🔍 Key Concepts
• How sizes are expressed for machine bolts and screws (diameter and threads per inch)
• What kinds of items use fraction + dash + number (like 5/16-24) to describe their dimensions
• The difference between thread designations and sizes used for plates, pullers, and torch tips
💭 Think About
• Ask yourself: In what context have you seen numbers like 1/4-20, 3/8-16, or 5/16-24 used before?
• Which of the choices normally needs both a diameter (in inches) and a thread count per inch to be specified?
• Do steel plate gauges, pullers, or torch tips usually use a fraction followed by a dash and a number, or some other sizing system?
✅ Before You Answer
• Verify which item commonly uses two-part designations where the first part is a fractional inch size and the second part is a count (per inch).
• Check if plate gauges, puller sizes, or torch tips are normally listed with gauge numbers, model numbers, or orifice sizes instead of a "fraction-number" format.
• Make sure the choice you pick clearly relates to threads per inch rather than thickness, tool reach, or orifice opening.