General description Timco's heavy section self-drilling screws are specifically designed for use with heavy section 12mm steel. These screws feature a hex head and a self-drilling tip, allowing for easy installation without the need to pre-drill holes. Technical specifications Size: 5.5 x 32mm Quantity: 100 screws Thread type: Fine self-tapping metric thread Maximum steel thickness: 12mm Other information Coating: Silver Ruspert, providing a durable corrosion-resistant finish Salt spray resistance: Over 1000 hours Manufactured to meet recognized industry standards and performance criteria