Don-Jo SMEST-175 Extended Lip Mortise Strike – Schlage Prep, 13 Ga. Non-Ferrous, Satin Stainless, Dark Bronze, or Flat Black

The Don-Jo SMEST-175 is an extended lip mortise strike engineered to replace or upgrade the factory strike on doors prepped for Schlage mortise locksets. Manufactured by Don-Jo Manufacturing from 13-gauge (.095) non-ferrous material, this mortise strike measures 1-3/4" wide × 4-7/8" tall and features two latch holes to accept the bolt and deadbolt of a standard Schlage mortise prep. The 1-3/4" lip dimension is measured from the center of the screw hole to the end of the lip — the specification that matters most when matching an extended lip mortise strike to an existing door frame or hollow metal frame jamb. Available in three finish options — 630 satin stainless steel (US32D), Duranodic dark bronze (Don-Jo DU), and 622 / US19 flat black — the SMEST-175 allows specifiers and locksmiths to coordinate hardware finish across the door opening without sacrificing dimensional accuracy on the Schlage mortise strike footprint.

SMEST-175 Extended Lip Mortise Strike Features

• Extended Lip Geometry: 1-3/4" lip measured from center of screw hole to end of lip, providing the additional frame coverage required on Schlage mortise strike preparations.
• Dual Latch Holes: Two latch holes accommodate both the latch bolt and deadbolt of a Schlage mortise lockset prep, ensuring a drop-in replacement fit.
• 13-Gauge (.095) Non-Ferrous Construction: Heavy-duty 13 ga. thickness delivers a rigid, durable mortise strike face suitable for commercial hollow metal and wood door frame applications.
• Three Finish Options: Choose from 630 satin stainless steel (US32D), Duranodic dark bronze (Don-Jo DU), or 622 / US19 flat black to coordinate with the surrounding door hardware finish package.
• Overall Size – 1-3/4" × 4-7/8": Standard ASA strike face dimensions align with typical Schlage mortise strike cutout dimensions in hollow metal frames and wood jambs.
• Schlage Mortise Prep Compatibility: Designed to fit the Schlage mortise strike prep; serves as a direct replacement or upgrade for worn or undersized factory strikes on Schlage-prepped openings.
• Commercial Shelf Pack of 5: Sold in shelf packs of five units — practical for contractors, locksmiths, and facility managers maintaining multiple Schlage mortise openings.

Technical Details

How to Specify / Order

Order the Don-Jo SMEST-175 by specifying the model number followed by the finish code: SMEST-175-630 (satin stainless steel / US32D), SMEST-175-DU (Duranodic dark bronze), or SMEST-175-622 (flat black / US19). This is a non-stock item that ships directly from Don-Jo Manufacturing with an estimated lead time of 3–10 business days. Confirm the Schlage mortise prep dimensions on the door frame before ordering to ensure the 1-3/4" lip and 4-7/8" face height match the existing strike cutout.