Australian owned and operated, Synergy Construction & Industrial Supply Group comprises of 22 Synergy owned stores: CDA Eastland Trade Supplies, Nepean Boltmaster, CCT Construction Supplies, Colmark Fasteners, West Coast Fasteners, Kencor Sales and CQ Fasteners along with over 40 Synergy Member stores. Working together, Synergy Construction & Industrial Supply Group has a national footprint which can supply all your construction, engineering and industrial needs.