#1 Square Drive Bit 25mm

The Square Drive Driver Bits is a specialist hardened driver bit for Square Drive (T17), Torx, and Post Torx security screws. Suited to professional installation and long-service applications in marine, coastal, and industrial environments.

Where this product is used

• Marine and coastal construction requiring superior corrosion resistance.
• Architectural metalwork and outdoor structures in harsh environments.
• Industrial applications where standard zinc-plated fasteners would corrode.

Key specifications

Selecting the right option

For marine, coastal, and outdoor applications, always specify 316 (A4) grade for maximum corrosion resistance. 304 (A2) is suitable for indoor and sheltered outdoor use. Pair stainless fasteners with stainless washers and nuts to avoid galvanic corrosion between dissimilar metals.