- Fully hardened
- C1022 steel
- Bugle head
- Phillips recess
- Sharp piercing point
- Twin thread
Ideal for plsterboard, fibreboard and other insulation boards where these boards need to be fastened to wood or steel partitions.
Used extensively in partitioning and suspended ceiling industry.
Fine Thread: for fixing plasterboard to metal studs.
Black phospate is a decorative finish providing limited protection against corrosion. The phosphate creates an extra binding between plaster and screw. Black phosphate will withstand 48hr salt spray test. Black phosphate is not suitable for use with water based fillers.
