This hexagonal bolt has a length of 3" with a threading of 3/8-16 [Fully Threaded]. It is made of silicon bronze, a material that does not corrode.
The Silicon Bronze increases its strength against the pressure and has a tensile strength and hardness of 70,000 psi | Rockwell B70. Furthermore, it features a shear strength of 42,000 psi.
UNC | Coarse threads are an industry standard. These bolts are classified as ASME B19.2.1 | SAE J429 and comply with dimensional standards.