EN 15048
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Non Pre-Load Bolt Assemblies
EN 15048
BS EN 15048 – 1 & 28.8 & 10.9
Assemblies BS EN 15048 Fully Threaded Setscrew Dimensions.
BS EN 15048 Fully Threaded Setscrew Dimensions. Classes 8.8 & 10.9
| Nom. Dia. (d) | M12 | M16 | M20 | M24 | M30 | M36 | |
| Thread Pitch | 1.75 | 2.00 | 2.50 | 3.00 | 3.50 | 4.00 | |
| a | Max. | 5.25 | 6.00 | 7.50 | 9.00 | 10.50 | 12.00 |
| s | Min. | 17.57 | 23.16 | 29.16 | 35.00 | 45.00 | 53.80 |
| Max. | 18.00 | 24.00 | 30.00 | 36.00 | 46.00 | 55.00 | |
| e | Min. | 19.85 | 26.17 | 32.95 | 39.55 | 50.85 | 60.79 |
| df | Min. | 16.47 | 22.00 | 27.70 | 33.25 | 42.75 | 51.11 |
| c | Min. | 0.15 | 0.20 | 0.20 | 0.20 | 0.20 | 0.20 |
| Max. | 0.60 | 0.80 | 0.80 | 0.80 | 0.80 | 0.80 | |
| r | Min. | 0.60 | 0.60 | 0.80 | 0.80 | 1.00 | 1.00 |
| de | Max. | 13.70 | 17.70 | 22.40 | 26.40 | 33.40 | 39.40 |
| k | Min. | 7.32 | 9.71 | 12.15 | 14.65 | 18.28 | 22.08 |
| Max. | 7.68 | 10.29 | 12.85 | 15.35 | 19.12 | 22.92 | |
Product Characteristic | Standard | |
| Fully Threaded Setscrews | ||
| General Requirements | ISO 4017 | |
| Materials & Manufacture | ISO 898-1 Classes 8.8 & 10.9 | |
| Finish / Coatings | Zinc Electroplated | BS 7371-3 or BS EN ISO 4042 |
| Hot Dip Galvanized | BS 7371-6 or BS EN ISO 10684 | |
| Mechanical Properties | ISO 898-1 Classes 8.8 & 10.9 | |
| Dimensions & Tolerances | ISO 4017 | |
| Threads | ISO 965-2 Class 6G | |
Setscrews
| Bolt Thread Diameter | Tensile Strength | Proof Load | Elongation | Hardness Rockwell HRC | |
| N/mm2 min. | N/mm2 min. | % Min. | Min. | Max. | |
| M12 | 800 | 660 | 12 | 23 | 34 |
| M16 | 830 | 660 | 12 | 23 | 34 |
| M20 | 830 | 660 | 12 | 23 | 34 |
| M22 | 830 | 660 | 12 | 23 | 34 |
| M24 | 830 | 660 | 12 | 23 | 34 |
| M27 | 830 | 660 | 12 | 23 | 34 |
| M30 | 830 | 660 | 12 | 23 | 34 |
| M36 | 830 | 660 | 12 | 23 | 34 |
| EN 15048 Assemblies also require a Charpy Impact Test to EN 10045-1 | |||||
BS EN 15048 Nut Dimensions
| Nominal size and thread diameter d | Pitch of thread p | Width across flats s | Width across corners e | Thickness of nut m | ||
| Max. | Min. | Min. | Max. | Min. | ||
| M12 | 1.75 | 18.00 | 17.57 | 21.10 | 10.80 | 10.37 |
| M16 | 2.00 | 24.00 | 23.67 | 26.75 | 14.80 | 14.10 |
| M20 | 2.50 | 30.00 | 29.16 | 32.95 | 18.00 | 16.90 |
| M24 | 3.00 | 36.00 | 35.00 | 39.55 | 21.50 | 20.20 |
| M30 | 3.50 | 46.00 | 45.00 | 50.85 | 25.60 | 24.30 |
| M36 | 4.00 | 55.00 | 53.80 | 60.79 | 31.00 | 29.40 |
Product Characteristic | Standard | |
| Nuts | ||
| General Requirements | ISO 4032 & 4034 | |
| Materials & Manufacture | ISO 4032 & 4034 Class 8, 10 & 12 | |
| Finish / Coatings | Self Colour / Black | ISO 4032 & 4034 |
| Zinc Electroplated | BS 7371-3 or BS EN ISO 4042 | |
| Hot Dip Galvanized | BS 7371-6 or BS EN ISO 10684 | |
| Mechanical Properties | Self Colour / Zinc Electroplated | ISO 4032 & 4034 Class 8 |
| Hot Dip Galvanized | ISO 4032 & 4034 Class 10 & 12 | |
| Dimensions & Tolerances | ISO 4032 & 4034 | |
| Threads | Self Colour / Zinc Electroplated | ISO 965-2 Class 6H |
| Hot Dip Galvanized | ISO 965-2 Class 6AZ | |
| Product Marking | BS EN ISO 898-2 | |
BS EN 15048 Proof load values of property classes 8 & 10 nuts
| Nut thread Diameter | Stress Area Test Mandrel | Property Class | |
| 8 | 10 | ||
| Tolerance class 6H (1) | Tolerance class 6AZ (2) | ||
| mm2 | Proof Load kN | Proof Load kN | |
| M12 | 84.3 | 67 | 78.1 |
| M16 | 157 | 125 | 150 |
| M20 | 245 | 196 | 236 |
| M24 | 353 | 282 | 342 |
| M30 | 561 | 448 | 551 |
| M36 | 817 | 653 | 808 |
| 6H (1) is the tolerance class for self colour & Zinc plated nuts. | |||
| 6AZ (2) is the tolerance class for hot dip galvanized nuts | |||
| Nominal size of bolt or screw | EN ISO 7089 – 2000 | |||||
| Inside Diameter d1 | Outside Diameter d2 | Thickness s | ||||
| Max. | Min. | Max. | Min. | Max. | Min. | |
| M12 | 13.93 | 13.50 | 24.00 | 22.70 | 2.80 | 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 |
Product Characteristic | Standard | |
| Washers | ||
| General Requirements | EN ISO 7089 – 2000 | |
| Materials & Manufacture | EN ISO 7089 – 2000 | |
| Finish / Coatings | Self Colour / Black | EN ISO 7089 – 2000 |
| Zinc Electroplated | BS 7371-3 or BS EN ISO 4042 | |
| Hot Dip Galvanized | BS 7371-6 or BS EN ISO 10684 | |
| Dimensions & Tolerances | EN ISO 7089 – 2000 | |
