Product Description
M5 metric A2 stainless steel cup square carriage coach bolts, manufactured to DIN 603. These coach bolts are made from A2 stainless steel, giving good corrosion resistance for general indoor, outdoor and damp applications.
The mushroom head gives a smooth, low-profile finish, while the square neck under the head helps prevent the bolt from turning once seated into timber or a suitable square hole. These bolts are measured from under the head and are commonly used in timber, fencing, gates, furniture, brackets, frames and general construction applications.
These M5 coach bolts have a standard metric coarse M5 x 0.8mm thread pitch and an approximate 13mm head diameter. Available in lengths from 12mm to 120mm, with pack sizes suitable for single jobs, workshop use and bulk stock.
- M5 metric coach bolts
- A2 stainless steel
- Cup square / carriage bolt design
- Mushroom head with square neck
- DIN 603 standard
- Metric coarse thread
- M5 x 0.8mm pitch
- Approx. 13mm head diameter
- Lengths from 12mm to 120mm
- Measured from under the head
- Available in small and bulk pack sizes
Also known as M5 coach bolts, carriage bolts, cup square bolts, mushroom head bolts, DIN 603 bolts and A2 stainless coach bolts.

| A | B | C | D |
| 5mm | 100mm | 13mm | 0.8 |
| 5mm | 110mm | 13mm | 0.8 |
| 5mm | 12mm | 13mm | 0.8 |
| 5mm | 120mm | 13mm | 0.8 |
| 5mm | 16mm | 13mm | 0.8 |
| 5mm | 20mm | 13mm | 0.8 |
| 5mm | 30mm | 13mm | 0.8 |
| 5mm | 35mm | 13mm | 0.8 |
| 5mm | 40mm | 13mm | 0.8 |
| 5mm | 50mm | 13mm | 0.8 |
| 5mm | 60mm | 13mm | 0.8 |
| 5mm | 70mm | 13mm | 0.8 |
| 5mm | 80mm | 13mm | 0.8 |
| 5mm | 90mm | 13mm | 0.8 |
Please Note: Specifications given are intended as a guide only. If critical to your project please check with us first.