Countersunk Square M12 x 45mm Black Gr.4.8 DIN 608

Countersunk Square
Metric
Black Grade 4.6
Dia: M12
Pitch: 1.75
Length: 45mm
DIN 608
Wrench Size Across Flats: 19mm - to fasten nut only.
The DIN 608 countersunk square bolt (commonly called a plow bolt or flat countersunk square neck bolt) is a metric fastener designed for applications requiring a flush surface finish and an anti-rotation locking feature.