Home & Repair
This section identifies the hardware, fittings, and small mechanisms you encounter when maintaining a home — door hinges, wall anchors, fasteners, and the parts behind them. Entries explain what each component is called, what job it does, and how to choose the right one for the task. You will find entries on why door-hinge pins are removable, what a wall anchor actually does inside plaster, and how screws with an unthreaded shank pull joints tighter. Electrical and load-bearing topics are explained descriptively, with clear boundaries: this is a naming guide, not a repair manual. Always follow local codes and manufacturer guidance for structural or electrical work.
Entries
The Names of Common Drawer Slides
Drawer slides come in several types — wooden, roller, ball-bearing, and telescoping — each with different extension, load capacity, and smoothness. Here is how to identify them.
The Small Parts Inside a Light-Switch Plate
Behind every light-switch plate is a small assembly of screws, springs, and contacts that most people never see. Here are the parts, what they do, and why you should not touch them.
What a Grommet Is Used For
A grommet is a ring inserted into a hole to protect whatever passes through it. It prevents wires from being cut by sharp edges and stops fabric from tearing around a hole.
Why Extension Cords Have Different Plug Shapes
Extension cord plugs vary in shape because they are rated for different current loads. A 15-amp plug is physically larger and has different blade dimensions than a 20-amp plug, preventing you from overloading a circuit.
What a Wall Anchor Actually Does
A wall anchor spreads the load of a screw across a larger area behind the wall surface, so heavy objects stay put even when there is no stud to screw into.
Why Door Hinges Have Removable Pins
Most interior doors hang on loose-pin butt hinges: lift the pin and the door comes off the frame without a single screw being turned.