HI-TIGUE

FASTENERS OF THE GENERAL TYPES USED IN LAND, WATER, AIR AND SPACE CRAFT [ , A SHANK WITH AN ENLARGED SECTION FOR PHYSICALLY REACTING WITH THE WALL OF THE HOLE INTO WHICH THE SHANK IS INSERTED, MEANS BEING PROVIDED AT EACH END OF THE SHANK TO HOLD TOGETHER OBJECTS THROUGH WHICH THE SHANK WAS PASSED ]