MAXX™ SELF DRILL™ DURABLE HEAD DESIGN
- 5/16 Cupped HWH with Encapsulated UV Resistant EPDM Washer
- Good Atmospheric and Chemical Corrosion Resistance
- Outstanding coating adhesion, vibration attenuation, damping capacity and ductility
- Superb aesthetic appearance – Positive Seal at Any Angle
- No Distortion Maximum Pull Over Strength – Cupped head design protects the washer from UV damage.