Amazon.com: T Tulead Slide Door Latch Lock Stainless Steel Barrel Lock Square Latch Lock 3-Inch,Matte Black,2PCS with Mounting Screws : Tools & Home Improvement
DCSC IT-20SQ Bottom Rail Lock - Square Bolt
TOGU TG-DB-S001 Square Contemporary Heavy Duty Single Cylinder Deadbolt Lock, Front Entry Door Lock, Brushed Stainless Steel Finish - Amazon.com
Sargent & Greenleaf 6120-308 Square Bolt Lock Body Only | eBay
Bar bolt lock, square/hexagonal socket, backset 42,5 mm (1-11/16 “) – Craft Supply
Amazon.com: BESTTEN Heavy Duty Deadbolt Door Lock, Keyed One Side, Single Cylinder, Thumb Turn Inside, Square Design in Satin Chrome Finish : Tools & Home Improvement
Progressive Hardware #IT20SQ Glass Door Lock Square Bolt,15/16" BS, Herculite | Security Supply Direct
Berlin Modisch Single Cylinder Deadbolt Lock Slim Square for Front Door Modern Contemporary High Security Heavy Duty – Satin Nickel Finish - Amazon.com
Contemporary Square Pocket Door Lock Privacy/Bed/Bath — Stone Harbor Hardware
Defiant Contemporary Square Matte Black Single Cylinder Deadbolt 32DC6XK1 - The Home Depot
9700-629-LBM Hes Windstorm and Fire Rated Square Bolt Solution Surface Mounted Electric Strike with Latchbolt Monitor in Bright Stainless Steel - Lock Depot Inc