Imperial Plow Bolt Partial Thread Plain Alloy Steel 1-8 * 4-1/2" Grade 8 unf They're reusable

They're reusable

A Yellow Zinc-plated steel provides corrosion resistance in wet environments and adds lubricity so they thread on smoothly

but Yellow Zinc provide a higher corrosion resistance than regular zinc

These bolts are classified as ASME B19

Imperial Plow Bolt Partial Thread Plain Alloy Steel 1-8 * 4-1/2" Grade 8 unf They're reusableThis plow bolt has a length of 4 1 2" with a threading of 1 8 [Partially Threaded]. It is made of plain alloy steel and thus provides low resistance to corrosion in dry and wet environments. The Grade 8 increases its strength against the pressure and has a tensile strength and hardness of 150,000 psi Rockwell C33. Furthermore, it features a shear strength of 90,000 psi. UNC Coarse threads are an industry standard. These bolts are classified as ASME