STRUCTURAL BOLT

EN 15048-2
EN 15048
Non Pre-Load Bolt Assemblies SB
BS EN 15048-1 & 2:2007
ISO 4017 Setscrew Mechanical Properties.
ClassB.BSB
M24 830.00 660.00 12.00 23.00 34.00
M27 830.00 660.00 12.00 23.00 34.00
M30 830.00 660.00 12.00 23.00 34.00
M36 830.00 660.00 12.00 23.00 34.00
BS EN 15048 Assemblies also require a Charpy Impact Test to ISO 148·1
ISO 4017 Setscrew Dimensions. Classes 8.BSB & 10.9SB
Thread
d
p d,
Product
grade A
Product
grade 8
Product
grade A
Product
grade 8
Product grade
A
Product grade B Product grade
A
Product grade
0
Product
grade A
Product grade 0
max.• min. max. min. max. min. min. min. min. max. min. max. min. min. min. min. max. min. min.
M12 1.75 5.3 1.75 0.60 0.15 13.7 16.63 16.47 20.03 19.85 7.68 7.32 7.79 7.21 5. 12 5.05 0.6 18 17.73 17.57
M16 0.80 0.20 17.7 22.49 22.00 26.75 26.17 10.18 9.82 10.29 9.71 6.87 6.8 0.6 24 23.67 23.16
M20 2.5 7.5 2.5 0.80 0.20 22.4 28.19 27.70 33.53 32.95 12.715 12.285 12.85 12.15 8.60 8.51 0.8 30 29.67 29.16
M24 0.80 0.20 26.4 33.61 33.25 39.98 39.55 15.215 14.785 15.35 14.65 10.35 10.26 0.8 36 35.38 35.00
M30 3.5 10.5 3.5 0.80 0.20 33.4 42.75 50.85 19.12 18.28 12.80 46 45.00
M36 12 0.80 0.20 39.4 51.11 60.79 ### 22.08 15.46 55 53.80
• Values in accordance with a,,…, normal series, in ISO 3508.  b   kw……, = 0.7 k ,,,,.,

Material Steel
General Req. International Standard ISO 8992
Thread Tolerance Class 6g
International Standards ISO 724, ISO 965-1
Mechanical Properties Property class 8.8SB or 10.9SB
International Standards ISO 898·1
Tolerances Product grade d :s: 24 mm and I :s: 10 d or 150 mm8: A
d > 24 mm or / > 10dor 150 mm•: B
International Standard ISO 4759-1
Finish ·Coating As Processed
Requirements for electroplating are specif ied in ISO 4042.
Requirements for hot dip galvanized coatings are specified in ISO 10684.
Additional requirements or other finishes or coatings shall be agreed between the supplier and the purchaser.
Surface integrity Limits for surface discontinuities are specified in ISO 6157-1.
Acceptability Acceptance inspection is specified in
ISO 3269.
• Whichever is the shorter.

BS EN 15048 Head Marking
BS EN 15048 Head Marking
    k
a
a
IMPORTANT NOTE
It is a requirement of BS EN 15048 that the bolt, nut and washer assembly is supplied by one manufacturer who is responsible for the function of the assembly. All the components are identified with the manufacturer ‘s mark. The coating of the
assembly is under the control of the manufacturer.
BS EN 15048
Head Marking
• Unless otherwise specified at
the time of order, the nuts are delivered without washer-face.
13 = 15″ to 30″.
< 9 = 90″ to120″.
°’
ISO 4032 Nut Dimensions. Classes BSB & 10SB
Thread
d
d,
max. min. max. min. min. min. max. min. min. max. min.
M12 1.75 0.60 0.15 13.00 12.00 16.60 20.03 10.80 10.37 8.30 18.00 17.73
M16 2.00 0.80 0.20 17.30 16.00 22 .50 26.75 14.80 14.10 11.30 24.00 23.67
M20 2.50 0.00 0.20 21.60 20.00 27.70 32.95 10.00 16.90 13.50 30.00 29.16
M24 3.00 0.00 0.20 25.90 24.00 33.30 39.55 21.50 20.20 16.20 36.00 35.00
M30 3.50 0.00 0.20 32.40 30.00 42.80 50.85 25.60 24.30 19.40 46.00 45.00
M36 4.00 0.80 0.20 38.90 36.00 51.10 60.79 31.00 29.40 23.50 55.00 53.00
Pis the pitch of the thread

ISO 4032 Nut Proof Loads. Classes SSB & 1OSB
Nut Thread Diameter Proof Load (KN)
ass 10SB
M12 74.2 88.5
M16 130.2 164.9
M20 225.4 259.7
M24 324.0 374.2
M30 516.1 594.7
M36 751.6 866.0
Material Steel
General Requirements International Standard ISO 8992
Thread Tolerance Class SH
International Standards ISO 724, ISO 965-1
Mechanical Properties Property Class 8SB or 10SB
International Standards ISO 090-2
Tolerances Product grade O:s: M16: A
D > M16: B
International Standard ISO 4759-1
Finish • Coating As  Processed
Requirements for electroplating are specified in ISO 4042.
Requirements for hot dip galvanized coatings are specified in ISO 10684.
Additional requirements or other finishes or coatings shall be agreed between the supplier
& the purchaser.
Surface integrity Limits for surface discontinui­ ties are specified in ISO 6157-2.
Acceptability Acceptance inspection is specified in ISO 3269.
Material Steel
r t;:    I ._H_a_r_dn_e_ss_c_1_as_s–
Hardness range
+_1_oo_H_v                                                          —–<
100 HV to 200 HV
Tolerances Product grade c
International Standard I SO 4759-3
Finish – Coating As Processed
Requirements for electroplating are specified in ISO 4042.
Requirements for hot dip galvanized coatings are specified in ISO 10684.
Additional requirements or other finishes or coatings shall be agreed between the supplier and the purchaser.
Workmanship Parts shall be free of irregularities or detrimental defects. No protruding burrs shall appear on the washer.
Acceptability Acceptance procedure covered in ISO 3269.
ISO 7091 Washer Dimensions (100 HV Min.)
Nominal Size of Bolt or Screw Inside Diameter d
1
Outside Diameter d2 Thickness h
max min max min max min
M12 13.93 13.50 24.00 22.70 2.00 2.20
M16 17.93 17.50 30.00 28.70 3.60 2.40
M20 22.52 22.00 37.00 35.40 3.60 2.40
M24 26.52 26.00 44.00 42 .40 4.60 3.40
M30 33.62 33.00 56.00 54.10 4.60 3.40
M36 40.00 39.00 66.00 64.10 6.00 4.00
EN 15048-6

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