Pull The Dot Snap Set, 10 of ea. Cap / Socket / Stud w/ 3/8" Screw Locking snap assures a firm grip that will remain secure through years of use. Superior snap action and holding strength Widely used throughout the Military, Law Enforcement, Aviation Maritime industry for the extreme holding power of the snap under arduous conditions If you are nearby we can install these fastener's for you, or you can take them to your local canvas shop to have them installed These fastener's require a special die for setting properly. The screw studs can be installed with a Phillips screw driver tip. All parts are nickel plated brass - industry standard. We Ship Internationally! Northwest Tarp Canvas Take a Look Our Quality Tarps! Have a Nice Day!