EN 14399-7: Basic countersunk bolt dimensions (HR CSK Bolts) - Andrews Fasteners CE Approved Bolts, Nuts & Washers
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EN 14399-7: Basic countersunk bolt dimensions (HR CSK Bolts) image

EN 14399-7: Basic countersunk bolt dimensions (HR CSK Bolts)

EN 14399 Part 7: Basic countersunk bolt dimensions (HR CSK Bolts)

Size (d) M12 M16 M20 M22 M24 M27 M30 M36
Pitch 1.75 2 2.5 2.5 3 3 3.5 4
b (l <=125) 30 38 46 50 54 60 66 78
b (125< l <=200 44 52 56 60 66 72 84
b (l >200) 65 69 73 79 85 97
ds 11.30-12.70 15.30-16.70 19.16-20.84 21.16-22.84 23.16-24.84 26.16-27.84 29.16-30.84 35.00-37.00
dk 23.16-24.00 31.16-32.00 39-40 43-44 47-48 53-54 58.8-60.0 70.8-72.0
k (nom) 8.00 10.00 13.00 14.0 16.0 17.5 19.50 23.00
k 7.25-8.75 9.25-10.75 12.1-13.9 13.1-14.9 15.1-16.9 16.6-18.4 18.45-20.55 21.95-24.05
t 3.0-4.5 3.0-4.5 3.5-5.0 3.5-5.0 3.5-5.0 3.5-5.0 4.0-5.5 4.0-5.5
i 15.5-16.5 21.5-22.5 27.5-28.5 29.5-30.5 32.5-33.5 36.5-37.5 41.5-42.5 49.5-50.5
All dimensions in millimetres
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