About Our Business SUMMIT FASTENERS supplies contractors with top quality products at an affordable price. SUMMIT FASTENERS is one of the largest suppliers in the west of "SEISMIC" hardware manufarcurtured by Advanced Connector Systems (ACS). SUMMIT knows and understands the strict building codes of the west when it comes to systemic hardware, therefore you can trust that ASC meets the codes when it comes to seismic hardware. SUMMIT FASTENERS also has a large supply of NAILS, SCREWS, and POWER TOOL equipment to meet the needs of all types of construction.