Rack Screws 500-pk The Middle Atlantic HP-500 Philips Truss-Head Screws are 3/4" long with 10-32 threads. These rack screws feature Philips truss head. For your convenience, each screw has a self-guiding pilot point to simplify installation. These screws come with installed nylon washers in a reusable jar. Features: 10-32 thread Self-guiding pilot points 500 pieces in a reusable jar Truss head Racks & Cabinets > Rack Accessories > Rack Screws & Hardware, Racks & Cabinets > Rack Accessories > Rack Screws & Hardware HP-500