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Flange Bolts

FLANGE HEX BOLTS - DIN 6921

The flange bolt is a fastener that features a skirt extending outwards from the head at a 360 degrees angle. Flange bolts got their name due to the circular flange which is manufacture to the underside of its head. These flanges distribute the load evenly between the different joints of the structure which is being fastened by it but remember to fasten all the joints using the same dimension of the flange bolt. These ensure that the structure being built is impeccably designed for maximum load-bearing capacity. Flange bolts are used for high-strength applications. Like when we put the connection between the transmission and the engine in a vehicle, in the construction of oil rings, energy plants, manufacturing plants, large automobiles, and ships. Albeit the interesting thing is when it is combined with the characteristics of stainless steel, then the strength of this bolt is increased and used for heavy-duty applications.
CBH offer flange bolts in different material and finishes like anodized aluminum and zinc chromate, stainless steel, carbon steel, and alloy steel.




d M5 M6 M8 M10 M12 M14 M16 M20
Pitch 0.8 1 1.25 1.5 1.75 2 2 2.5
b min 16 18 22 26 30 34 38 46
d2 max 11.8 14.2 18 22.3 26.6 30.5 35 43
k max 5.4 6.6 8.1 9.2 11.5 12.8 14.4 17.1
s max 8 10 13 15 16 18 21 27


Metric Series Approx Count Per 50kg.
Dia M5 M6 M8 M10 M12 M14 M16 M20
Length
10mm 15528              
12mm 14451 7205 3634 2080        
16mm 12690 6562 3331 1922        
20mm 11312 6024 3077 1788 1127      
25mm 9524 5459 2809 1644 1044 756 597  
30mm 8333 4762 2583 1521 972 704 553  
35mm 7418 4318 2297 1415 909 659 516  
40mm 6684 3953 2111 1276 854 619 483  
45mm 6075 3642 1953 1185 779 584 455  
50mm 5574 3378 1817 1106 730 535 429  
55mm 5149 3149 1698 1037 686 503 395  
60mm 4780 2948 1594 976 648 475 372  
65mm 4464 2773 1503 922 613 450 351  
70mm 4188 2616 1421 873 582 427 333  
80mm 3723 2352 1281 790 529 388 301  
90mm   2136 1166 721 484 355 276  
100mm   1955 1071 664 447 327 254  
110mm       614 415 304 236  
120mm       572 387 283 219  
130mm       539 365 267 207  
140mm         343 252 195  
150mm           237 183  
160mm                
180mm                
200mm