Description
A 15 mm hex does not come from a standard ISO 4032 or DIN 934 nut, yet it shows up on fittings and maker-specific parts. The Snap-on IZ15IR14X18 insert ring fits that size on the larger 14 x 18 mm IZO/ISO fitting. So a plant that runs heavy IZO bodies can still close a ring around a 15 mm nut.
15 mm across the IZO table
| Fitting | Open end | Ring |
|---|---|---|
| 9 x 12 mm | IZ15OE9X12 | IZ15IR9X12 |
| 14 x 18 mm | IZ15OE14X18 | IZ15IR14X18 |
So the receiver on your wrench picks the row, and the joint picks the column. The IZ15IR14X18 suits the 14 x 18 row when you can reach the nut from above.
Should a 15 mm joint use the Snap-on IZ15IR14X18 insert ring?
Pick this ring when your station already uses the CTECHBN340A for larger bolts. One body then covers the 15 mm nut as well, so the torque record stays on one tool. However, check the value first. The body reads 17.0 to 340.0 N·m, and Snap-on calibrates from 20 to 100% of full scale. That band starts at 68 N·m, so lighter 15 mm joints belong on a 9 x 12 body with the IZ15IR9X12.
Ring benefits for the IZ15IR14X18
A closed ring wraps the full hex, while an open jaw bears on two flats. As a result, the ring treats plated or worn corners more gently. It also resists slipping off during a slow, steady pull. Still, it needs a clear path over the nut, so a tube nut calls for the IZ15OE14X18.
Care routine for the Snap-on IZ15IR14X18 insert ring
Before each swap, wipe the shank so the lock seats with no play. Then select the head-length factor that the ControlTech body stores for this ring. During the pull, keep the wrench square to the bolt. Finally, never use it to break a nut loose, and keep the body on a recalibration plan as Snap-on advises.
Quotes via Lost in HCM
SMK Vietnam lists the IZ15IR14X18, and Lost in HCM supplies it and sets the price. Share the receiver size, the body model and the torque you need. When you are ready, open an IZ15IR14X18 quote with Lost in HCM. Other sizes sit in torque wrench heads and adaptors, and SMK Vietnam can answer fit questions.
IZ15IR14X18 checks before purchase
Is 15 mm a standard metric nut size?
Not in ISO 4032 or DIN 934, so measure the part on your machine before you order the IZ15IR14X18.
Can I use it on a CTECHAN135A?
No. That body takes 9 x 12 mm inserts, so pair it with the IZ15IR9X12 instead.
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