Steel Pozi Countersunk Chipboard Screws ZYP

Pozi countersunk chipboard screws in zinc-yellow passivated (ZYP) finish are the standard self-tapping woodscrew for furniture-grade chipboard, MDF, and particleboard - the sharp twinthread profile bites aggressively into panel products where a traditional woodscrew would simply strip the material. At the DIY Hardware Store, our ZYP chipboard screws are available as singles and in packs for furniture assembly, kitchen unit installation, and general panel product joinery.

Chipboard and MDF have a fundamentally different structure to solid timber - rather than longitudinal grain fibres, they consist of compressed particles or fibres in resin binder. A standard woodscrew's thread is too coarse and the pitch too widely spaced to develop meaningful thread engagement in this material - the chipboard screw's finer, sharper twinthread is specifically designed to cut and engage with the compressed particle structure effectively without fracturing the material face. The countersunk head pulls flush cleanly without the material cracking around the recess.

  • Twinthread design for chipboard, MDF, and particleboard
  • Finer thread pitch engages compressed particle material effectively
  • Countersunk head pulls flush without face cracking
  • Zinc-yellow passivated finish for moderate corrosion resistance
  • Standard for flat-pack furniture and kitchen unit assembly
  • Available as singles in the most commonly used sizes