Leggett & Platt - Vertex Fasteners 1 Rev. A Operational Instructions for Vertex Prostick Tool VA0317 Vertex Fasteners is committed to providing our customers with world-class customer service and support. Our dedicated regional sales/s 1 Rev. A Operational Instructions for Vertex Prostick Tool VA0317 Vertex Fasteners is committed to providing our customers with world-class customer service and support. Our dedicated regional sales/service technicians are Vertex employees.