Plastic screw sleeve used in soft materials such as balsa, EPP, polystyrene, styrodur etc ...
Dimensions:
- total height: 8 mm.
- inner diameter: 3 mm.
- outer diameter of the flange: 12.8 mm.
- diameter of the groove under the screw head: 6.2 mm.
- recess depth: 1.2 mm.
- color: yellow or white (depending on delivery)