초록 ▼

A capped nut including a metal nut body, first threads on the outside of the metal nut body, a cap including a metallic shell and a non-metallic insert, dimples in the shell, a shoulder on the insert in contiguous relationship to the dimples for preventing the insert from being removed from the shel

A capped nut including a metal nut body, first threads on the outside of the metal nut body, a cap including a metallic shell and a non-metallic insert, dimples in the shell, a shoulder on the insert in contiguous relationship to the dimples for preventing the insert from being removed from the shell, second threads on the insert for mounting on the first threads of the metal nut body, and a rachet arrangement between the insert and the dimples for permitting the shell to override the insert when a turning force is applied to the shell which tends to overtighten the second threads on the insert with the first threads on the nut body but which provides positive engagement between the shell and the insert when a force is applied to the shell for unthreading the cap from the nut body.

대표청구항 ▼

A capped nut comprising a metal nut body, first and second end portions on said nut body, a seating surface on said first end portion for bearing against a foreign object, first force-receiving means proximate said second end portion for receiving a force-applying member for turning said nut body, a

A capped nut comprising a metal nut body, first and second end portions on said nut body, a seating surface on said first end portion for bearing against a foreign object, first force-receiving means proximate said second end portion for receiving a force-applying member for turning said nut body, a cap including a metallic shell and a non-metallic insert, retaining means for retaining said non-metallic insert within said metallic shell, first cooperating means between said nut body and said non-metallic insert for removably mounting said cap on said nut body in covering relationship to said second end portion to thereby conceal said first force-receiving means without contact between said metal nut body and said metallic shell, second force-receiving means on said cap for receiving a turning force for selectively mounting said cap on said nut body to conceal said first force-receiving means and for demounting said cap from said nut body to expose said first force-receiving means for receiving said force-applying member, and second cooperating means between said non-metallic insert and said metallic shell for permitting said metallic shell to rotate relative to said non-metallic insert when said second force-receiving means receive a force tending to rotate said cap in a direction for mounting said cap on said metal nut body and when said cooperating means are in a locked condition which prevents rotation between said non-metallic insert and said metal nut body.