Strong Arm Center Point Hand Knob kit is a 5/16" hand knob and 2-1/4" angle pins designed to make the joints of the Strong Arm Mounting System adjustable by hand making the system fully adjustable every 10 degrees without the use of any tools. The Strong Arm Center Point Hand Knob is a 5/16" hand knob constructed from 6061 T6 aluminum and has been clear anodized the 2-1/4" angle pins are SS with a plastic hand knob that features and allen socket head if you want them tighter than hand tight..
