Email Print Facebook Twitter Google LinkedIn Whatsapp Share

IS 1363-2 Hexagon Head Screws

IS 1363-2 Hex Head Screws

Dimensions of IS 1363-2 Preferred Threads

Thread (d) pa a c max da max dw min e min k kwb min r min s
max min nom max min nom = max min
M5 0.8 2.4 0.8 0.5 6 6.74 8.63 3.5 3.875 3.125 2.19 0.2 8.00 7.64
M6 1 3 1 0.5 7.2 8.74 10.89 4 4.375 3.625 2.54 0.25 10.00 9.64
M8 1.25 4.00 1.25 0.6 10.2 11.47 14.20 5.3 5.675 4.925 3.45 0.4 13.00 12.57
M10 1.5 4.5 1.5 0.6 12.2 14.47 17.59 6.4 6.85 5.95 4.17 0.4 16.00 15.57
M12 1.75 5.30 1.75 0.6 14.7 16.47 19.85 7.5 7.95 7.05 4.94 0.6 18.00 17.57
M16 2 6 2 0.8 18.7 22 26.17 10 10.75 9.25 6.48 0.6 24.00 23.16
M20 2.5 7.5 2.5 0.8 24.4 27.7 32.95 12.5 13.40 11.6 8.12 0.8 30.00 29.16
M24 3 9 3 0.8 28.4 33.25 39.55 15 15.9 14.1 9.87 0.8 36 35
M30 3.5 10.5 3.5 0.8 35.4 42.75 50.85 18.7 19.75 17.65 12.36 1 46 45
M36 4 12 4 0.8 42.4 51.11 60.79 22.5 23.55 21.45 15.02 1 55.0 53.8
M42 4.5 13.5 4.5 1 48.6 59.65 71.3 26 27.05 24.95 17.47 1.2 65.0 63.1
M48 5 15 5 1 56.6 69.45 82.6 30 31.05 28.95 20.27 1.6 75.0 73.1
M56 5.5 16.5 5.5 1 67 78.66 93.56 35 36.25 33.75 23.63 2 85.0 82.8
M64 6 18 6 1 75 88.16 104.86 40 41.25 38.75 27.13 2 95.0 92.8

Dimensions of IS 1363-2 Non-Preferred Threads

Thread (d) pa a c max da max dw min e min k kwb min r min s
max min nom max min nom = max min
M14 2 6 2 0.6 16.7 19.15 22.78 8.8 9.25 8.35 5.85 0.6 21.00 20.16
M18 2.5 7.5 2.5 0.8 21.2 24.85 29.56 11.5 12.4 10.6 7.42 0.6 27.00 26.16
M22 2.5 7.5 2.5 0.8 26.4 31.35 37.29 14 14.9 13.1 9.17 0.8 34 33
M27 3 9 3 0.8 32.4 38 45.2 17 17.9 16.1 11.27 1 41 40
M33 3.5 10.5 3.5 0.8 38.4 46.55 55.37 21 22.05 19.95 13.97 1 50 49
M39 4 12 4 1 45.4 55.86 66.44 25 26.05 23.95 16.77 1 60 58.8
M45 4.5 13.5 4.5 1 52.6 64.7 76.95 28 29.05 26.95 18.87 1.2 70 68.1
M52 5 15 5 1 62.6 74.2 88.25 33 34.25 31.75 22.23 1.6 80 78.1
M60 5.5 16.5 5.5 1 71 83.41 99.21 38 39.25 36.75 25.73 2 90 87.8

Specifications and reference standards

Material Steel
General Requirements International Standard ISO 8992
Thread Tolerance 8g
International Standards ISO 724, ISO 965-1
Mechanical Properties Property Classa d≤ 39mm: 3.6, 4.6, 4.8
d > 39mm: as agreed
International Standard d≤ 39mm: 3.6, 4.6, 4.8
d > 39mm: as agreed
Tolerances Product grade C
International Standard ISO 4759-1
Finish and/or coating

As Processed

Requirements for electroplating are converted in ISO 4042.

Requirements for non-electrolytically applied zinc flake coatings are converted in ISO 10683

If different electroplating requirements are desired or if requirements are needed for other finishes, they should be agreed between custom and supplier.

Acceptability For acceptance procedure, see ISO 3269
a For other property classes see ISO 898-1