ABSTRACT

Finally, the fastener must be incorporated without difficulty into the overall structural design of a product. The performance of fasteners from different materials may not always be the same for the same material in each test. Part of this problem was recognized a number of years ago with the development of the MIL-STD-1312 series of fastener test procedures. This is documented in Table 19 along with tests for magnetic particle inspection, plating thickness, and metallography. Standardization of tests is necessary in the presentation of any data on fastener materials and the fasteners made from them. (See also Chapter 52.)

NAS1069 (National Aerospace Standards)

AS1310 (SAE) Fastener Torque for Threaded Applications, Definitions of. Torque-tension/preload

Magnetic particle inspection AMS 2640 (SAE) MIL-STD-271

Federal Test Method Standard STD No. 1516. Liquid penetrant inspection

Plating thickness MIL-STD-1312-12 ASTM-8504 ASTM-8659

ASTM-8487 ASTM-8530 ASTM-E376

Federal Test Method STD No. 151, Methods 520.1 and 523.