Screws can become stripped if you over-tighten them with a screwdriver. A stripped screw, as shown in Figure 2, may get stuck in the screw hole, or it may not tighten firmly.
What will happen if you over tighten screws?
Everyone who has ever worked with fasteners has accidentally messed one up at some point. One of the most damaging ways to do that is by over-tightening, or over torquing the fastener. This can result in stripping screws, snapping screw heads and damaging pre-tapped threading.
How do you tighten a screw driver?
Hold the tip of the screwdriver with one hand as you turn its handle with the other. Grasp the handle with your dominant hand and the tip with your other as close to the head of the screw as you can. Apply enough force to turn the screwdriver clockwise to tighten the screw and the opposite direction to loosen it.
Do not scratch or hit any components when using these tools?
As shown in Figure 2-12, the part retriever, needle-nose pliers, or tweezers can be used to place and retrieve parts that can be hard to reach with your fingers. Do not scratch or hit any components when using these tools.
How do you use a hex driver?
Hex Driver – Use a hex driver, to loosen and tighten bolts that have a hexagonal (six-sided) head. Hex bolts should not be over-tightened because the threads of the bolts can be stripped. Do not use a hex driver that is too large for the bolt that you are using. CAUTION: Some tools are magnetized.
What happens if you over torque?
Typically, an under torqued bolt will deform and be unable to provide as much clamping force as needed. An over torqued bolt will break.
What happens if you over torque head bolts?
When you overtorque above 15% of recommended which in this case would be about 95 ft/lbs you basically turn the fastener into a rubber band. Some of the fasteners will stretch and you will have uneven torque. Add heat and pressure and head gasket blows and the head can even warp.
Is used for tighten or loosen screws?
A screwdriver is one of the most basic tools in any mechanic’s tool kit. It’s used to loosen and tighten screws.
Which way tightens a screw?
Shop-work. Typical nuts, screws, bolts, bottle caps, and jar lids are tightened (moved away from the observer) clockwise and loosened (moved towards the observer) counterclockwise in accordance with the right-hand rule.
What is the caution of Phillips head screwdriver?
The tip should fit snugly into the screw head. If it’s too small, it could mangle the head and make the screw impossible to drive. Never use slotted-head drivers for Phillips-head screws. You’ll damage the screw and the driver.
Is part retriever a hand tool?
Hand Tools (2.2.
Some common hand tools and their uses are: Flat-head screwdriver: Used to tighten or loosen slotted screws. … Part retriever: Used to retrieve parts from locations that are too small for your hand to fit. Flashlight: Used to light up areas that you cannot see well.
What will you do if you Cannot remove a component using a screwdriver?
Do not use a flat head screwdriver to remove a Phillips head screw. Never use a screwdriver as a pry bar. If you cannot remove a component, check to see if there is a clip or latch that is securing the component in place. CAUTION: If excessive force is needed to remove or add a component, something is probably wrong.
What loosens a computer casing screw?
Torx screwdriver – used to loosen or tighten screws that have a star-like depression on the top, a feature that is mainly found on laptop.
What is a hex screw?
Hex bolts, or hex cap screws, are large bolts with a six-sided head (hexagonal!) used to fasten wood to wood, or metal to wood. … Wood screws have many different types of heads, but the most common are round heads and flat heads.
What is hex screwdriver function?
Hex screwdrivers, like all types of screwdrivers, are available in an extensive range of both standard and metric sizes. These screwdrivers can make the process of loosening and tightening hex nuts, bolts and screws much easier.