Snap-on QZXM50ADP Box End Head, 50 mm 12-Point Ring, Z Shank, Dual Pins

Description

M33 bolts and nuts carry a 50 mm hex under both ISO 4032 and DIN 934. For example, you meet them on crane bases, press frames and large pump skids. The Snap-on QZXM50ADP box end head brings a closed ring of that size to a Z-shank torque body. Lost in HCM lists it with a dual-pin Z shank, the largest shank in Snap-on’s interchangeable range.

Catalog status of the Snap-on QZXM50ADP box end head

However, we could not find the Snap-on QZXM50ADP box end head in either Snap-on source we use. The metric ring table in the UK torque brochure ends at 36 mm. Likewise, the CAT1500i head pages carry no metric box end table. So the 50 mm opening, Z shank and dual pins come only from the partner listing. For that reason, we show no rating, width or depth here. Please confirm every figure with Lost in HCM before you order.

Driving M33 joints with a Z body

Snap-on’s QD4IN800A reads 150-800 N·m, or 129-572 ft-lb, on a 41-1/2 in tube. Because it weighs 11.14 lb, plan for two hands and a firm stance. Also, its catalog table carries a note about dual-pin heads. Ask Lost in HCM to confirm that your body and the QZXM50ADP match. Meanwhile, the electronic CTECH4Z600A is the other Z choice, reading 30-600 ft-lb on a 44.8 in body. Some M33 specs run higher than any hand wrench, though. In that case, a torque multiplier may suit the joint better.

Ring or open jaw at 50 mm

Snap-on’s CAT1500i does list a 50 mm open end head, the QZOM50ADP. It also has dual pins, and the catalog gives it a 480 ft-lb rating. An open jaw slips over a line or rod from the side, which a ring cannot do. On the other hand, a closed ring holds all six corners, so it suits a bare bolt head better. Pick the QZXM50ADP for exposed hex joints, and the jaw for parts you cannot reach from above.

Ordering a 50 mm Z ring through Lost in HCM

SMK Vietnam lists the QZXM50ADP for its partner, and Lost in HCM supplies it and prepares each price. When you request a quote from Lost in HCM, give the part number, your Z body and the M33 spec. Ask for the rating and size in writing, too. Other Z heads sit under torque wrench heads and adaptors, and you can contact SMK Vietnam with any question.

What buyers ask about the 50 mm Z ring

Does Snap-on publish a rating for the QZXM50ADP?

Not in CAT1500i or the UK brochure, which ends its metric ring table at 36 mm. Lost in HCM can confirm the figure.

Which hex size takes a 50 mm ring?

ISO 4032 and DIN 934 both give M33 bolts and nuts a 50 mm hex.

Is the QD4IN800A the right body for it?

It has a Z socket and a dual-pin note in Snap-on’s table. Even so, ask Lost in HCM to confirm the pin match for this head.