Available only from Middle Atlantic Products, the Guardian Series(TM) square post security rack screws are patent pending and feature a unique square post drive not found in hardware stores or catalogs. Self-guiding 10-32 by 3/4" screws, includes pre-installed black nylon washers. Lot of 100. Black oxide finish.
- Highest security screw, exclusive to Middle Atlantic Products.
- Includes pre-installed black nylon washers