DIN 603 Mushroom Head Square Neck Bolt (Carriage Bolt)
Mushroom head square neck (carriage) bolts, designed to prevent rotation during tightening and provide a smooth, low-profile head for timber and sheet-metal joints.
Catalogue – Page Image (toggle)
| Thread Size (d) | M5 | M6 | M8 | M10 | M12 | M16 | M20 | ||||
| Pitch | P | 0,8 | 1 | 1,25 | 1,5 | 1,75 | 2 | 2,5 | |||
| Head Height | k max. | 3,3 | 3,88 | 4,88 | 5,38 | 6,95 | 8,95 | 11,05 | |||
| k min. | 2,7 | 3,12 | 4,12 | 4,62 | 6,05 | 8,05 | 9,95 | ||||
| Head Diameter | dk max. | 13,55 | 16,55 | 20,65 | 24,65 | 30,65 | 38,8 | 46,8 | |||
| dk min. | 12,45 | 15,45 | 19,35 | 23,35 | 29,35 | 37,2 | 45,2 | ||||
| Neck Height | f max. | 4,1 | 4,6 | 5,6 | 6,6 | 8,75 | 12,9 | 15,9 | |||
| f min. | 2,9 | 3,4 | 4,4 | 5,4 | 7,25 | 11,1 | 14,1 | ||||
| Neck Width | v max. | 5,48 | 6,48 | 8,58 | 10,58 | 12,7 | 16,7 | 20,84 | |||
| v min. | 4,52 | 5,52 | 7,42 | 9,42 | 11,3 | 15,3 | 19,16 | ||||
| Schaft Diameter | ds max | 5 | 6 | 8 | 10 | 12 | 16 | 20 | |||
| ds min | 4,52 | 5,52 | 7,42 | 9,42 | 11,3 | 15,3 | 19,16 | ||||
| Thread Length | b1 | 16 | 18 | 22 | 26 | 30 | 38 | 46 | |||
| b2 | 22 | 24 | 28 | 32 | 36 | 44 | 52 | ||||
| b3 | – | – | 41 | 45 | 49 | 57 | 65 | ||||
| b1: Thread length for bolts up to 125 mm | |||||||||||
| b2: Thread length for bolts between 125 & 200 mm | |||||||||||
| b3: Thread length for bolts more than 200 mm | |||||||||||
| Thread Size (d) | M5 | M6 | M8 | M10 | M12 | M16 | M20 | ||
| Length (L) | min. | max. | Mass for 1,000 units (kg) | ||||||
| 12 | 11,65 | 12,35 | 3,42 | 5,70 | 10,40 | – | – | – | – |
| 16 | 15,10 | 16,90 | 4,00 | 6,60 | 12,10 | 20,00 | 32,50 | – | – |
| 20 | 18,95 | 21,05 | 4,50 | 7,60 | 13,80 | 22,70 | 36,40 | 75,50 | – |
| 25 | 23,95 | 26,05 | 5,10 | 8,50 | 15,40 | 25,20 | 40,30 | 82,60 | – |
| 30 | 28,95 | 31,05 | 5,90 | 9,70 | 17,00 | 27,70 | 44,20 | 89,70 | – |
| 35 | 33,75 | 36,25 | 6,70 | 10,70 | 19,00 | 30,20 | 48,10 | 96,80 | – |
| 40 | 38,75 | 41,25 | 7,50 | 11,80 | 21,00 | 33,00 | 52,00 | 103,90 | 181,00 |
| 45 | 43,75 | 46,25 | 8,30 | 12,90 | 23,00 | 35,80 | 56,80 | 111,00 | 191,00 |
| 50 | 48,75 | 51,25 | 9,10 | 14,00 | 25,00 | 38,90 | 61,20 | 118,10 | 201,00 |
| 55 | 53,50 | 56,50 | 9,90 | 15,10 | 26,90 | 42,00 | 65,60 | 126,00 | 211,00 |
| 60 | 58,50 | 61,50 | 10,70 | 16,20 | 28,90 | 45,10 | 70,00 | 133,00 | 221,00 |
| 65 | 63,50 | 66,50 | 11,50 | 17,30 | 30,90 | 48,20 | 74,40 | 141,00 | 235,00 |
| 70 | 68,50 | 71,50 | 12,30 | 18,40 | 32,90 | 51,30 | 78,80 | 149,00 | 247,00 |
| 75 | 74,40 | 75,60 | 13,15 | 19,50 | 34,90 | 54,40 | 83,20 | 157,00 | 259,00 |
| 80 | 78,50 | 81,50 | 13,90 | 20,60 | 36,80 | 57,50 | 87,00 | 165,00 | 272,00 |
| 85 | 84,30 | 85,70 | – | 21,70 | 38,90 | 60,60 | 91,50 | 173,00 | 284,00 |
| 90 | 88,25 | 91,75 | – | 22,80 | 40,80 | 63,70 | 96,00 | 181,00 | 297,00 |
| 95 | 94,30 | 95,70 | – | 23,90 | 42,90 | 66,80 | 100,50 | 189,00 | 310,00 |
| 100 | 98,25 | 101,75 | – | 25,00 | 44,80 | 69,90 | 105,00 | 197,00 | 322,00 |
| 110 | 108,25 | 111,75 | – | 27,20 | 48,80 | 76,10 | 114,00 | 213,00 | 347,00 |
| 120 | 118,25 | 121,75 | – | 29,40 | 52,80 | 82,30 | 123,00 | 229,00 | 372,00 |
| 130 | 128,00 | 132,00 | – | – | 56,80 | 88,50 | 132,00 | 245,00 | 397,00 |
| 140 | 138,00 | 142,00 | – | – | 60,80 | 95,00 | 141,00 | 261,00 | 422,00 |
| 150 | 148,00 | 152,00 | – | – | 64,80 | 101,00 | 150,00 | 277,00 | 447,00 |
| 160 | 156,00 | 164,00 | – | – | – | 107,00 | 159,00 | 293,00 | 472,00 |
| 170 | 168,00 | 172,00 | – | – | – | 113,00 | 168,00 | 309,00 | 497,00 |
| 180 | 176,00 | 184,00 | – | – | – | 119,00 | 177,00 | 325,00 | 522,00 |
| 190 | 188,00 | 192,00 | – | – | – | 125,00 | 186,00 | 341,00 | 547,00 |
| 200 | 195,40 | 204,60 | – | – | – | 131,00 | 195,00 | 357,00 | 572,00 |