The screw studs will fit the sockets and plates we have for sale. 
These are genuine DOT brand fasteners. 
Made by the worlds leading canopy fastener manufacturer

Lift the dot self taping screw stud (Short Thread)

The Spec
**Genuine DOT fastener**
Overall length 22mm
Nickel plated brass head
Stainless steel 3/8" Thread
Marine grade

These fasteners are perfect for fasten down all boat canopy covers, gazebo curtains and other upholstery / leather work.