Overview Reviews Product Description A Taper. 9mm thread diameter. 6/8mm solid shafts. 10mm thread length. 30mm height (shaft to shank). No centre detent. Product Videos Custom Field Product Reviews Write a Review Write a Review × EAGLE EAGLE GPA250DDual Concentric Stacked Potentiometer - 250k. Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *