Most lab motor fasteners are metric and should be obtained by telling the TAs what size you need.

• A. True
• B. False
• C. Often
• D. Never

Answer: (A)

In lab settings, motor fasteners are generally metric. That means the threaded holes and the bolts that hold motors in place use metric sizes, so the most reliable way to get the right parts is to tell the TAs exactly what you need (for example, the diameter and thread pitch, plus length and head type). The TAs can pull the correct metric screws, nuts, and washers from the inventory, ensuring proper fit and avoiding cross-threading or mismatches. If you’re unsure, bring a quick measurement or the motor to show the TA so they can confirm the correct size and pitch. While there are some non-metric fasteners in older or specialized setups, the standard in most lab motors is metric.