A plate nut, also known as a nut plate, anchor nut or anchor plate, is a stamped sheet metal nut that is usually riveted to a workpiece. These terms are used interchangeably throughout product presentations to describe respective products.
Anchor nuts have a long tube that is internally threaded and a plate with two clearance holes for rivets. They are self-locking nuts resisting loosening under vibrations and torque. They offered in fixed, floating, miniature and countersunk body, versions and one-lug, two-lug, short-lug, corner or right angle body configurations. Unlike fixed anchor nuts, their floating counterparts have a built-in nut that can move slightly to align with the threaded rod. This floating version provides flexibility when installing the bolt or screw.
Anchor nuts in Metric system for aerospace applications are available in different metric sizes, materials and finishes. Those manufactured in accordance with DIN LN 29673 standard are self-locking one-lug anchor nuts designed with a single flange. They are offered by different manufacturers such as HOWMET AEROSPACE (ARCONIC) or PAOLO ASTORI. Suitable for use in environments with temperatures up to 235°C. Commonly used in aerospace for securing components in aircraft and other high-stress applications, they are sold mostly in pieces but also in packs where the number of anchor nuts per pack is indicated after the letters "PK" in the product SKU.
DIN LN 29673 Anchor Nuts' Features:
Material: made from materials such as 25CrMo4 or A286.
Strength: tensile strength of 900 MPa.
Temperature Range: for use in temperatures up to 235°C.
Flange Type: one-sided flange design.
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