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RAM Mounts Key Lock Knob with Brass Insert for C Size Socket Arms
The RAM Mounts Key Lock Knob with Brass Insert is designed for C size (1.5") socket arms and features a brass 5/16"-18 threaded insert. Made from aluminum and rubber with a 3.81 cm (1.5") ball diameter, the knob allows controlled locking and disengagement of the screw when adjusting RAM C size arms.
The brass 5/16"-18 insert provides durable, corrosion-resistant threading while the aluminum and rubber construction balances strength and grip. The knob permits you to lock a mounted device securely in position after adjustment and to disengage the screw for repositioning without damaging the socket arm or thread.
Thread the knob onto the 5/16"-18 stud of the C size socket arm until the socket and ball are positioned as required. To reposition, disengage the knob’s threading as needed, adjust the arm, then tighten the knob to lock the mount in place. Use moderate hand force to avoid over-tightening and ensure the brass insert and threads engage smoothly.
For best performance, inspect threads and the brass insert periodically for wear or corrosion, especially in marine or high-moisture environments. Replace the knob if threads become stripped or if the insert loosens to maintain secure mounting.
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