Used to secure jibs to the wire forestay. Locks positively over the stay with a sliding piston that closes a hooked end.
In the case of Bronze Sew-On Jib Snaps, installation requires the placement of a pressed spur grommet (usually a #2 or #3 size) just behind the luff reinforcement in the sail.
Snap Bronze #2 Sew-On 2 1/2" Specifications: (see Larger Image)
Length: 2.5 inches
Opening Width: 0.45 inches
Fits wire up to 7/16" diameter