The 3490-130 Base with M8 Outer Thread contains:
• Base for ball prism Ø 1.5″ (38.1mm) with M8 external thread
• Magnetic holding force 3kg, with M8 stainless steel thread
• Distance from base bottom to ball center: 50mm (without thread)
• With protective plate Ø 40mm, anodized body
• Available thread connections: 1/4″ x 8 mm, M8 x 8 mm, 5/8″ x 11 mm
All bases are shipped including cover plate for protection against dirt.