Description
A -8 JIC swivel nut on 1/2 in tube often has a 7/8 in hex and a firm torque spec. The Snap-on QYRXS28A flare nut head grips that nut on all six flats from a Y-shank torque body. In addition, its Snap-on limit is 133 ft-lb, roughly 180 N·m. As a result, it can finish joints that a ratchet head should only run down.
Two catalogs, one QYRXS28A rating
CAT1500i prints 133 ft-lb for this ring, and the UK brochure prints 1,600 in-lb. Those match within rounding, and the partner listing agrees. The ring measures 1-13/32 in across, while CAT1500i gives a 9/16 in head depth. QYRXS heads also hold the nut 3.00 in from the retaining pin.
Which Y bodies stay under 133 ft-lb
- CTECH2Y100A, 5-100 ft-lb: the whole scale sits under the limit.
- QD3IN200B, 37-140 ft-lb: the top 7 ft-lb passes it, so block that band.
- QC3P150 preset, 30-150 ft-lb: cap the preset at 133 ft-lb.
- QC3P200 preset, 40-200 ft-lb: cap it well below its top.
Mark the cap on the tool tag, so the next shift sees it before setting a value on the QYRXS28A.
Snap-on QYRXS28A flare nut head or the RTWH56YSL ratchet
Snap-on also makes a 7/8 in Y ratchet, the RTWH56YSL. It runs nuts down quickly, but CAT1500i prints no limit for it. It also sits 4.43 in from the pin, versus 3.00 in for the QYRXS28A. Therefore the solid ring is the better tool for the final, recorded pull. Some teams carry both and swap at the last stage.
Hydraulic press lines and the Snap-on QYRXS28A flare nut head
Picture a hydraulic press with -8 lines between the pump, the valve stack and the cylinder. Also, several nuts sit under the top crown, where a socket cannot pass the tube. A fitter slips the QYRXS28A onto each nut and pulls a QD3IN200B to the press maker’s value. Then the 6-point grip spreads the load, so the steel nut keeps sharp corners. Measure each hex first, because some -8 nuts use a different size.
Sourcing the QYRXS28A in Vietnam
SMK Vietnam lists the QYRXS28A as a Lost in HCM product, and Lost in HCM handles supply and the quote. Give the team your Y body, the tube size and the joint value. When the details are ready, request a QYRXS28A quote from Lost in HCM. Other Y rings sit under torque wrench heads and adaptors, or contact SMK Vietnam if you need help with fit.
QYRXS28A ordering FAQ
Is there a J-shank version of the QYRXS28A?
Yes, the QJRXS28A. However, Snap-on’s two catalogs print different limits for it, so ask Lost in HCM before you plan around it.
Can I use the QYRXS28A on a metric 22 mm hex?
Not well. 7/8 in equals 22.23 mm, which leaves play on a 22 mm hex.
How does the QYRXS28A rating read in N·m?
About 180 N·m, from Snap-on’s 133 ft-lb figure.
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