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What are Carriage Bolts?
M6 x 35mm Carriage Bolts (DIN 603) - A2 Stainless Steel
| Metric or Imperial? | Metric |
| Thread Size (T) | M6 (6mm) |
| Head Diameter (D) | 15.45mm |
| Length (L) | 35mm |
| Screw Material | A2 Stainless Steel |
M8 x 35mm Carriage Bolts (DIN 603) - Black A2 Stainless Steel
| Metric or Imperial? | Metric |
| Thread Size (T) | M8 (8mm) |
| Head Diameter (D) | 19.35mm |
| Length (L) | 35mm |
| Screw Material | A2 Stainless Steel - Black |
M6 x 60mm Carriage Bolts (DIN 603) - A2 Stainless Steel
| Metric or Imperial? | Metric |
| Thread Size (T) | M6 (6mm) |
| Head Diameter (D) | 15.45mm |
| Length (L) | 60mm |
| Screw Material | A2 Stainless Steel |
M6 x 55mm Carriage Bolts (DIN 603) - A2 Stainless Steel
| Metric or Imperial? | Metric |
| Thread Size (T) | M6 (6mm) |
| Head Diameter (D) | 15.45mm |
| Length (L) | 55mm |
| Screw Material | A2 Stainless Steel |
M6 x 40mm Carriage Bolts (DIN 603) - A2 Stainless Steel
| Metric or Imperial? | Metric |
| Thread Size (T) | M6 (6mm) |
| Head Diameter (D) | 15.45mm |
| Length (L) | 40mm |
| Screw Material | A2 Stainless Steel |
M10 x 130mm Carriage Bolts (DIN 603) - A2 Stainless Steel
| Metric or Imperial? | Metric |
| Thread Size (T) | M10 (10mm) |
| Head Diameter (D) | 23.35mm |
| Length (L) | 130mm |
| Screw Material | A2 Stainless Steel |
M6 x 25mm Carriage Bolts (DIN 603) - A2 Stainless Steel
| Metric or Imperial? | Metric |
| Thread Size (T) | M6 (6mm) |
| Head Diameter (D) | 15.45mm |
| Length (L) | 25mm |
| Screw Material | A2 Stainless Steel |
M12 x 100mm Carriage Bolts (DIN 603) - Black A4 Stainless Steel
| Metric or Imperial? | Metric |
| Thread Size (T) | M12 (12mm) |
| Head Diameter (D) | 29.35mm |
| Length (L) | 100mm |
| Screw Material | A4 Stainless Steel - Black |
What are Carriage Bolts?
Carriage Bolts are a robust and durable fastener solution, featuring a domed head, which can help prevent loosening from one side. Carriage Bolts also feature a square section underneath their head, which makes them self-locking when used within a square hole. These components are manufactured with a minimum thread length, Full Thread Carriage Bolts are also available.
Bolt Materials
In addition to A2 Stainless Steel, Carriage Bolts are available in A4, also called Marine Grade Stainless Steel. Additional features such as Chemical Blackening and Thread Locking Patches are also available for Accu's Stainless Steel Carriage Bolt range. For alternative material types of bolts in this range, please contact our team.
Metric Bolts
Metric Carriage Bolts are manufactured according to DIN 603. Diameters of between M5 and M16 are available as standard, with lengths of between 25mm and 300mm also available. Head Diameter sizes range from 12.45mm to 37.2mm.
Imperial Bolts
Accu's range of Imperial Carriage Bolts conform to ANSI standard B18.5. Diameters range from ¼ inch up to ¾ inch, and lengths from 4.1/2 inch up to 18 inch. Imperial Bolt Head Diameters start from 0.594 inches and go up to 1.594 inches.
Coach Bolts vs Carriage Bolts
To learn more on the distinctions between these two popular types of bolt, please take a look at our article discussing the differences in these fasteners.
Bespoke Carriage Bolts Manufacture
High precision, bespoke manufacture of Carriage Bolts to customer specification. State of the art facilities specialising in both small batch prototyping and large scale manufacture.
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