DIN 604 Flat Head Countersunk Nib Bolt
Equivalent Standard: UNI 6105
DIN 604 refers to a standard for Flat Countersunk Head Bolt With Nib, also named CSK Head Bolts with a Hex nut. It is used in applications where a flat or countersunk surface is needed, such as in metalwork, construction, and machinery.
DIN 604 specifies the dimension and characteristic of Flat Head countersunk nib Bolts with a nut.
Key features of DIN 604 Flat Countersunk Head Bolt:
Flat countersunk head: The head is designed to be flush or recessed into the surface.
Nib: The bolt has a small, rounded end or “nib” which helps to prevent the nut from loosening.
Nut: The bolt is designed to be used with a matching nut.
BRK Nuts & Bolts is one of the Top manufacturers and suppliers of a high-quality DIN 604 Flat Head Countersunk Nib Bolts that are widely used in various areas like Cement & steel plants, railways, construction and many others for fitting and assembling purposes.
- DIN 604
- Material Grade: 4.6, 4.8, 8.8
- Finish: Self, Black, Bright Zinc, Hot Dip Galvanized
- Thread: METRIC
DIN 604
DIN 604 flat countersunk nib bolts are an essential component in numerous industries and applications. These bolts are designed with a flat, countersunk head that allows them to sit flush with the surface when fully tightened, providing a neat and streamlined appearance. The nib feature on these bolts acts as a built-in washer, ensuring even distribution of load and preventing damage to the surface material. This makes them particularly suitable for applications where aesthetics and smooth surfaces are of utmost importance. Commonly made from durable materials such as stainless steel or carbon steel, these bolts offer excellent strength and corrosion resistance, making them suitable for both indoor and outdoor use. Whether used in construction projects, automotive applications, or furniture assembly, Flat Countersunk Nib Bolts DIN 604.
Technical Specification for DIN 604 Flat Countersunk NIB Bolts
| Nom. Dia. (d) | M6 | M8 | M10 | M12 | M16 | M20 | M24 | |
| Thread Pitch | 1 | 1.25 | 1.5 | 1.75 | 2 | 2.5 | 3 | |
| Thread Length (b) | L < 125mm | 18 | 22 | 26 | 30 | 38 | 46 | 54 |
| 125-200mm | 24 | 28 | 32 | 36 | 44 | 52 | 60 | |
| L > 200mm | – | 41 | 45 | 49 | 57 | 65 | 73 | |
| dk | Max. | 12.55 | 16.55 | 19.65 | 24.65 | 32.8 | 32.8 | 38.8 |
| k | 4 | 5 | 5.5 | 7 | 9 | 11.5 | 13 | |
| g | Max. | 2.5 | 3 | 3.2 | 3.6 | 4.2 | 5.4 | 6.6 |
| α | Min. | 90° | 90° | 90° | 90° | 90° | 60° | 60° |
| L | WEIGHT IN KG/1000 PCS | |||||||
| 20 | 4.90 | 9.50 | 14.90 | |||||
| 25 | 5.90 | 11.10 | 17.40 | 27.70 | ||||
| 30 | 7.00 | 12.70 | 19.90 | 31.40 | 61.80 | |||
| 35 | 8.10 | 14.70 | 22.40 | 35.10 | 69.20 | |||
| 40 | 9.20 | 16.70 | 25.50 | 38.80 | 76.20 | |||
| 45 | 10.30 | 18.70 | 28.60 | 43.20 | 83.20 | |||
| 50 | 11.40 | 20.70 | 31.70 | 47.60 | 90.20 | 128.00 | ||
| 55 | 12.50 | 22.70 | 34.80 | 52.00 | 97.20 | 139.00 | ||
| 60 | 13.60 | 24.70 | 37.90 | 56.40 | 105.00 | 150.00 | 225.00 | |
| 65 | 14.70 | 26.70 | 41.00 | 60.80 | 113.00 | 161.00 | 241.00 | |
| 70 | 15.80 | 28.70 | 44.10 | 65.20 | 121.00 | 173.00 | 257.00 | |
| 80 | 17.90 | 32.70 | 50.30 | 73.80 | 137.00 | 197.00 | 291.00 | |
| 90 | 20.10 | 36.70 | 56.50 | 84.10 | 153.00 | 221.00 | 327.00 | |
| 100 | 22.30 | 40.70 | 62.70 | 93.10 | 169.00 | 245.00 | 363.00 | |
| 110 | 44.70 | 68.90 | 102.00 | 185.00 | 269.00 | 399.00 | ||
| 120 | 48.70 | 75.10 | 111.00 | 201.00 | 293.00 | 435.00 | ||
| 130 | 52.70 | 81.30 | 120.00 | 217.00 | 318.00 | 471.00 | ||
| 140 | 56.70 | 87.50 | 129.00 | 233.00 | 340.00 | 507.00 | ||
| 150 | 60.70 | 94.00 | 138.00 | 249.00 | 364.00 | 543.00 | ||
| 160 | 100.00 | 147.00 | 265.00 | 388.00 | 579.00 | |||