On Friday 5/23 Fastener SuperStore will be closing at 5:00pm CT for the holiday weekend. Orders placed after 3pm CT will ship Tuesday 5/27. Happy Memorial Day!

4-40 Machine Screws

4-40 Machine Screws

For the right 4-40 machine screw for your application, select your length, head style, drive style, material & finish with the check boxes on the left.