MS21042-04 4-40 Thread Stop NUT

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The MS21042 all-metal stop nuts are designed for use in high temp installations (up to 450°F). MS21042 nuts are shorter than the AN363 nut but develop the same tensile strength. MS 21042 Hex Nuts (Lubed) are the same as MS21042- but have a dry film lube (dark grey). Less 20% for quantity 100/Part No. Show more