Quick fasteners with precise locating for position adjustment by sliding or rotation. Quarter-turn knob for quick locking and unlocking. Features ON/OFF markings and perceptible "click" when locking and unlocking. The 3-position (3P) version features coil spring pressure and includes a "MID" position on knob between the ON and OFF positions. Red indicator band is visible when fastener is in the OFF position. Tapered surface contact provides +/- 0.05 repeatability. Three socket head cap screws to mount fastener from the backside of body are included. The body made from 4140 steel with an electroless nickel-plated finish. The tapered pin is made from 4135 steel with an electroless nickel-plated finish. The knob made from black plastic.