What type of boat cover fastener (i.e. snaps, straps, and magnets) is the most prominent or most common in the recreational boating industry? Which do you prefer? - Quora
Twist Stud @5 (8-560191): Boat Cover Hardware: Canvas Fasteners & Accessories at Valley Marine Arizona
Amazon.com: DOT Twist Lock Barrel Stud w/Backing Plate, Common Sense Eyelet & Heavy Duty Clinch Plate 1 Piece Set : Industrial & Scientific
DOT Common Sense Two Screw Base Stud Double Fasteners Twist Lock 1 piece