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Product Description:
These Class 8.8 steel screws are suitable for fastening most machinery and equipment. The flange distributes pressure where the screw meets the surface, eliminating the need for a separate washer. All screws meet DIN 6921 specifications for dimensions. Head height includes the flange. Length is measured from under the flange.
Features:
Used in automotive applications,plumbing,and more,flange bolts feature a washer like flange beneath the bolt head that speeds production time and distributes the clamping load,offering protection to te mating surface.
Steel serrated flange bolts feature a scored grip under the head to help vibration.The serrated head bites into the surface to reduce vibration that can cause loosening.
Product Drawing:
Hexagon flange bolts | ||||||||||
DIN 6921-1983 | ||||||||||
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d(mm) | P(mm) | b(mm) | dc(mm) | ds(mm) | k(mm) | s(mm) | ||||
L≤125 | 125<L≤200 | L>200 | max | min | max | max | min | max | ||
M5 | 0.8 | 16 | / | / | 11.8 | 4.82 | 5 | 5.4 | 7.78 | 8 |
M6 | 1 | 18 | / | / | 14.2 | 5.82 | 6 | 6.6 | 9.78 | 10 |
M8 | 1/1.25 | 22 | 28 | / | 18 | 7.78 | 8 | 8.1 | 12.73 | 13 |
M10 | 1/1.25/1.5 | 26 | 32 | / | 22.3 | 9.78 | 10 | 9.2 | 14.73 | 15 |
M12 | 1.25/1.5/1.75 | 30 | 36 | / | 26.6 | 11.73 | 12 | 11.5 | 15.73 | 16 |
M14 | 1.5/2 | 34 | 40 | / | 30.5 | 13.73 | 14 | 12.8 | 17.73 | 18 |
M16 | 1.5/2 | 38 | 44 | 57 | 35 | 15.73 | 16 | 14.4 | 20.67 | 21 |
M20 | 1.5/2.5 | 46 | 52 | 65 | 43 | 19.67 | 20 | 17.1 | 26.67 | 27 |