Description
M16 is the workhorse size on motor bases, gearbox housings and conveyor frames. Its nuts and bolt heads measure 24 mm under both ISO 4032 and DIN 934. The Snap-on IZ24IR14X18 insert ring wraps that hex completely and locks into a 14 x 18 mm IZO/ISO receiver. So one electronic body can tighten M16 joints with full contact on every flat.
A 24 mm ring means a 14 x 18 receiver
Snap-on’s 9 x 12 rings end at 19 mm. Any ring above that size, the IZ24IR14X18 included, therefore needs a 14 x 18 body. In CAT1500i, the IZ22IR14X18 sits one step below and the IZ27IR14X18 one step above. Meanwhile, the open-end twin, the IZ24OE14X18, covers the same hex from the side.
The CTECHBN340A and the Snap-on IZ24IR14X18 insert ring
| Body | Fitting | Range | Length without head |
|---|---|---|---|
| CTECHBN340A | 14 x 18 mm | 17.0-340.0 N·m (12.5-250.8 ft-lb) | 607 mm |
Snap-on prints no torque rating for its insert rings, so this body sets the limit. In addition, Snap-on calibrates from 20 to 100% of full scale. On this body, that window runs from about 68 to 340 N·m. Make sure your M16 value lands inside it. The body also holds 50 presets, so the M16 value can sit beside other joints on one station.
A gearbox housing job
Picture a gearbox with eight M16 housing bolts tightened in a cross pattern. A closed ring suits exposed heads like these, because it loads all flats and resists slipping. So the operator runs the pattern with the Snap-on IZ24IR14X18 insert ring, while the body stores each result for download. If a stud or pipe blocks the ring, the IZ24OE14X18 takes over.
Looking after the Snap-on IZ24IR14X18 insert ring
- Wipe the rectangular shank and the receiver before each swap.
- Seat the ring fully over the hex, not just on the corners.
- Select this ring’s head-length factor on the ControlTech body.
- Never use it to free a seized bolt.
Getting a price on the IZ24IR14X18 ring
SMK Vietnam lists this ring for its partner Lost in HCM, which supplies the IZ24IR14X18 and handles the quote. Mention your body model and the M16 torque value. Finally, submit the IZ24IR14X18 request on the Lost in HCM page. Neighbor rings sit under torque wrench heads and adaptors, or you can contact SMK Vietnam.
M16 ring questions on the IZ24IR14X18
Is there a 24 mm ring for 9 x 12 wrenches?
No. Snap-on’s 9 x 12 insert rings stop at 19 mm, so the IZ24IR14X18 needs a 14 x 18 body.
Does one 24 mm ring cover ISO and DIN M16 hardware?
Yes. Both ISO 4032 and DIN 934 give M16 a 24 mm hex.
Can the IZ24IR14X18 go on a QC or QD click body?
No. Those bodies take round J, Y, X or Z shanks, not the rectangular 14 x 18 fitting.
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