Description
M24 bolts anchor motors, pump skids and machine bases, and ISO gives them a 36 mm hex. The Snap-on QXXM36A box end head fits that hex with a closed 12-point ring on the X shank. It is also the largest metric ring that Snap-on’s brochure lists for X bodies, so it closes out the X set.
QXXM36A size sheet
| Opening | 36 mm, closed 12-point ring |
|---|---|
| Shank | X (0.735 in) |
| Outside diameter | 53 mm |
| Head depth | 22 mm |
| Pin to fastener center | 4.50 in (QXXM series) |
| Finish | Industrial (partner listing) |
Snap-on’s UK brochure and the partner listing print the same width and depth. Plan for about 26.5 mm of room from the bolt center to the nearest face. That is a modest margin for a QXXM36A on an M24 bolt row.
X wrench bodies for the Snap-on QXXM36A box end head
- QC4P300 preset, 60-300 ft-lb, 27 in long, for one repeated value.
- QD3IN350A dual scale, 59-251 ft-lb (70-350 N·m).
- CTECH3X250A ControlTech, 12.5-250 ft-lb, with a stored head-length factor and memory for 1,500 readings.
The QD3IN350A reads true with this head, because Snap-on sizes QD heads to a fixed pin spacing. The sources disagree on the head’s own ceiling, however, so get that figure from Lost in HCM. After that, keep every setting at or below it.
Choosing the shank for a 36 mm hex
The 36 mm ring also comes on Y and Z shanks, as the QYXM36A and the QZXM36A. All three share one width and depth in the brochure. So the decision rests on torque and tool length. A Y body stays short but tops out lower. A Z body reaches far higher, yet it is long and heavy to swing. Therefore the Snap-on QXXM36A box end head suits mid-range M24 values where a 27 in tool still fits the space.
Safe pulls with the Snap-on QXXM36A box end head
Big bolts tempt people to use the torque wrench as a breaker bar. Snap-on warns against that, so free seized bolts with a separate tool. Next, seat the QXXM36A fully on the hex and pull with a smooth, steady motion. Then stop at the signal instead of adding a final tug. Finally, wipe oil off the ring and the shank before storage.
QXXM36A supply and quotes
Lost in HCM supplies this head and writes each quote, and SMK Vietnam lists it for that partner. Send your X body model and the M24 joint value. After that, ask Lost in HCM for QXXM36A pricing through its product page. Other rings sit under torque wrench heads and adaptors, or you can contact SMK Vietnam for help.
Buying questions on the QXXM36A
Is the QXXM36A the largest metric X ring?
Yes, in Snap-on’s UK brochure. Its metric 12-point box end table ends at 36 mm.
Will it fit an M24 nut?
Yes for ISO hardware, which uses a 36 mm hex. Still, measure older parts before you order.
How long is a typical X body?
The QC4P300 preset measures 27 in, and the CTECH3X250A about 24 in. So check the swing space first.
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