كرة Tough-Ball™ من RAM® مع مسمار ملولب 1/4"-28 × .25" - حجم B

The rubber ball is a perfect 1" diameter, so it seats snugly into any B size socket without any wobble. The 1/4"-28 threaded stud grabbed my accessory cleanly on the first try, and the whole setup feels rock solid. Exactly what I needed for a secure mount.

The 1/4"-28 threaded stud is machined precisely, so it screws into my rig without any wobble, and the 1" rubber ball holds its position firmly once tightened. It's a solid little component that feels like it'll outlast the gear it's attached to.

The rubber ball on this mount grips much better than the hard plastic ones I’ve tried before. It held my action camera steady through a bumpy off-road ride without any slipping.