VEX-275-0659 VEX Robotics Screw 6-32 x 0.250in. Silver, 50-pack <p><font color="00ff66" size="2" face="Arial, Helvetica, sans-serif">6-32 Screw with Button Head. Use with the 5/64" VEX Allen wrench. Use for Motors and Servos only. High Strength Stainless Steel.</font></p>