource LS3X901YASR4V24 privacy lever delivers what contractors need most: an adjustable backset that fits both 2-3/8” and 2-3/4” door preps. At Grade 3 residential rating with contemporary matte black powder-coated finish, it handles bedroom and bathroom doors without the premium price tag of Grade 2 hardware.
Installation Specifications and 6-Way Adjustability
The 6-way adjustable latch makes this lever worth considering for contractors who deal with varying door setups. Here’s what matters for installation:
| Specification | Value |
|---|---|
| Cross bore diameter | 2-1/8 in (53 mm) |
| Edge bore diameter | 1 in (25 mm) |
| Adjustable backset | 2-3/8 in or 2-3/4 in |
| Door thickness compatibility | 1-3/8 in to 1-3/4 in |
| Faceplate size | 25.2 mm x 56.7 mm |
| Strike size | 57 mm x 44 mm |
| Bolt throw | 12.5 mm |
| Projection | 59.7 mm |
The reversible design fits left and right-handed doors without special tools or additional parts. No special tools needed to switch handing — flip it in the field if plans change.
Installation difficulty rates as “Easy DIY” requiring only a standard Phillips screwdriver. The process follows standard door hardware installation: ensure door is prepped with 2-1/8 inch cross bore and 1 inch edge bore, adjust latch to match backset, install latch into door edge, insert exterior and interior levers through the latch and secure with provided mounting screws, then install strike plate on the door frame.
Design and Build Quality
At 1.77 lbs, this lever uses metal/zinc alloy construction with powder-coated matte black finish. The LS3 contemporary lever design matches current residential trends without looking dated in five years.
The full lip round corner strike provides clean door closure. The privacy function works as expected — push-button/thumb-turn inside with emergency release outside.
What’s included: exterior lever assembly, interior lever assembly, 6-way adjustable latch, full lip round corner strike plate, mounting screws, and emergency release tool.
Verdict for Montana Contractors
This ProSource lever makes sense for volume residential work where you need reliable hardware that won’t blow the budget. ANSI Grade 3 certification means it’s built for residential interior doors in bedrooms, bathrooms, and closets. Don’t spec it for high-traffic commercial applications — that’s what Grade 2 hardware is for.
The real value shows up in the 6-way adjustable latch. One SKU covers multiple door configurations, reducing inventory headaches and preventing wrong-backset callbacks. For Montana’s residential boom, particularly multi-family projects where consistency matters more than premium features, this lever delivers what’s needed.
ProSource is generally noted for providing reliable, budget-friendly hardware with clear instructions. While not a premium brand competing with Schlage or Baldwin, it fills the gap for straightforward residential privacy needs. The powder-coated finish should handle Montana’s dry climate better than cheaper painted alternatives.
Skip it if you’re building high-end custom homes where hardware becomes a design statement. But for production builders, remodelers, and multi-family contractors who need dependable privacy levers that install without surprises, this ProSource model hits the mark.
Frequently Asked Questions
Q: Will this lever work with my existing 2-3/8” backset doors?
A: Yes. The latch adjusts to either 2-3/8” or 2-3/4” backset, covering both standard residential door preparations. Adjust the latch to match your backset before installation.
Q: What door thicknesses does this lever accommodate?
A: The lever fits door thicknesses from 1-3/8” to 1-3/4”, which covers standard interior residential doors. Thinner or thicker doors require different hardware.
Q: Does the matte black finish hold up over time?
A: The powder-coated matte black finish provides better durability than painted finishes. Powder coating resists chipping and wearing better than liquid paint, though heavy use will eventually show wear on any finish.
Q: Is this appropriate for exterior doors?
A: No. This is a privacy lever designed for residential interior doors like bedrooms, bathrooms, and closets. Exterior doors require entry locksets with keyed cylinders and weather-resistant features.
Q: What’s the difference between Grade 2 and Grade 3 hardware?
A: This Grade 3 lever meets ANSI/BHMA standards for residential/light commercial use. Grade 2 hardware undergoes more rigorous testing for durability and security, making it suitable for heavier commercial traffic. Grade 3 works fine for typical home interior doors.
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