Knurled-head socket cap screw, DIN 912, A2, M8x45
DIN 912 is a German technical standard that defines the specifications for socket head cap screws. A socket head cap screw features a head with an internal hexagonal recess, meaning it is installed or removed using a hex key (Allen key).
"Knurled" indicates that the screw has a textured pattern or grooves on the outer edge of the head. This knurling provides a better grip, making it easier to handle the screw during installation or removal.
M8 x 45 means the screw has a thread diameter of M8 (8 mm) and a total length of 45 mm.
A2 refers to an austenitic grade of stainless steel, which is corrosion-resistant. This means the screw will not rust when exposed to moisture and is frequently used in environments where there is a risk of corrosion.