Round thumb nuts provide a tool-free method of securing in place. They fasten by hand and are used in applications where repeated tightening and loosening may be needed.

Hex thumb nuts combine the benefits of a regular hex nut with a thumb nut. Their larger shape makes them easier to tighten and loosen by hand while their flat sides provide a place for tools to engage with and tighten or loosen the fastener.

Low-profile thumb nuts are round with a low profile for use in tight spaces or as an aesthetic consideration with short male fasteners.