- Threaded Pole Slugs
- 2.5mm Hex Head
- Fits standard size pole slugs only**
- Black plated SUM22(Eqv. 1213/1215)
- Set of 6
**When installed flush to the top of a standard height bobbin(3/8" (9.35mm), these will extend about 7/32" (5mm) below the bobbin. You will need either use thicker magnets or make(or enlarge existing) holes in the baseplate.