5/16-18X4 Thumb Screw Plain Fully Thread Zinc (Pack Qty 200) BC-3164T

For use in applications where the fastener is frequently adjusted and where tightening torque greater than that achieved with finger pressure is not required. A shoulder-pattern allows the head of the screw to seat flush against the mating surface and helps avoid over-tightening of the fastener which could result in stripped mating threads Steel: Commercial quality carbon steel Stainless: 18-8 Stainless