Zoro Select
Zoro Select M12020.160.0150 Slotted Castle Nut M16x1.50 Class 4 Steel PK50
Metric M16 x 1.5 slotted castle nut, DIN 935 Class 4 steel, 24 mm hex, 19 mm height, pack of 50
- TypeNuts
- Slotted castle design enables positive locking with a cotter pin
- Metric M16 × 1.50 thread fits standard coarse-pitch fasteners
- Class 4 steel provides adequate strength for general-purpose assemblies
- DIN 935 dimensional standard ensures interchangeability across suppliers
- Pack of 50 pieces covers multiple maintenance or production tasks
Zoro Select M12020.160.0150 Slotted Castle Nut
This Zoro Select slotted castle nut is a metric Class 4 steel fastener supplied in a pack of 50. It suits maintenance and assembly tasks where a positive locking method is required. The right-hand thread and plain finish meet DIN 935 dimensional standards for general engineering use.
Upgrading from standard hex nuts without locking
The slotted castle design replaces plain nuts when vibration or rotation could loosen a joint. The jump is worth it when a drilled bolt or stud allows a split pin or wire to engage the slots, providing a mechanical lock that a nylon insert or serrated flange cannot.
M16 x 1.50 thread with 24 mm hex and 19 mm height
The 24 mm hex width allows standard spanner engagement while the 19 mm overall height provides sufficient slot depth for reliable pin retention. The pack of 50 supports repeated servicing or small production runs. The nut runs out when the application demands a higher material class, a different thread pitch or a self-locking feature without an external pin.
Highlights
- Slotted castle design enables positive locking with a cotter pin
- Metric M16 × 1.50 thread fits standard coarse-pitch fasteners
- Class 4 steel provides adequate strength for general-purpose assemblies
- DIN 935 dimensional standard ensures interchangeability across suppliers
- Pack of 50 pieces covers multiple maintenance or production tasks
Specifications
| Brand | ZORO SELECT |
|---|---|
| Type | Nuts |
Questions about this item
What spanner size fits the 24 mm hex on this M16×1.50 castle nut?
A 24 mm spanner or socket matches the standard hex width on each nut.
Which step is often missed when locking the slotted castle nut onto a drilled shaft?
After tightening to torque, align a slot with the drilled hole and insert a split pin or wire before bending the legs to secure it.
When should the split pin or locking wire be replaced on a DIN 935 slotted castle nut?
Replace the pin or wire whenever the nut is removed, if the legs show fatigue cracks, or at each scheduled inspection interval.
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