of the transverse threaded fasteners such as the bolt members 52 as disclosed in fig2 each bolt 52 may extend through an oversized oval or elongated bolt hole 53 in the side of the corresponding needle bar segment 40 before threadely engaging a corresponding threaded hole within the corresponding leg 35 of the mounting bar 32 the oversized hole 53 permits longitudinal or end to end adjustment between adjacent needle bar segments 40 the adjacent opposing ends of the needle bar segments 40 disclosed in fig2 are shown slightly separated such as by a spacing in the order of 0 008 0 010 inches thus lateral adjustment is permitted between adjacent needle bar segments 40 to correct for any slight errors in the needle gauge or to permit localized alignment of the needles 11 and 12 with their corresponding hooks 25 and 26 it will be apparent from the above description that a needle bar assembly 10 has been developed which substantially reduces the cost and time of manufacture and also provides more accurate needle gauges and optionally a needle bar assembly in which the needle gauge may be subject to slight adjustments moreover the needle bar assembly 10 made in accordance with this invention permits the use of a single long mounting bar 32 which may be permanently connected to the push rods 13 and which supports a plurality of replacable and interchangeable needle bar segments which can be utilized for readily replacing worn parts without discarding an entire single long needle bar furthermore needle gauges of varying sizes may be utilized with the same mounting.