ThreadDiam Pitch HoleDiam W DESC_IN_DRAFTING 1,588mm 0,423mm 1,050mm 1/16" 2,381mm 0,529mm 1,700mm 3/32" 3,175mm 0,635mm 2,360mm 1/8" 3,969mm 0,794mm 2,950mm 5/32" 4,763mm 1,058mm 3,410mm 3/16" 5,556mm 1,058mm 4,200mm 7/32" 6,350mm 1,270mm 4,720mm 1/4" 7,940mm 1,411mm 6,130mm 5/16" 9,525mm 1,587mm 7,490mm 3/8" 11,113mm 1,814mm 8,790mm 7/16" 12,700mm 2,117mm 9,990mm 1/2" 14,288mm 2,117mm 11,580mm 9/16" 15,875mm 2,309mm 12,920mm 5/8" 19,050mm 2,540mm 15,800mm 3/4" 22,225mm 2,822mm 18,610mm 7/8" 25,400mm 3,175mm 21,340mm 1" 28,575mm 3,628mm 23,930mm 1 1/8" 31,750mm 3,628mm 27,110mm 1 1/4" 34,925mm 4,233mm 29,510mm 1 3/8" 38,100mm 4,233mm 32,680mm 1 1/2" 41,275mm 5,080mm 34,770mm 1 5/8" 44,450mm 5,080mm 37,950mm 1 3/4" 47,625mm 5,644mm 40,400mm 1 7/8" 50,800mm 5,644mm 43,580mm 2" 57,150mm 6,350mm 49,020mm 2 1/4" 63,500mm 6,350mm 55,370mm 2 1/2" 69,850mm 7,257mm 60,560mm 2 3/4" 76,200mm 7,257mm 66,910mm 3 " 82,550mm 7,815mm 72,550mm 3 1/4" 88,900mm 7,815mm 78,900mm 3 1/2" 95,250mm 8,467mm 84,410mm 3 3/4" 101,600mm 8,467mm 90,760mm 4"