• 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 |
| 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 |
|
