ProSource Combination Lockset Matte Black: Adjustable Installation Flexibility for Montana Contractors

ProSource’s Combination Lockset delivers what contractors actually need — adjustable installation flexibility and residential-grade security at a price that makes sense for volume door hardware projects. The ANSI Grade 3 certified lockset features a 6-way adjustable latch mechanism and dual backset options (2-3/8” or 2-3/4”), eliminating the inventory headaches that come with fixed-backset hardware.

This matte black combination set targets contractors handling multi-unit residential updates, property flips, and standard entry door installations. The all-metal components construction handles Montana’s temperature swings, while the universal handing saves time on jobsites where door swing directions vary.

Installation Flexibility That Actually Matters

The adjustable features separate this lockset from basic Grade 3 competitors. The 6-way adjustable latch provides flexible installation and clearance options, adapting to imperfect door preps common in renovation work. The adjustable backset (2-3/8” or 2-3/4”) matches most standard door preparations, meaning contractors stock one SKU instead of two.

Universal handing (reversible) works for both left-hand and right-hand doors. No more ordering separate left and right versions or making emergency supply runs when plans change.

Specification	Value
Backset Options	2-3/8” or 2-3/4” adjustable
Door Thickness Range	1-3/8” to 1-3/4”
Cross Bore	2-1/8”
Edge Bore	1”
Latch Throw	1” for both deadbolt and plain bolt
Keyway	Kwikset KW1 (5-Pin Cylinder)

Mounting requires only a Phillips screwdriver with screw-mount installation into pre-drilled holes. The adjustable latch means less fussing with strike plate alignment — a real time-saver on multi-unit projects.

Complete Security Package for Property Management

The single-cylinder deadbolt provides keyed entry with interior thumb-turn, meeting basic residential security needs without overcomplicating installations. ANSI Grade 3 certification confirms residential security standard compliance — adequate for most rental properties and primary residences.

The combination format matters for procurement efficiency. Included items cover everything needed: entry lockset (knob or lever), single-cylinder deadbolt, KW1 keys (typically 2-4 depending on the pack), mounting hardware (screws), strike plates (full lip round corner), and faceplates. One SKU handles the complete entry door hardware package.

Applications include primary entry doors for residential properties, side or back doors requiring keyed security, interior rooms such as home offices or storage units where a lock and deadbolt combination is desired, and cost-effective solutions for property flips and multi-unit residential updates.

Model Variations and Professional Context

ProSource offers two model variations in this matte black finish. Model BFX9L1BSR4V24 features a Baron style knob and deadbolt combination. Model HPX9S3BSR4H24 provides a lever handle and deadbolt with a square rosette. The lever option meets ADA requirements for accessible units.

The competitive set includes Kwikset Tylo/Polo Series (Grade 3 counterparts), Schlage J-Series (standard residential line), and Defiant (big-box house brand alternatives). ProSource positions between the big-box basics and premium residential brands.

Warranty coverage includes ProSource lifetime warranty for manufacturing defects in materials and workmanship. The warranty is non-transferable (applies to original purchaser), valid for U.S. residents, with replacement remedy only. Claims must be filed directly with ProSource rather than the retail store.

Consumer sentiment for the ProSource brand generally highlights its affordability and ease of installation. ProSource Wholesale positions itself as serving trade professionals and contractors with first-quality residential and commercial products, reinforcing the professional-grade positioning despite the Grade 3 rating.

Frequently Asked Questions

What’s the real advantage of the 6-way adjustable latch? The 6-way adjustable latch provides flexible installation and clearance options, adapting to door frames that aren’t perfectly square or have non-standard prep. This feature saves callbacks on renovation projects where existing door frames have settled or shifted.

Does this lockset work with standard Kwikset keys? Yes, it uses the Kwikset KW1 keyway with a 5-pin cylinder. Existing KW1 keys can be duplicated at any hardware store, and the lockset can be rekeyed to match existing Kwikset locks.

What door thicknesses does this handle fit? The lockset fits door thicknesses from 1-3/8” to 1-3/4” (35mm - 45mm), covering standard residential door sizes including both older 1-3/8” doors and modern 1-3/4” doors.

How does the adjustable backset actually work? The mechanism adjusts between 2-3/8” (60mm) or 2-3/4” (70mm) backset measurements to match existing door preparations. This eliminates the need to stock separate locksets for different backset requirements.