Description
Small tube nuts on pneumatic panels, lube lines and forklift brakes need low torque and a gentle grip. The Snap-on RTWH36J flare nut head brings a ratchet to that 9/16 in size. Its slotted 12-point ring drops over the tube and then ratchets on the nut. Because it fits J-shank (0.425 in) bodies, you can pair it with a light wrench whose scale suits small values.
Confirm RTWH36J or RTWH36JSL
The partner listing gives this head a 9/16 in size and a J shank. In CAT1500i, the 9/16 in ratchets appear as the RTWH36JSL for J bodies and the RTWH36YSL for Y bodies. No plain RTWH36J shows up in that table. So ask Lost in HCM to confirm the code it will supply before you raise a purchase order.
J wrench scales that suit the Snap-on RTWH36J flare nut head
| J body | Type | Range (CAT1500i) |
|---|---|---|
| CTECH1J240A | ControlTech electronic | 12-240 in-lb |
| QC1I200 | Adjustable click | 40-200 in-lb |
| QC2I75 | Adjustable click | 5-75 ft-lb |
| QD2IN50A | Dual scale | 10-50 N·m |
Small line nuts often sit low on these scales. So match the body to the spec of each line, and keep QC settings above 20% of full scale, since Snap-on quotes their accuracy from that point. The ControlTech also applies a stored factor for head length, which matters with a ratchet.
Reach of the Snap-on RTWH36J flare nut head
CAT1500i puts ratcheting J heads at 3.50 in from pin to nut center, while standard J flare rings sit at 2.50 in. If the RTWH36J matches the catalog J ratchet, that extra inch changes what a click body reads at the nut. Therefore get Snap-on’s setting method from Lost in HCM before you run the Snap-on RTWH36J flare nut head on a QC or QD body.
Solid 9/16 in rings when a rating matters
Snap-on prints no maximum torque for ratcheting flare heads. At 9/16 in, however, the solid QYRXS18A and QYRX18A rings carry a 67 ft-lb rating on a Y body. A J-shank 6-point ring, the QJRXS18A, also exists. So when a spec needs a printed ceiling, a solid ring may finish the joint, while the Snap-on RTWH36J flare nut head handles run-down.
Getting an RTWH36J quote
SMK Vietnam lists the RTWH36J for Lost in HCM, which supplies the head and handles the quote. To start, request a quote from Lost in HCM with your J body model. For related sizes, see torque wrench heads and adaptors, or contact SMK Vietnam.
RTWH36J fit and supply FAQ
Which J body suits very light line nuts?
The CTECH1J240A reads from 12 in-lb and keeps a time-stamped record. So it suits small fittings that need proof of each value.
Is there a Y version at 9/16 in?
Yes. CAT1500i lists the RTWH36YSL, which fits Y bodies and sits 4.43 in from pin to nut.
What should I send with my quote request?
Send the body model, the nut size and the spec. Lost in HCM then confirms the part code and prepares the price.
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