Description
On 1/2 in hydraulic tube, a -8 O-ring face seal nut usually measures 15/16 in across the flats. On a crowded valve bank, that nut may take many short strokes to run down. The Snap-on RTWH60Y flare nut head ratchets on it through a slotted 12-point ring. It plugs into a Y-shank (0.560 in) body, so the final signal still comes from a calibrated wrench.
RTWH60Y versus the RTWH60YSL catalog entry
The partner listing gives the RTWH60Y a 15/16 in size and a Y shank. CAT1500i, however, prints the Y-column part at that size as the RTWH60YSL, with SL letters. So we treat the two numbers as close relatives, not as proven twins. The listing also says the heads follow Boeing ST2599, and that metric sizes come on special order. Lost in HCM confirms which suffix it can ship.
Why the Snap-on RTWH60Y flare nut head rides on a Y body
In the ratcheting table, the J column stops at 7/8 in with the RTWH56JSL. As a result, every ratcheting size from 15/16 in upward sits on the Y shank. Snap-on lists 4.43 in from the retaining pin to the fastener center for RTWHY heads, while solid QYRX heads sit at 3.00 in.
- CTECH2Y100A ControlTech, 5-100 ft-lb, with a built-in factor for head lengths.
- CTECHYM1200, also 5-100 ft-lb on a Y shank.
- QC3P150 preset, 30-150 ft-lb, locked to a single repeat setting.
- QD3IN200B dual scale, 40-200 N·m.
The ControlTech bodies handle the longer reach through that stored factor. QD heads, by contrast, assume a fixed pin spacing. So ask Lost in HCM for Snap-on’s setting method before you pair the RTWH60Y with a QC or QD body.
Solid 15/16 in options beside the RTWH60Y
| Head | Type | Shank | Printed limit |
|---|---|---|---|
| RTWH60Y | Ratcheting 12-point | Y | None published |
| QYRXS30A | Solid 6-point | Y | 146 ft-lb |
| QYRX30A | Solid 12-point | Y | 146 ft-lb |
| QJRXS30A | Solid 6-point | J | Sources differ |
Snap-on prints no maximum torque for its ratcheting flare heads. Therefore the RTWH60Y shines during run-down and repeat cycles, such as flushing and leak tests. For a firm final value, a solid Y ring with a printed limit is the safer pick.
Daily checks on the Snap-on RTWH60Y flare nut head
- Work the ratchet by hand and listen for an even click.
- Look along the slot edges for spread or burrs.
- Wipe oil off the shank before it goes into the body.
- Keep it in a fitted tray, away from heavier heads.
Also never use the Snap-on RTWH60Y flare nut head to free a seized nut, since Snap-on warns against that for its interchangeable heads.
RTWH60Y supply and quotes for Vietnam plants
SMK Vietnam shows this head as a partner listing, while Lost in HCM supplies it and writes the quote. Send your Y body model, the fitting size and the target value. With those three details ready, open the RTWH60Y page at Lost in HCM and ask for a price. You can also compare sizes under torque wrench heads and adaptors or contact SMK Vietnam.
RTWH60Y suffix, fit and rating
Is the RTWH60Y the same part as the RTWH60YSL?
The size and shank agree, but CAT1500i prints only the SL number. So Lost in HCM checks the exact part before it quotes.
Can the RTWH60Y turn a 24 mm nut?
No. Its 15/16 in opening measures 23.81 mm, a little under 24 mm, so the ring will not seat on that hex.
Which solid head gives a printed limit at 15/16 in?
The QYRXS30A and the QYRX30A. CAT1500i rates both Y heads at 146 ft-lb.
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