Description
Sixteen millimeters is the ISO hex size for M10 bolts, one of the busiest sizes on any factory floor. The Snap-on QYXM16A box end head puts a 12-point ring of that size on a Y-shank body. As a result, a team with Y-shank wrenches can torque M10 hardware in tight spots without a change of body.
QYXM16A sizes and spacing
| Opening | 16 mm, 12-point |
|---|---|
| Shank | Y (0.560 in) |
| Outside diameter | 24 mm |
| Head depth | 10 mm |
| Fastener center to retaining pin | 3.00 in (QYXM series) |
J or Y? Picking the shank for the Snap-on QYXM16A box end head
Snap-on makes the 16 mm ring in both J and Y shank. The J model, QJXM16A, rides on light bodies that stop near 75 ft-lb. The Y model reaches the heavier Y bodies, so it covers firmer M10 specs with more margin. Choose by the body you already own, then by the joint value. A Y head also keeps one head set across a Y bench, which makes kitting simpler. Snap-on documents list different ratings for this head, so ask Lost in HCM to confirm the limit.
Y bodies that take it
- QD3IN200B dual-range body, 37-140 ft-lb.
- QC3P150 preset body, 30-150 ft-lb.
- QC3P200 preset body, 40-200 ft-lb.
- CTECH2Y100A ControlTech body, 5-100 ft-lb.
The QYXM16A keeps the standard 3.00 in Y spacing. Therefore the QD3IN200B reads its scale directly, with no length math.
Solid ring or ratcheting ring?
A solid ring like the QYXM16A stays slim at 10 mm deep, so it slips under guards and brackets. On long studs, however, a ratchet saves time. For that job, Snap-on’s catalog lists the QYBOERM16A, a 16 mm ratcheting box end head in Y shank. Keep the solid head for cramped final torque, and use the ratcheting one for nuts that need many turns.
Typical M10 jobs for the Snap-on QYXM16A box end head
- Motor and pump base bolts in plant utilities.
- Guard and frame brackets on packaging and assembly lines.
- Small flange and cover bolts on compressors and chillers.
Note that DIN-pattern M10 bolts use 17 mm, so measure the flats first.
Pricing and supply for the QYXM16A
Lost in HCM supplies the Snap-on QYXM16A box end head and prepares the quote, while SMK Vietnam lists it as a partner item. Name your Y-shank body when you ask, so the fit is clear. Then ask Lost in HCM for QYXM16A pricing. You can also see more torque wrench heads or contact SMK Vietnam.
Common QYXM16A queries
Will it fit a 17 mm DIN bolt?
No. It opens to 16 mm, which matches ISO M10 hex bolts. DIN M10 bolts need a 17 mm head.
Can the QYXM16A ratchet on a long stud?
No. It is a solid 12-point ring. Snap-on lists the QYBOERM16A if you need a ratcheting 16 mm Y head.
Why does this page skip the torque rating?
Snap-on sources give different figures, so we do not print one. Lost in HCM can state the figure in its quote.
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