1/4-15X1 6 Lobe Flat High Low Screw Fully Threaded Black Oxide and Oil (Pack of 50) (15×1 6) Description
6 lobe (torx) drive, with pan head: High Low screw, fully threaded: Black Oxide and Oil It is manufactured by Small Parts It is manufactured in United States
A thread forming screw with a double-lead, consisting of a high and low thread. The lower thread varies in height from 1/3 to 1/2 that of the higher thread, which is sharper and flatter than a standard thread.
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