Thumb bolt, named by its shape with flat lines on its head which looks like a thumb.
We are open to customize for this thumber bolt, making different shape and thickness of the thumb head according to customers’ special need by the drawings.
Haiyan bolt produces this thumb bolt mostly in low carbon steel by white zinc plated surface and black oxided. by special molds, we are capable of providing the stainless steel thumb bolt for the customers.
Used in applications where a fastener is frequently adjusted with easy-grip textured head that allows adjusting and installation to be done simply by hand.