M4 Aluminum Alloy Flat Knurled Thumb Screw Hand Grip Knob Bolts Head Ø12*H4
Specification:
Material: Aluminium Alloy
Surface Treatment: Anodized
Colour: Black / Silver / Golden / Green / Orange / Purple / Wine Red / Rose Red / Sky Blue / Royal Blue
Thread Diameter: M4 / 4mm
Thread Pitch = 0.7mm
Length: 15mm 20mm 25mm (not including the head)
Head Diameter: 12mm
Head Thickness: 4mm