Anchors are used to attach an object to a support structure. Common types include concrete anchors, expansion anchors, floor anchors, wall anchors, and specialty anchors.
Bolts are threaded rods or pins that fasten objects together. They usually have a head at one end and a thread at the other. Bolts are secured by threaded nuts, and are available in both metric and non-metric designations.
Preload springs, spacers and washers are used to provide end-play take up or a constant preload for bearings, gears and other mechanical components and assemblies.
Screws are fasteners that consist of a threaded shaft at one end and, typically, a head at the other. They are inserted into solid materials and secured via rotation.
Threaded assemblies are combinations of fasteners with clips, washers or other components to improve the assembly process. SEMs fasteners are a common type of threaded assembly.
Washers are disks of metal or non-metallic material placed beneath a nut, an axle bearing, or a joint, to relieve friction, prevent leakage, isolate, prevent loosening, or distribute pressure.