Knurled Bolt Stainless Steel Crown Computer Case Hand Thumb Screw

The knurled bolt hardware used to secure parts of a PC to the case. Although there are numerous manufacturers of computer cases, they have generally used three thread sizes. The Unified Thread Standard (UTS) originates from the United States while the ISO metric screw thread is standardized worldwide. Ever Hardware provides the custom-made knurled bolt and customizable packaging.

In turn, these thread standards define preferred size combinations that are based on generic units—some on the inch and others on the millimeter. The #6-32 UNC screws are often found on hard disk drives and the case’s body to secure the covers. The M3 threaded holes are often found on optical disc drives and floppy drives. Motherboards and other circuit boards often use a #6-32 UNC standoff. #4-40 UNC thumbscrews are often found on the ends of DVI, VGA, and older Serial and Parallel cables.

Knurling is a manufacturing process, typically conducted on a lathe, whereby a pattern of straight, angled, or crossed lines is cut or rolled into the material. The operation is performed for producing indentations on a part of a workpiece. Knurling allows hands or fingers to get a better grip on the knurled object than would be provided by the originally smooth metal surface. Occasionally, the knurled pattern is a series of straight ridges or a helix of “straight” ridges rather than the more-usual criss-cross pattern.
Knurling may also be used as a repair method: because a rolled-in knurled surface has raised-up areas surrounding the depressed areas, these raised areas can make up for wear on the part.

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