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B-7 Studs

ASTM A193 B7m Bolts are basically chromium molybdenum, heat treated steel. Chromium and molybdenum are primary alloying content of the ASTM A193 Grade B7 Bolts. These ASTM A193 B7 They are manufactured by quenching and tempering with heat at 1150 degrees F which helps to develop the desired mechanical properties. After after heat treatment the tensile strength of the ASTM A193 B7 Hex Bolts is increased. The B7 in the name of the stud is a grade of steel alloy. They host high tensile strength hence used in applications like in boilers, heat exchangers and other high pressure and high-temperature environments. We at Bhalla Fasteners also manufacture ASTM A194 2H Heavy Nuts which are beneficial in heavy industrial applications operating at very high temperatures. ASTM A194 2H Heavy Nuts are mostly used in combination with ASTM A193 B7 Bolts.

NOMINAL SIZE (D) in MM BODY DIAMETER HEAD THICKNEASTM A193 ACROASTM A193 THE FLATS ACROASTM A193 CORNERS
D (MAX) D (MIN) H (MAX) H (MIN) F (MAX) F (MIN) C (MAX) C (MIN)
m10 10.00 9.78 6.63 6.17 17.00 15.73 18.48 17.77
m12 12.00 11.73 7.76 4.24 19.00 17.73 20.78 20.03
m14 14.00 13.73 9.09 8.51 22.00 20.67 24.25 23.35
m16 16.00 15.73 10.32 9.68 24.00 23.67 27.71 26.75
m20 20.00 19.67 12.88 12.12 30.00 29.16 34.64 32.95
m24 24.00 23.67 15.44 14.56 36.00 35.00 41.57 39.55
m30 30.00 29.67 19.48 17.92 46.00 45.00 53.12 50.85
m36 36.00 35.61 23.38 21.63 55.00 53.80 63.51 60.79
m42 42.00 41.38 26.97 25.03 65.00 62.90 75.06 71.71
m48 48.00 47.38 31.07 28.93 75.00 72.60 86.60 82.76
m56 56.00 55.26 36.2 33.80 85.00 82.20 98.15 93.71
m64 64.00 63.26 41.32 38.68 95.00 91.80 109.70 104.65
m72 72.00 71.26 46.45 43.55 105.00 101.40 121.24 115.60
m80 80.00 79.26 51.58 48.42 115.00 111.00 132.72 126.54
m90 90.00 89.13 57.74 54.26 130.00 125.50 150.11 143.07
m100 90.00 99.13 63.9 60.10 145.00 140.00 167.43 159.60
  • Specifications : IS, BS, ASTM
  • Standard : ASTM A193/194
  • Size : 1/2'' X TO 6''
  • Length : 100 TO 300 MM
  • Type : Stud Bolt and Nuts
  • ASTM A193 B7 Hex Bolt Dimension