Content with HR Countersunk Bolt dimensions

16 November 2016
BS 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.
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