Major Manufacturing’s HIT-66 System
Introduction Major Manufacturing's HIT-66 System is one of the most [...]
Introductory Locksmithing: Lock Functions
Introduction Locks come in a variety of shapes, sizes, finishes, [...]
Sargent 10 Line Series Overview
Manufacturer: Sargent Series: 10 Line Type: Cylindrical Leverset Warranty: 7 year [...]
Patents That Shaped American Locksmithing, Part 3: Walter R. Schlage’s Cylindrical Lock
Patent Number: 1,674,841 (Google Patents) Filing Date: August [...]
Library Update: ANSI/BHMA Lock Function Reference Chart
We've just added a reference chart (direct link here) to the [...]
Library Update: Cylindrical Leverset Manufacturers Cross-Reference
We've recently added a cross-reference PDF to the Cylindrical and [...]