Road Crash Barrier Bolts (Nib Bolt) Manufacturer
A DIN 607 Nib Bolt also known as Road Crash Barrier Bolts, Rail Guard Fasteners is a specialized type of Fastener characterized by a small rectangular or triangular projection, or “NIB” located beneath the head of the Bolt. This nib bolts is used for installation of road crash barriers /guard rail at the roads sides and turning points of roads for the safety of vehicles and passenger to reduce the Impact of Accident. Carriage Bolts, Button Head Bolts, Hex Bolts (931) are related to the Road Crash Barriers.
Road crash barrier bolts, also known as Nib Bolts, are specialized fasteners used for installing and securing highway guardrails and crash barrier systems.
Anti-Rotation Function: The nib of the Nib Bolts fits into the slot of the crash barrier beam and prevents the bolt from rotating during installation. This design ensures quick installation and anti-rotation to ensure secure fastening of guardrail systems on roads.
As a trusted Road Crash Barrier Bolts Manufacturer, we produce high-quality Nib bolts widely used in:
- Highway crash barriers
- Guardrail systems
- Road safety barriers
- Infrastructure projects
- Bridge safety installations.
Road crash barrier bolts are manufactured according to highway infrastructure standards.
- DIN 607
- Length: 35 mm to 50 mm
- Material Grade: 4.6, 8.8, 10.9
- Finish: Bright Zinc Plating, Hot Dip Galvanization
- Thread: Incomplete METRIC Thread.



DIN 607
Road crash barrier bolts/ Guard Rail Bolt also known as Nib Bolts, are specialized fasteners used for installation of Road Crash Guard at turning Roads or Hill Side areas to safe guard vehicles from fatal Accidents. These bolts play a critical role in road safety by Minimizing the Impact of Accident by providing strong and reliable fastening for metal beam crash barriers.
Applications
W-beam & thrie-beam guardrail connections (road/highway Crash barriers).
Bridge railings, crash cushions, steel safety fences.
Rail Crash Barrier
-
Guard Rail System
Advantages of Nib Bolts
Nib bolts provide several advantages compared to standard bolts.
Prevents bolt rotation during installation
Ensures secure and tight fastening
Improves installation efficiency
Designed specifically for crash barrier systems
Durable and corrosion resistant

Technical Specification for DIN 607 Cup Head Nib Bolt
| d | M8 | M10 | M12 | M16 |
|---|---|---|---|---|
| p | 1,25 | 1,5 | 1,75 | 2 |
| b | 22 – 28 | 26 – 32 | 30 – 36 | 38 – 57 |
| dk | 16,55 | 19,65 | 24,65 | 30,65 |
| ds | 8 | 10 | 12 | 16 |
| k | 6,38 | 7,45 | 9,65 | 11,75 |
| i | 2,3 | 2,7 | 3,2 | 3,5 |
| g | 3 | 3.2 | 3.6 | 4.2 |
| r1 | 8.9 | 10.5 | 13.3 | 15.8 |
| Weight 1000 pcs. Bolt kg | ||||
| l | M8 | M10 | M12 | M16 |
| 30 | 15,3 | |||
| 35 | 17,1 | 27,3 | ||
| 40 | 19 | 30,2 | 49 | |
| 45 | 20,8 | 33,2 | 53,3 | 98 |
| 50 | 22,7 | 36,1 | 57,5 | 105 |
| 55 | 24,6 | 38,9 | 61,7 | 113 |
| 60 | 26,5 | 41,8 | 65,9 | 122 |
| 65 | 28,4 | 44,7 | 70,1 | 129 |
| 70 | 30,3 | 47,6 | 74,3 | 136 |
| 80 | 34 | 53,4 | 82,7 | 151 |
| 90 | 59,3 | 91 | 165 | |
| 100 | 65,1 | 99 | 180 | |
| 110 | 107 | 195 | ||
| 120 | 115 | 210 | ||
| 130 | 226 | |||
| 140 | 241 | |||
| 150 | 257 | |||
| 160 | 273 | |||
If you are looking for a reliable Road Crash Barrier Bolt / Nib Bolt Manufacturer, contact us today for product specifications, pricing, and bulk order support.
Our team will help you select the right Fastener solution for your road safety and infrastructure projects.
