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Torque and Quality Check Vocabulary for Manufacturing Workers

Tightening a bolt sounds simple, but on an assembly line there are strict rules about exactly how tight — too loose or too tight can both be a problem. This vocabulary covers the torque and quality-check terms that show up constantly in work instructions.
Torque Specifications
- torque spec — the target number showing how tight a bolt needs to be.
- torque wrench — a tool used to tighten a bolt to its exact torque spec.
- calibrated — a tool that has been checked and adjusted to give an accurate reading.
Example: "Use a calibrated torque wrench and follow the torque spec."
Signaling a Correctly Tightened Bolt
- click — the sound a torque wrench makes once the bolt reaches the correct torque.
- snug — tight against the surface but not yet at full torque.
Example: "Tighten it until it's snug, then use the torque wrench until you hear the click."
Basic Verbs
- tighten
- loosen
- fastener — the general term for screws, bolts, and nuts (already covered earlier).
Short Example Sentences
- "Tighten the bolt to the torque spec."
- "Loosen this bolt first before you remove the part."
- "This fastener needs a calibrated torque wrench."
Try the Quiz
This torque vocabulary matters for making sure work meets the quality standard. Try the short quiz below to check what stuck.