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DIN 931(Hexagon Head Cap Screws/Bolts Part Thread)

DIN 931 Half Thread Bolts manufacturers in India

Steel Grades-4.6,5.6,6.8,10.9,12.9
Finish Self, Black, Zinc electroplating , Hot dip galvanised, cadmium , chromate , Green passivation.

din 931 bolt

Although various special threads are defined by the ISO standard only two are in common use in most machinery, the others are mainly used in specialist equipment such as precision instruments, optical instruments, etc.

Bhalla fasteners uses two threads most commonly found in plant and machinery are commonly known as ‘standard’ and ‘fine’ pitch.

The pitch of a thread is the distance between two adjacent threads and is measured in millimetres.

The most common thread diameter and pitch combinations found in plant and machinery are listed in the table below:

din 931 specification

Size Pitch (std) Pitch (fine)
M5 0.8  
M6 1.0 0.75
M8 1.25 1.0
M10 1.5 1.0 or 1.25
M12 1.75 1.5
M16 2.0 1.5
M20 2.5 1.5
M24 3.0 2.0
M30 3.5 2.0
 
pitch for automated machines
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Weight Table

Din 931 bolt weight chart 

Weight in kgs. per 1,000 pcs. unless otherwise specified. All weights are approximations.

Diameter M4 M5 M6 M7 M8 M10 M12 M14 M16 M18 M20 M22 M24 M30 M36 M48
Length
25 3.12 4.86                            
30 3.61 5.64 8.06 12.7                        
35 4.04 6.42 9.13 13.6 18.2                      
40 4.53 7.20 10.2 15.1 20.3 35.0                    
45   7.98 11.3 16.6 22.2 38.0 53.6                  
50   8.76 12.3 18.1 24.2 41.1 58.1 82.0                
55     13.4 19.5 25.8 43.8 62.6 88.1 115              
60     14.4 21.0 27.8 46.9 67.0 94.1 123              
65       22.5 29.8 50.0 70.3 98.8 131 171 219          
70       24.0 31.8 53.1 74.7 105.0 139 181 231 281        
75         33.7 56.2 79.1 111.0 147 191 243 296        
80         35.7 59.3 83.6 117.0 155 200 255 311 392      
85           62.4 88.1 123.0 163 210 267 326 410      
90           65.5 92.4 127.0 171 220 279 341 428 712    
95           68.6 96.8 133.0 179 230 291 356 446 739    
100           71.7 101.0 139.0 186 240 303 370 464 767    
110             109.0 151.0 202 260 327 400 500 823 1240  
120             118.0 164.0 218 280 351 430 535 880 1320  
130               174.0 230 296 374 450 560 920 1390  
140               185.0 246 316 398 480 595 975 1470 2860
150                 262 336 422 510 630 1030 1550 3010
160                 278 356 446 540 665 1085 1630 3160
170                   376 470 570 700 1140 1710 3300
180                   396 494 600 735 1200 1790 3440
190                     519 630 770 1250 1870 3580
200                     544 660 805 1310 1950 3720
220                       720 870 1420 2110 4010
240                         935 1530 2270 4290
260                           1640 2430 4570
280                           1750 2590 4850
300                           1860 2750 5130
320                               5410
340                               5690

All data for information purpose only. For more details on any specific  product standards or dimensions, please feel free to contact us at https://www.bhallafasteners.com/contact-us 

Specification Table
service

din 931 equivalent indian standard

“b” measurement varies according to length of bolt

All measurements in millimeters (mm)

d1 b to 125 b to 200 b over 200 k e s
M4 14 2.8 7.66 7
M5 16 3.5 8.79 8
M6 18 24 4 11.05 10
M8 22 28 5.3 14.38 13
M10 26 32 45 6.4 18.9 17
M12 30 36 49 7.5 21.1 19
M14 34 40 53 8.8 24.49 22
M16 38 44 57 10 26.75 24
M18 42 48 61 11.5 30.14 27
M20 46 52 65 12.5 33.53 30
M22 50 56 69 14 35.72 32
M24 54 60 73 15 39.98 36
M27 60 66 79 17 45.2 41
M30 66 72 85 18.7 50.85 46
M33 72 78 91 21 55.37 50
M36 78 84 97 22.5 60.79 55
M42 90 96 109 26 71.3 65
M45 96 102 115 28 76.95 70
M48 102 108 121 30 82.60 75

All data for information purpose only. For more details on any specific  product standards or dimensions, please feel free to contact us at https://www.bhallafasteners.com/contact-us