Pin retainer for long insulated pins
The retainer that clamps the long 608-series pins into deep-wall and slide-hammer electrodes.
Fitment
- Holds the 608 contact pin and the 608/001 contact pin
- Used with the 21-E deep wall probe
- Used with the 21-ET deep wall probe with tapped handle
- Used with the 18-ES slide hammer electrode
Specifications
| Part number | 305RET-0021 |
|---|---|
| Function | Holds 608 and 608/001 pins |
| Sold as | Each |
This is not the hammer electrode retainer
If you are replacing pin retainers on a 26-ES, 26-ED or 22-E, you want the 632 retainer instead. The two are not interchangeable — this one is sized for the longer 608-series pins.
Hand tighten only. Over-tightening strips the thread.
Frequently asked questions
How is this different from the standard retainer?
It is dimensioned for the long 608 series pins used in deep-wall and slide-hammer work. A standard retainer will not clamp them correctly.
How tight should it be?
Hand tight. Delmhorst specify hand tightening throughout — a retainer done up with pliers distorts and then grips inconsistently, which shows up as unstable readings.
When should I replace it?
When the pin moves under load, or when the thread no longer holds hand-tight. Retainers are consumable and cheap relative to the readings they affect.
Not sure which part suits your meter? Tell us the model and what you are testing and we will confirm the right one before you order.
