• Heat treated and hardened steel
• Type 17 point starts quickly without "walking" and reduces the need for pre-drilling
• Deep, wide, sharp threads with spiral notches cut cleanly and easily and provide maximum holding power
• Under head cutting nibs cleanly countersink the screw flush into wood
• Removable and reusable
• Use in hard or soft wood, chipboard and other tough materials
• Clear plastic jar with screw on lid