Product description: Black concave finish fixing bolt with hexagonal socket solving screw
Material: 12.9 grade carbon metal
Color: Black
Head shape: concave finish
Quantity: 1-5 items
Packaging: Plastic bag/paper field
Specification: M12M14M16M20M24
Diameter: M12 (12mm) M14 (14mm) M16 (16mm) M20 (20mm) M24 (24mm)
Tooth spacing: M12 (1.75mm) M14 (2mm) M16 (2mm)/M20 (2.5mm)/M24 (3mm)
Length: 2-100mm
The specification contains D * L, corresponding to M4 * 20 (thread diameter 4mm * length 20mm)
The above records is manually measured from a unmarried batch and might have errors. Please confer with the particular product, unit: mm