High strength friction grip bolts and nuts

 

Here is some useful information relating to High Strength Friction Grip Bolts.

 

Table 1.1

Approximate Masses of Ordinary Bolts, Nuts and Washers

  Mass per 100 bolts excluding nuts (kg)

Nominal

Length

(mm)

M12 M16 M20 M24 M30
30 4.0        
35 4.6        
40 5.0 9.5 15.9    
45 5.4 10.4 17.6    
50 5.9 11.1 18.5 27.6 49.2*
55 6.4 11.5 19.7 29.7 51.9*
60 6.8 12.7 21.0 31.5 54.7
65 7.1 13.4 22.3 33.4 57.4
70 7.6 13.7 23.4 35.2 60.2*
80 8.5 15.9 25.8 38.7 65.7
90 9.4 17.4 28.2 41.5 71.2
100 10.0 18.8 30.6 45.1 76.7
110 11.1 20.5 33.1 48.6 82.3
120 12.0 22.3 35.6 52.3 88.0
130 12.7 23.8 38.0 55.8 88.0
140 13.6 25.4 40.6 59.3 97.5
150 14.5 26.9 43.1 63.0 103
160 15.3 27.8 44.7 66.5 109
180 17.1 31.0 49.5 73.5 120
200   34.2 54.5 80.5 131
Mass per 100 nuts (kg)
DIN 934 1.51 3.00 5.90 10.1 20.9
ISO 4032 1.59 3.42 6.67 11.4 22.3
Mass per 100 round flat washers (kg)
DIN 126 0.59 1.06 1.64 3.11 5.05

 

Table 1.2

Basic Dimensions of HSFG Bolts

bolts_nuts_drawing_1.jpg

 

  s k ds e
d Min Max Min Nom Max Min Min
M16 26.2 27.0 9.25 10.0 16.7 15.3 29.56
M20 33.0 34.0 11.60 13.0 20.0 19.67 37.29
M24 40.0 41.0 14.10 15.0 24.0 23.67 45.20
M30 49.0 50.0 17.65 19.0 30.8 29.16 55.37

 

Table 1.3

Basic Dimensions of Nuts for HSFG Bolts bolts_nuts_drawing_2.jpg

  p s e m
d pitch Max Min Min Max Min
M16 2.0 27.0 26.2 29.56 17.1 19.4
M20 2.5 34.0 33.0 37.29 20.7 19.4
M24 3.0 41.0 40.0 45.20 24.2 22.9
M30 3.5 50.0 49.0 55.37 30.7 29.5

 

 

Table 1.4

Basic Dimensions of Washers for HSFG Bolts

bolts_nuts_drawing_3.jpg

 

  d1 d2 c
d Max Min Max Min Max Min
M16 17.43 17 33 31.4 1.6 1.2
M20 21.52 21 40 38.4 2.0 1.6
M24 25.52 25 47 45.4 2.0 1.6
M30 31.62 31 56 54.1 2.4 2.0