Carriage Bolts
ANSI B18.5 rated
Type 316 Stainless Steel Carriage Bolts have Better corrosion resistance than Type 304. Low carbon chromium-nickel stainless with good weldability and temperature resistance. Max. temp. to maintain corrosion resistance is 1600 degrees F.
This austenitic stainless steel has an increased molybdenum content to increase its resistance to corrosion when compared to other 300 series alloys. 316 is recommended for any application exposed to saltwater (including immersion).
Silicon Bronze Carriage Bolts- Nonmagnetic, corrosion resistance from salt water. B85 Rockwell hardness. 70K PSI Tensile strength.
18-8 Stainless Steel Carriage Bolts are Corrosion-resistant, slightly magnetic.
Grade 5 Zinc-Plated Steel Carriage Bolts are Rust Resistant. SAE J429. C25 Rockwell. 120K PSI Tensile strength.
Grade 2 Zinc-Plated Steel Carriage Bolts are B80 Rockwell with 75k PSI Tensile strength.
Carriage Bolts by Length - Inches | ||||
| .500 | .625 | .750 | 1.00 | 1.25 |
| 1.50 | 1.75 | 2.00 | 2.50 | 2.75 |
| 3.00 | 3.25 | 3.50 | 4.00 | 4.50 |
| 5.00 | 5.50 | 6.00 | 6.50 | 7.00 |
| 7.50 | 8.00 | 8.50 | 9.00 | 10.00 |
| 12.00 | Metric Sizes | |||
Materials | ||
| 18-8 Stainless Steel | 316 Stainless Steel | Black Oxide Steel Finish |
| Silicone Bronze | Grade 2 Hot dipped | Grade 5 Plated Steel |
| Grade 2 Zinc-Plated Steel | ||
Thread Sizes | ||
| 10-32 | 10-24 | 1/4-20 |
| 5/16-18 | 3/8-16 | 7/16-14 |
| 1/2-13 | 5/8-11 | 3/4-10 |
| Metric Sizess | ||