Overview of VEX Screws

Standard VEX Screws

VEX Screws utilize the standard system, and the first number listed on a VEX screw is the thread diameter. Next is the threads per inch value, and is followed with the corresponding thread length. For instance, a #8-32 x ¼” Screw has a thread diameter of 0.164” (#8), 32 threads per inch, and a thread length of 0.25”.

The set screw is different to the regular screw because it does not have a “head.” The set screw comes in one size with two different heads, #8-32 x 0.125” Star Drive. These set screws come frequently in Shaft Collars, Clamping Shaft Collars, and can be screwed into standoffs.

Screws are available in various lengths including:

• #6-32 x ¼” and #6-32 x ½”
• #8-32 x ¼” through #8-32 x 2”.
• #6-32 x ½”, #8-32 x ¼”, and #8-32 x ½”

Locking Screws. Locking Screws have a nylon coating on a part of the thread which helps keep them from loosening.

V5 Smart Motors and all standard VEX nuts and standoffs

• #8-32 Star Drive Screw Material: Alloy Steel
  • SAE Grade 8 Screws
  • 150,000 PSI Tensile Strength
  • Designed to withstand a great amount of torque, which allows builders to truly "lock down" their mechanisms
  • Compatible with V5 Smart Motors and all standard VEX nuts and standoffs

V5 Smart Motors and all standard VEX nuts and standoffs

• #8-32 Hex Drive Screw Material: High Strength Stainless Steel with no finish
  • Compatible with V5 Smart Motors and all standard VEX nuts and standoffs
  • #8-32 Locking Screws
    • Have thread locker applied on their threads
    • The thread locker will help hold the screw in position
      • Can be used approximately 10-15 times and still retain a firm lock
      • Provide similar functionality to VEX Nylock Nuts

Use for VEX Cortex Motors and Servos only

• #6-32 Screws Material: High Strength Stainless Steel with no finish
  • Compatible with 393 Motors and Servos
  • #6-32 Locking Screws
  • Have thread locker applied on their threads
  • Thread locker will help hold the screw in position
    • Can be used approximately 10-15 times and still retain a firm lock
    • Provide similar functionality to VEX Nylock Nuts

All standard VEX nuts and standoffs

• Shoulder Screw Material: High Strength Stainless Steel with no finish
  • Compatible with all standard VEX nuts and standoffs
  • Make low-slop pivots in VEX metal
  • Designed to fit snugly in a VEX square hole and allows several layers of metal to pivot
    • 0.176" diameter x 0.20" long shoulder
    • 3/32" VEX Hex Key Drive

All standard VEX nuts and standoffs

• Thumbscrew Material: Plastic
  • Compatible with all standard VEX nuts and standoffs
  • The same size (#8-32) as standard VEX screws, only they have a 0.428" diameter knurled head so they can be tightened or loosened by hand
  • Great for applications where a screw will be inserted or removed multiple times, such as robot access panels or battery mounts. Or, in a situation where tools are not preferred to be used, such as certain education settings.