3/8″ Thumb Screw T Bolts Gray Plastic Tee Wing Clamping Knob Stainless Steel
3/8″ Thumb Screw Bolts with Gray Butterfly Tee Wing Knob. Clamping Knobs for hand tightening. 3/8″ Thumb Screw T Bolts Red Tee Wing Plastic Clamping Knob Stainless Steel. 3/8″ Thumb Screw Bolts with Red Round 6 Point Plastic Clamping Knob Stainless.