More info A perfect way to remember Jesus nails on that cross and the price He paid for our forgiveness.
Contrary to popular notion the nails which held Jesus to the cross must have been driven into His wrists and not his palms. Jesus' nails would have been made of heavy, probably square, iron material, 7-9 inches long. Many great painters from the past have depicted Jesus being nailed through His palms to the cross; it is a medical impossibility for this to be the case. You may have to really work your mind to grasp the enormity of what was going on here. The weight of a fully grown man was going to be suspended by three nails.
A nail would have been driven into His arm on one side, and then the other. The legionnaire would make sure that His arms were not pulled too tightly, allowing flexion and movement. With this done, the patibulum was then raised and affixed to the stripe. The next stage involved the nailing of the feet; this was also a deliberate action. The third nail had to be driven through both feet, which were turned outward so the nail could be hammered inside the Achilles tendon. With His knees slightly flexed Jesus was now crucified. As He slowly sagged down, He would have tried to support His weight with the muscles of His legs, an impossible position to maintain. In some cases, the victims' legs were broken, so that they couldn't support themselves in this way. Eventually more and more weight was placed upon the nails. The method the Romans had perfected ensured that crucifixion victims would hang painfully until their diaphragm went into spasm and they literally suffocated to death.