Description
Metric machines often carry 17 mm tube nuts on their coolant, air and gauge lines. The Snap-on QJRXSM17A flare nut head gives a J-shank click wrench a slotted 6-point grip at that size. So you can bring the fitting to a set torque while the line stays connected.
QJRXSM17A data from the Snap-on catalog
| Opening | 17 mm, 6-point, slotted |
|---|---|
| Shank | J (0.425 in) |
| Max recommended working torque | 60 ft-lb (about 81 N·m) |
| Outside diameter | 29 mm |
| Head depth | 11 mm |
| Pin to fastener center | 2.50 in (QJRXSM series) |
Snap-on QJRXSM17A flare nut head: J or Y shank?
At 17 mm, Snap-on offers this ring on two shanks. The J version tops out at 60 ft-lb. By contrast, the Y-shank QYRXSM17A carries 83 ft-lb. So read the fitting spec first. When it sits at 60 ft-lb or below, the lighter J setup does the job. When it falls between 60 and 83 ft-lb, move to the Y head and a Y body instead.
J-shank bodies that pair with the QJRXSM17A
The QD2IN50A dual-range body stops at 50 N·m, so every setting on its scale stays under the head limit. Meanwhile, the QD2IN100A and the QC2I75 both run past 60 ft-lb. With those two, cap the setting at 60 ft-lb, or about 81 N·m. Because the QJRXSM17A keeps the 2.50 in J spacing, the QD bodies read directly with no length math.
Sizes around the QJRXSM17A
Check the nut with a caliper before you order. One step down, the 16 mm QJRXSM16A measures 27 mm across. One step up, the 18 mm QJRXSM18A grows to 30 mm. All three J heads share the 60 ft-lb limit, so the nut alone decides. Also watch for inch fittings. For example, an 11/16 in nut measures about 17.5 mm, and Snap-on covers it with the inch QJRXS22A.
Shop habits that protect the QJRXSM17A
Brush grit and thread sealant out of the slot after each job, because debris stops the ring from seating. Then look at the jaw ends for spread. A spread jaw slips and can round a soft brass nut. Finally, keep the wrench body on Snap-on’s periodic recalibration cycle.
How to order the Snap-on QJRXSM17A flare nut head
Lost in HCM supplies this head and prepares the quote, while SMK Vietnam lists it as a partner product. Send your body model and the fitting torque with the request. Then request a QJRXSM17A quote from Lost in HCM. You can also browse torque wrench heads and adaptors, compare J-shank torque wrenches, or contact SMK Vietnam.
QJRXSM17A FAQ
Can I set the QJRXSM17A above 60 ft-lb?
No. Snap-on gives 60 ft-lb, about 81 N·m, as its maximum recommended working torque. For more, the Y-shank QYRXSM17A carries 83 ft-lb.
How much room does the head need around the nut?
The catalog lists a 29 mm outside diameter and an 11 mm head depth.
Will it fit a Y-shank body?
No. It has a J (0.425 in) shank, so it needs a J body.
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