Specification:

Size: m7 x 20mm / m7x25mm
Material: 6al / 4v (tc4) titanium alloy, category 5
Wrench size: use 5mm allen wrench
Thread diameter: 7mm
Thread pitch: 1.0mm
Main diameter: 10mm
Head height: 6mm
Color: Titanium /Gold /Rainbow /Blue /Black /Green /Purple color