Hi Hat Clutch Gibraltar SC 4420S.
The Gibraltar SC 4420S Clutch is an indispensable accessory for locking the hi hat, it uses Gibraltar's exclusive SuperGrip locking mechanism to securely lock the hi-hat plate to the traction rod and the lower nut equipped with a tension wrench lock prevents slipping during reproduction, it is compatible with 7 mm hi hat rods and Gibraltar series 6000/9000 rods but more generally it is compatible with most supports.