--Shape: High shape.
--Standard: DIN 466.
--Material: Steel.
--Surface: Nickel plated/Black Zinc.
--All Threads Are Standard Metric Coarse.

M2
Thread Diameter - M2
Thread Pitch - 0.4mm
Head Diameter - 9mm
Knurled Head Length - 2mm
Shoulder Diameter - 4.5mm
Shoulder Length (High Type) - 3.3mm

M2.5
Thread Diameter - M2.5
Thread Pitch - 0.45mm
Head Diameter - 11mm
Knurled Head Length - 2.5mm
Shoulder Diameter - 5mm
Shoulder Length (High Type) - 4mm

M3
Thread Diameter - M3
Thread Pitch - 0.5mm
Head Diameter - 12mm
Knurled Head Length - 2.5mm
Shoulder Diameter - 6mm
Shoulder Length (High Type) - 5mm

M4
Thread Diameter - M4
Thread Pitch - 0.7mm
Head Diameter - 16mm
Knurled Head Length - 3.5mm
Shoulder Diameter - 8mm
Shoulder Length (High Type) - 6mm

M5
Thread Diameter - M5
Thread Pitch - 0.8mm
Head Diameter - 20mm
Knurled Head Length - 4mm
Shoulder Diameter - 10mm
Shoulder Length (High Type) - 7.5mm

M6
Thread Diameter - M6
Thread Pitch - 1mm
Head Diameter - 24mm
Knurled Head Length - 5mm
Shoulder Diameter - 12mm
Shoulder Length (High Type) - 10mm

Package Contains:According to your choice .