GOST 21249-1-1996
75°Square head blunt bolts-Table1
GOST 21249-1-1996
60°Square head blunt bolts-Table1
GOST 21249-1-1996
45°Square head blunt bolts-Table1
GOST 21249-2-1996
75°Square head blunt bolts-Table2
GOST 21249-2-1996
60°Square head blunt bolts-Table2
GOST 21249-2-1996
45°Square head blunt bolts-Table2