16 mm are 100 HV; all sizes of stainless steel are 140 HV. Hardness Class 100 HV washers are suitable for use with bolts/screws Class 6.8 and below and nuts Class 6 and below; use 140 HV with bolts/screws below Class 8.8 and nuts below Class 8. Choose a washer size, as listed by its nominal hole size, to match the screw size (for example, use an M6 washer with an M6 screw). DIN 9021 Fender Washers may be the same as ISO 7093" />
Flat Plain Washers DIN9021

DEFAULT SPECIFICATIONS

Brand HJ Tech
Standard DIN9021
Material carbon steel/stainless steel/brass/aluminum
Finish Plain/Self Colour (S/C)/Polished/Black Oxide (Black)
Size 2.5-36  

 

FEATURES

 

DIN 9021 Fender Washers, without chamfer, are flat washers with a large outside diameter, which is about 3 times their nominal size (denoted as ~3d). "Without chamfer" means the outside edge on one side isn't beveled. Their extra-wide bearing surface is favored when confronted with oversized and irregularly shaped holes and soft materials that require extra support. Materials and finishes include steel, zinc plated and plain finish (can rust), and stainless steel. Steel washers ≤16 mm are Class 140 HV and >16 mm are 100 HV; all sizes of stainless steel are 140 HV. Hardness Class 100 HV washers are suitable for use with bolts/screws Class 6.8 and below and nuts Class 6 and below; use 140 HV with bolts/screws below Class 8.8 and nuts below Class 8. Choose a washer size, as listed by its nominal hole size, to match the screw size (for example, use an M6 washer with an M6 screw). DIN 9021 Fender Washers may be the same as ISO 7093

Flat Plain Washers DIN9021

Description:

 

Size thread diameter d1 dc h per 1000 units
    Min Max max min pitch max min kg
 2.7 2.5  2.7  2.84   8  7.64 0.8  0.9  0.7  0.28 
3.2 3 3.2 3.38 9 8.64 0.8 0.9 0.7 0.349
3.7 3.5 3.7 3.88 11 10.57 0.8 0.9 0.7 0.529
4.3 4 4.3 4.48 12 11.57 1 1.1 0.9 0.774
5.3 5 5.3 5.48 15 14.57 1.2 1.4 1 1.46
6.4 6 6.4 6.62 18 17.57 1.6 1.8 1.4 2.79
7.4 7 7.4 7.62 22 21.48 2 2.2 1.8 5.29
8.4 8 8.4 8.62 24 23.48 2 2.2 1.8 6.23
10.5 10 10.5 10.77 30 29.48 2.5 2.7 2.3 12.2
13 12 13 13.27 37 36.38 3 3.3 2.7 22.2
15 14 15 15.27 44 43.38 3 3.3 2.7 31.6
17 16 17 17.27 50 49.38 3 3.3 2.7 40.9
20 18 20 20.52 56 54.1 4 4.6 3.4 67.4
22 20 22 22.52 60 58.1 4 4.6 3.4 76.8
26 24 26 26.84 72 70.1 5 6 4 139
33 30 33 34 92 89.8 6 7 5 273
39 36 39 40 110 107.8 8 9.2 6.8 522

 

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Flat Plain Washers DIN9021

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