Bolt — Carriage Bolts
Carriage Bolts
Carbon steel carriage bolts (coach bolts) in grades 4.8, 5.8, 6.8 and 8.8. Round mushroom head with square neck. To DIN 603, ANSI, ISO 8677, BD and GB standards.
DIN 603ISO 8677ANSI
Technical Specifications
ParameterValue / Range
- Standards
- DIN 603 / ANSI / ISO 8677 / BD / GB
- Material
- Carbon Steel
- Grade
- 4.8 / 5.8 / 6.8 / 8.8
- Diameter
- 5mm to 20mm / 1/4" to 3/4"
- Length
- 15mm to 300mm / 1/2" to 12"
- Thread
- MM / UNC / UNF / BSW
- Finish
- Plain / Zinc / Black / Nickel / Chrome / H.D.G
Size Range
5mm to 20mm dia / 15mm to 300mm length
Standards
DIN 603 · ISO 8677 · ANSI

Available Sizes & Dimensions
7 sizes| Size | Length Range | Grade / Class | Standard | Finish | Enquire |
|---|---|---|---|---|---|
| 5mm / 1/4 | 15-300mm / 1/2"-12" | 4.8 | DIN 603 | Plain / Zinc | Enquire |
| 6mm / 1/4 | 20-300mm / 1/2"-12" | 4.8 | DIN 603 | Plain / Zinc / Black | Enquire |
| 8mm / 5/16 | 20-300mm / 3/4"-12" | 5.8 | ISO 8677 | Zinc / Nickel | Enquire |
| 10mm / 3/8 | 25-300mm / 1"-12" | 6.8 | DIN 603 | Zinc / Chrome | Enquire |
| 12mm / 1/2 | 30-300mm / 1"-12" | 6.8 | ANSI | Zinc / HDG | Enquire |
| 16mm / 5/8 | 40-300mm / 1-1/2"-12" | 8.8 | DIN 603 | HDG | Enquire |
| 20mm / 3/4 | 50-300mm / 2"-12" | 8.8 | ISO 8677 | HDG | Enquire |
Don’t see your size? We manufacture custom specifications — contact us with your exact requirements.
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+91-9841314367 (Mr. Mustafa)ISO 9000:2008 Certified
Quality assured since 2005 · Est. 1969
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Standard stock and custom specifications. Same-day dispatch available on select sizes.
