Airfasco AN4 Aircraft Bolt, 1/4-28, 1.781 in Long, 1.312 in Grip, Undrilled, Cadmium Plated, Pack of 50, AN4-16A
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Airfasco AN4-16A is an alloy steel AN hex head airframe bolt with a 1/4-28 UNF-3A thread and yellow cadmium plating. It is the undrilled, non-locking version, with no hole in the head or threads. Sold as a pack of 50.
- Thread length 0.468 in, shank diameter 0.246 to 0.249 in
- Hex 0.428 to 0.440 in across flats, head height 0.140 to 0.172 in
- Heat treated per AMS-2759 to HRC 26 to 32
- Minimum single shear 3,680 lb, minimum yield 3,130 lb
- Head marked with the maker's AFC logo and X alloy steel grade mark
- NSN 5306-00-151-1418
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