Description
Lock nuts and thread-locked screws resist turning even before they seat. Engineers call that resistance prevailing torque, and they often need to measure it. The Snap-on TER602FUAC torque wrench suits the job with a precise dial and a follow-up pointer. It reads in US units and newton meters, and its name says it comes with a calibration certificate.
Measuring prevailing torque with a follow-up pointer
During a prevailing torque check, the nut turns on the thread with no clamp load yet. The needle rises and wavers as the locking feature drags. A follow-up pointer captures the highest value from that run. So the Snap-on TER602FUAC torque wrench lets the engineer read the peak afterward, rather than chase a moving needle. Reset the pointer before each test, so the next result starts clean.
Precise 1% grade on the Snap-on TER602FUAC torque wrench
Lost in HCM’s listing places this model in its Combination US/Newton Meter Reading/Precise 1% Accuracy group. Snap-on’s tables define Precise models as within 1% of reading, from 20% of full scale to full scale, in both directions. Prevailing torque values often run small next to the final tightening torque. Therefore choose a size that keeps those values above the bottom fifth of the dial.
Test benches that suit the TER602FUAC
- Lock nut qualification when you change a fastener supplier.
- Reuse checks on lock nuts after a service teardown.
- Engineering tests on thread-locking compounds.
- Final torque audits on joints that use locking hardware.
However, keep the TER602FUAC as a test tool. For line tightening, a click or electronic wrench works faster.
Range, drive and paperwork for the TER602FUAC
The source does not name a range or drive for this model. We also did not find the exact code in Snap-on’s public PDFs, so we do not print one here. Ask Lost in HCM to confirm the range, the drive and the details on the calibration certificate.
Care for a precision dial
Store the Snap-on TER602FUAC torque wrench in its case and keep it off the line. Also check that both pointers return to zero before a test series. Avoid overloads and drops, because either can shift a precise reading. Then book outside calibration on the cycle your lab or quality plan sets.
Sourcing the Snap-on TER602FUAC torque wrench
Lost in HCM, our supply partner, sources this Torqometer for buyers in Vietnam. To get a price, request a quote from Lost in HCM. Engineers can also browse more torque wrenches, visit snapon.com, or contact SMK Vietnam.
TER602FUAC prevailing torque FAQ
What is prevailing torque?
It is the torque needed to turn a lock nut or locked screw before it seats. The TER602FUAC can capture its peak.
Why choose the Precise 1% grade?
Small test values leave little margin, so a tighter grade helps. Snap-on states it from 20% of full scale upward.
What scales are on the dial?
It shows both US units and newton meters, per Lost in HCM’s listing.
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