Snap-on QYXM24A Box End Head, 24 mm 12-Point Ring, Y Shank (0.560″)

Description

A 24 mm hex is the ISO and DIN size for M16 nuts and bolts. As a result, it turns up on pump bases, gear housings and frame joints. The Snap-on QYXM24A box end head lets a Y-shank torque wrench grip that hex on all twelve points. Its ring is 35 mm across and 15 mm deep, so it also fits beside a flange or a rib.

Four shanks share the 24 mm size

Snap-on’s UK torque brochure lists a 24 mm ring for every shank, from J to Z. So the shank you pick follows the body you own, not the nut.

The QYXM24A sits in the middle of that ladder. For example, it suits a plant that already runs Y bodies for mid-range work, while the Z ring serves heavy bodies.

Why the Snap-on QYXM24A box end head shows no single rating here

The partner listing and the UK brochure print different maximum working torques for this ring. We cannot tell which figure is current, so this page states neither. Lost in HCM can confirm the limit with your quote. Even so, the gap rarely changes the body choice, because both figures sit above most Y scales:

• QD3IN200B, 37-140 ft-lb: every setting stays under both figures.
• QC3P150 preset, 30-150 ft-lb: also below both.
• CTECH2Y100A ControlTech, 5-100 ft-lb: well inside either limit.
• QC3P200 preset, 40-200 ft-lb: its top end can pass the lower figure, so cap it once the QYXM24A limit is confirmed.

Clearance and reach of the QYXM24A

The ring measures 35 mm across, so allow about 17.5 mm from the bolt center to the nearest wall. Its 15 mm depth also clears a low lip or a raised washer face. In addition, the Y series holds the fastener 3.00 in from the retaining pin. Snap-on says its QD dual-range bodies need no adjustment math, because their heads share a consistent pin-to-fastener size. For any other body, check the manual before the first QYXM24A job.

A pump skid job for the Snap-on QYXM24A box end head

Picture a process pump on a steel skid, held down by M16 nuts beside the volute. A socket cannot pass the casting rib, yet a ring can slide in from the side. So a fitter mounts the Snap-on QYXM24A box end head on a QD3IN200B and sets the pump maker’s value. Then the closed ring pulls each nut on all twelve points, without the spread an open jaw can show.

Getting the 24 mm Y ring quoted

SMK Vietnam lists this ring for its partner Lost in HCM, which supplies it and prepares the price. Name your Y body and the joint value, and ask for the confirmed limit. With those details in hand, request a QYXM24A quote from Lost in HCM for your pump or frame work. Other rings sit under torque wrench heads and adaptors, or you can contact SMK Vietnam with a fit question.

Fit and limit questions on the QYXM24A

Will the QYXM24A lock into an X-shank body?

No. It fits only Y (0.560 in) receivers. For an X body, the 24 mm ring is the QXXM24A.

What working limit should I plan for on the QYXM24A?

Snap-on sources disagree on it, so Lost in HCM confirms the figure with the quote. Until then, keep the setting at or under 150 ft-lb, which sits below both printed values.