1,212
edits
Changes
→U Drive
==== U Drive ====
A U drive screw is also known as a hammer drive screw. It is set in a properly sized pilot hole and then driven into place with a hammer. The threads of the screw turn as it is driven, creating the fastening action.
[[File:UDriveUDrive2.pngjpg|framethumb|center|200px|Image reproduced from [http://maxpixel.freegreatpicture.com/Nail-Fixing-Hammer-Hammering-Metal-157381 here]]]
Other types of screw drives are shown in the image below:
[[File:OtherScrewDrivesScrewDriveTypes.jpgpng|frame|center|Image reproduced from [https://commons.wikimedia.org/wiki/File:Screw_drive_types_3.svg here]]]
== Selection criteria of the screw for satellite ==