DIE POINT: One of the least expansive pointing operations applied at the time of heading. This operation provides an end chamfer starting with a diameter smaller than the root diameter of the thread. The minimum reduction of the point is approximately 10% below the maximum minor diameter with an indulged angle of 40 to 50.

DOG POINT: A straight pointed section reduced in diameter below the root diameter of the thread, usually extending in length about two-thirds the diameter of the thread. Recommended for ease in starting, to insure against stripping fine threaded products, and to increase efficiency along production lines.

ROLLED POINT: An efficient method of producing pointed long studs or long screws with an end chamfer similar to the Die Point. The last thread and a half is slightly cuffed by the thread roll-over operation.

PINCH POINT (ROUNDED): An inexpensive method of applying a 40 , 60 or 90 lead-in point having a slightly rounded contour but with pinch-off marks on its surface. Used for aligning sheets or assembling several parts requiring pilot action.

NAIL POINT (PINCHED): Usually supplied with an approximate 45 included angle having a sharp point and slightly squared surface. Used for impinging or locking against wood or other soft material. Other degrees of included angle and sharpness also available.

CUPPED POINT: A special cup section supplied on the end of the threaded member having a depression in the end to reduce the area in contact with the surface which increases its holding and locking power under pressure.

ROUND POINT: A dome-like rounded surface applied to the end of a threaded member in order to offer pressure without disfigurement. Used for adjusting members where friction without cutting action is desirable.