#10 38mm (1 1/2") Screw

This durable, standard length of TeacherGeek machine screw is an excellent addition for STEM | STEAM activities or science fair projects. These are longer than the normal 1" (25mm) screws used in most TeacherGeek projects. Excellent for Projectile Launchers, or other special applications. Pair with #10 washers, nuts or locking nuts to craft complex fastening systems.

You may want to use these machine screws with:

• #10 Washers
• #10 Nuts
• #10 Locking Nuts