Don-Jo MEST-115 Extended Lip Mortise ASA Strike – 13 Gauge, 4-7/8", Three Finish Options

The Don-Jo MEST-115 is an extended lip mortise ASA strike engineered for doors prepared with a mortise lock pocket where a longer lip is required to bridge the doorstop and protect the latch bolt. Don-Jo Manufacturing produces this strike in 13 gauge (.095) non-ferrous material, giving specifiers and locksmiths a rigid, professional-grade replacement or new-installation strike that sits flush in the mortise cutout while the 1-1/2" extended lip—measured from the center of the screw hole to the end of the lip—clears the doorstop cleanly. Overall face dimensions are 1-1/2" wide × 4-7/8" tall, conforming to standard ASA/ANSI strike-box locations used by major mortise lock manufacturers. A single latch hole accepts the latch bolt throw. Three finish options are stocked on this listing: 630 satin stainless steel (US32D), Duranodic dark bronze (Don-Jo DU), and 622 / US19 flat black—allowing the strike to coordinate with the surrounding hardware finish on aluminum storefront, hollow metal, or wood door applications.

MEST-115 Key Features

• Extended Lip Mortise Design: Purpose-built mortise ASA strike with a 1-1/2" lip (center of screw hole to lip end) that clears the doorstop without trimming or shimming.
• Heavy 13 Gauge Construction: Formed from 13 ga. (.095) non-ferrous material for a solid, warp-resistant strike that maintains alignment under repeated latch engagement.
• Standard ASA Strike Footprint: 1-1/2" × 4-7/8" face dimensions conform to the ASA strike location used across the mortise lock market, simplifying direct replacement work.
• Single Latch Hole: One latch opening sized for the standard latch bolt throw of mortise locksets—no field modification required for most installations.
• Three Coordinating Finishes: Available in 630 satin stainless steel (US32D), Duranodic dark bronze (Don-Jo DU), and 622 / US19 flat black to match door hardware specifications on aluminum, hollow metal, or wood doors.
• Not Handed: A single SKU per finish works on both left- and right-hand door preparations, reducing ordering complexity.
• Sold in Shelf Packs of 5: Packaged in quantities of five, making the MEST-115 practical for locksmiths and facility maintenance teams managing multiple openings.

Technical Details

How to Specify / Order

Specify by model and finish designation: MEST-115-630 (satin stainless steel), MEST-115-DU (Duranodic dark bronze), or MEST-115-622 (flat black). This item is non-stock and ships direct from Don-Jo; allow 3–10 business days lead time. Order in shelf-pack multiples of 5 when stocking for service work on multiple mortise lock openings.