The spacing is VESA 100, 200 or 400 mm spacing.
Is the hard drive connected to a mounting bracket? If so, what type of screws secure the hard drive to the mounting bracket
The technical term for the screws are called "Hard-Drive Mounting Screws" and you can buy them most anywhere.
Your GPS comes with a bracket, and screws. There should be instructions that tell you how to install the screws into the bracket to provide a stable mounting surface for your GPS.
Because of liability concerns, most manufacturers do not provide specifications on the size of screws or mounting instructions for their televisions. Virtually all TV wall mounts come with a large assortment of screws to fit all TVs with standard VESA mounts. A 55-inch TV will use a M6 (6mm metric) or M8 (8mm metric) screw. The mount will have these screws in various lengths. When you get the mount, use the longest screw possible that you can tighten by hand to hold the bracket to the back of the TV. Do not over-tighten, as you may damage circuit boards or even the LCD panel itself.
Detach the vacuum hose from the vacuum advance unit. Remove the distributor cap and unscrew the two mounting screws. Pull the rotor off the shaft and remove those two mounting screws as well. Unscrew the two advance unit mounting screws and remove the unit from the distributor.
Optional Wall Mount Brackets: The stand can be removed, allowing you to wall-mount the TV using an optional wall-mount bracket. The TV has 4 threaded screw holes with a horizontal spacing of 11-3/4" (300mm) and a vertical spacing of 11-3.4" (300mm). The screw holes all accept M6 (6mm) screws. The TV weighs 37.3 lbs without the stand.
The front bumper on a 1991 Acura Integra is held on by several mounting screws. Remove all the screws and gently pull the bumper off the remaining mounting clips.
To remove the radio remove the mounting screws for the center console. Pull the center console off the 2005 Acura TL. Remove the rest of the mounting screws and pull the radio.
On some vehicles there is a caliper mounting bracket, on others the caliper screws directly to the steering knuckle.
Most 47" Vizio televisions use a M6 (6 mm) metric screw no more than 50mm long. If you have a Vizio-branded mount, you can use screws as short as 20mm.
there should be a mounting bracket that screws onto the door and then the mirror screws to the bracket.
M8. 8mm thread. The length will depend upon the thickness of the mounting plate of your chosen bracket. The wall mounts all come with a large assortment of screws so you can find the righ size.