This carriage bolt has a length of 3-1/2" with a threading of 5/16-18 [Fully Threaded]. It is made of 304 stainless steel, provides high resistance to corrosion in dry and wet environments.
The 304 Stainless Steel increases its strength against the pressure and has a tensile strength and hardness of 75,000 psi | Rockwell B79. Furthermore, it features a shear strength of 45,000 psi.
UNC | Coarse threads are an industry standard. These bolts are classified as ASME B18.5 | SAE J429 and comply with dimensional standards.