Black DIN 7991 M8 screws made of normal steel with grade 10.9. These bolts are 'unfinished', which means they are greasy and senstive to rust when you clean them. Not suitable for outdoor usage.
The depth of a profile slot is 12mm, keep this in mind when selecting the lenght of the thread, because it is possible for them to be too long. Unlike the other bolts (DIN 912 and ISO 7380) the indicated length of a DIN 7991 bolt means the total length, including the head. Not just lenght of the thread.
s | 5mm |
l | 16, 20mm |
dk | 16mm |
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