Spring loaded hatch lock for large boats.
Drill a 5/16 inch hole in the panel (hatch).
Drill a 1/2 inch hole in the sub panel (hull).
These locks will hold panels up to about 1/4 inch thick.
Made from clear anodized 6061 aluminum and stainless steel.
Set includes a pair (2) hatch locks
Pin is retained by a small set screw. Be sure to check this before use.