Special Features:

Int rectangular thd, pitch diameter equals 2.4577-2.4522, four thds per in., 2.003 in. Min 2.008 in. Max major diameter and 1.903 in. Minor dia, thd height 0.050 in. Min 0.052 in. Max, groove width 0.127 in. Min 0.133 in. Max on major dia, distance between grooves 0.117 in. Min 0.123 in. Max on minor dia; one end w/ four driving slots 0.190 in. W x 0.190 in. Dp spaced 90.0 degrees apart; other end thd releived 0.190 in. Lg x 2.415 in. Min 2.420 in. Max dia

Properties:

A cylindrical item which may have wrenching and/or driving facilities and/or shoulders. It is designed to be inserted in a drilled or a pretapped hole, or molded or pressed into soft material to reduce the size of a tapped hole; to provide threads; to add strength, and/or to prevent stripping. It is one of the following: (1) a one-piece, flanged or unflanged, internally threaded item which may have external threads, and/or serrations around the periphery of the collar, designed to engage a serrated lock ring which is not included with the item; (2) a one-piece precision coiled wire; (3) a two-piece item consisting of an internally threaded cylinder and a mating externally threaded part; or (4) a one-piece internally threaded item whose outside diameter is tapered and/or knurled and/or with fin(s). The internal thread of the item may have a locking feature. Excludes items having a sleeve on its underportion which can be clinched or crimped. Excludes bushing, machine thread; nut, plain, knurled; nut, plain, round; nut, plain, clinch and nut, self-locking, clinch. See also nut, plain, plate.