Description
Running a nut down a long stud with a fixed ring means lifting and refitting the wrench on every swing. The Snap-on QYBOERM24A box end head avoids that with a ratcheting 12-point ring. It fits a 24 mm hex on a Y-shank torque wrench body, so one tool can spin the nut down and then apply the final torque.
Key data for the QYBOERM24A
- Opening: 24 mm, 12-point, ratcheting box end.
- Shank: Y (0.560 in).
- Outside diameter: 46.5 mm.
- Head depth: 15.5 mm.
- Fastener center to retaining pin: 3.0 in (QYBOER series).
Where a 24 mm ratcheting ring earns its place
Under ISO standards, 24 mm is the usual hex size for M16 bolts and nuts. Those sizes turn up on machine bases, pump mounts and structural brackets. The QYBOERM24A ratcheting ring helps most when the thread is long or the swing angle is short. Meanwhile, the 12-point opening lets you re-engage the hex in small steps.
Choosing the Snap-on QYBOERM24A box end head or its J twin
Snap-on also lists a QJBOERM24A, with the same 24 mm ring on a J shank and 2.50 in spacing. Pick the Y version when your target torque calls for a Y body, such as the QD3IN200B or a QC3P200 preset body. Pick the J version for the lighter J bodies instead. In both cases, ask Lost in HCM for the head rating, because Snap-on’s table does not print one.
Clearance check
The Snap-on QYBOERM24A box end head measures 46.5 mm across and 15.5 mm deep. So measure the space around the nut before you order, especially near flanges, ribs or welded gussets.
Looking after the QYBOERM24A
Keep the ratchet clean and dry, and blow out grit after dusty work. Also stay within the rated capacity of the body. Finally, send the body for periodic recalibration, as Snap-on advises for its torque tools.
Order the Snap-on QYBOERM24A box end head
SMK Vietnam lists this head for Lost in HCM, which supplies it and sends the quote. Give them your body model and the joint torque, and they can confirm the fit. Then get a QYBOERM24A quote from Lost in HCM. You can also explore more interchangeable heads or contact SMK Vietnam.
QYBOERM24A FAQ
Which bolt size uses a 24 mm hex?
Under ISO metric standards, 24 mm is the usual hex for M16 bolts and nuts. Always check the drawing, though, because some parts differ.
Is there a J-shank version?
Yes. Snap-on lists the QJBOERM24A, a 24 mm ratcheting box end head with a J shank and 2.50 in spacing.
What torque rating does it carry?
Snap-on’s ratcheting box end table shows no rating, so we do not state one. Lost in HCM can confirm it when they quote.
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