Fastener Solutions offers a variety of finished and heavy hex jam nuts for a range of industries. Typically used in situations where a standard nut wouldn’t fit, jam nuts are tightened directly. against the work surface. Jam nuts are also known as thin hex nuts because their low profile are normally half the height of a standard nut. Order the supplies you need for your next job online and have them shipped right to your door. If you don’t see what you’re looking for on our website contact one our helpful staff members.