20 Piece Lift-The-Dot Fastener's Brass w/ Black Oxide Finish Top Quality Dot Brand Fastener's Socket Clinch Plate The Socket is made from durable black oxide coated brass, this socket will snap tightly. Strong enough to pierce through several layers of fabric, it's great for jobs using marine canvas and upholstery fabric. Applications include boat covers, boat seats, gear bags, luggage, outdoor fabric, tents, and awnings. The Lift-the-DOT socket P/N- 90-XX-16205-1B Lift-the-DOT fasteners seal on three sides and release by raising the fourth side where the dot appears. Scovill's DOT product series has offered strength and quality for over 100 years. All fasteners are created in the USA. You Will Receive 20 of the Sockets 20 of the Clinch Plates We Ship Internationally! Northwest Tarp Canvas Have a Nice Day!