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A4-70 Hex Bolt

A4-70 Hex Bolt

A4-70 Hex Bolt



A4 50 Bolts Nuts Mechanical Characteristics


Tensile Strength (MPa) min Hardness
Rockwell B (HR B) max
Elong
(% in 50mm) min
Yield Strength
0.2% Proof
(MPa) min
Brinell (HB) max
700 Not required 40 450 Not required

Chemical Composition of A4-80 Stainless Steel Stud bolt


Grade   C Si Mn P S Cr Mo Ni Cu N
A4 Min - - - - - 16.0 2.0 10.5 - -
ISO Max 0.08 1.00 2.00 0.045 0.03 18.5 3.0 14.0 1.0 -
A4-70 Min - - - - - 16.0 2.0 11.5 - 0.12
ISO² Max 0.03 1.00 2.00 0.045 0.03 18.5 3.0 14.0 1.0 0.22

A4-50 material specification chart


Specification ASTM A193, A194 / ASME SA193, SA194, ASTM F1554, F593, F594 / ASME F1554, SF593, F594
In Form of:
  • Hex
  • Round
  • Square
  • Threading as per Gauge.
Available Lengths From 3 - 200 mm
Threads BSF, BSW, METRIC, UNC, UNF or as required
Sizes Range M03 – M56 | 3/6" upto 2"

Dimensional Chart of A4-70 Hex Bolt


Dimensional Chart of A4-70 Hex Bolt

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