We can supply you with 4* 4.5 inches and 4.5*6.25 inches plunger type swivel locks.

Product: Plunger type swivel locks

Specification:

Fits Top Plate(inches)	Plunger Type Swivel Locks Part Number	Weight(lbs)
4×4 1/2	4-PL	0.3
4 1/2×6 1/4	4-PLD	0.35

Pls feel free to contact us if you are interested in it.

Plunger type swivel locks