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extension-nuts
d, d2 d3 L. 1   L2 Z
H7 m6   Short Long    
8 12 15 8 12.5    
10 15 18 10 16 2 0.01
15 20 24 12.5 20    
22 28 32 16 25 2.5  
28 36 40       0.02
35 46 50 20 32 3  
46 56 60 25 40 4 0.03
58 70 74        

Designation

A Headed liner bush having d1 = 22 mm & L1 = 25mm shall be designated as Liner Bush A 22 x 25 IS: 666 (Part II)


d1 g6 L1 d2 d3 L2 L3 n t
M5 5 7.5 12 8 15.6 1.6 2
  6       19.5    
M6 7.5 10 16 10 21 2 2.5
M8 10 13 20 12 27 2.5 3

Designation

A locking screw with d1 = M6 and shoulder Length L1 = 7.5mm shall be designated as Locking screw M6 x 7.5 IS: 666 (Part II) Materials: EN8/ EN9

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