This carriage | dome bolt has a length of 8" with a threading of 5/16-18[Partially Threaded]. It is made of zinc plated and thus provide medium resistance to corrosion in both dry and wet environments.
The Grade 2 increases its strength against the pressure and has a tensile strength and hardness of 60,000 psi | Rockwell B69.8. Furthermore, it features a shear strength of 36,000 psi.
UNC | Coarse threads are an industry standard. These bolts are classified as ASME B18.5 | SAE J429 and comply with dimensional standards.