NAILS vs. SCREWS

Which fastener is stated to have more fastening power?

• Nails

• Both have the same power

• Screws

• Neither

What happens to nails over time, according to the video?

• They become stronger

• They lose their fastening power

• They rust

• They cannot be removed

How do screws gain their fastening power?

• They rely on pressure

• They cut into the material

• They are glued in place

• They are hammered in

What is a primary reason screws are preferred over nails for projects?

• They are cheaper

• They are faster to install

• They are removable

• They are more flexible

What is mentioned as one of the disadvantages of screws?

• They are not strong enough

• They are more expensive

• They cannot be used in wood

• They are too flexible

Why might someone choose nails instead of screws for a project?

• Nails are stronger

• Nails are more ridged

• Nails are faster to install

• Nails are easier to remove

What does the speaker suggest about using adhesives with nails?

• It weakens the nails

• It can enhance stability

• It is unnecessary

• It complicates the project

Based on the whole video, identify if the pros and cons that belong to nails and screws.

Groups:

(a) Screw

,

(b) Nail

• Con: Requires friction to hold material together

• Con: Generally difficult to remove

• Pro: Faster to install

• Con: Less fastening power

• Pro: Generally easy to remove

• Con: More expensive

• Con: Slower to install

• Pro: Cheaper

• Pro: Higher shear strength

• Con: Lower shear strength

• Pro: Cuts into the material with threads

• Pro: More fastening power