These 4mm thick quartz flame polished bangers feature a 14mm female joint and a 45-degree angle bucket. This banger nail is sure to make your piece look even better, and provide a smooth pull and more than satisfactory vapor. These 4mm thick quartz flame polished bangers feature a 14mm female joint and a 45-degree angle bucket. This banger nail is sure to make your piece look even better, and provide a smooth pull and more than satisfactory vapor.