Screws (Junior Cert Wood Technology): Flashcards
📚Flashcards
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15 cards from this deck
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Practise the cards
15 cards from this deck
What are screws?
What are screws?
Fasteners with helical thread converting rotation to linear motion
What is the purpose of wood screws?
What is the purpose of wood screws?
Penetrate wood fibres to hold parts without damage
What are sheet metal screw features?
What are sheet metal screw features?
Sharp tips & fine threads to pierce metal
What are machine screws used for?
What are machine screws used for?
Used in machines with uniform threads for nuts/tapped holes
What are wood screw body features?
What are wood screw body features?
Tapered body & sharp threads
Screw part: Head function
Screw part: Head function
Shapes (flat, round, pan) affect screwdriver choice & look
Screw part: Shank function
Screw part: Shank function
Straight, unthreaded part giving stability
Screw part: Thread function
Screw part: Thread function
Provides grip by embedding into material
Structural difference: screws vs nails
Structural difference: screws vs nails
Screws have threads; nails are smoother & flexible
Holding capability: screws vs nails
Holding capability: screws vs nails
Screws stay tight longer than nails
When to use screws over nails
When to use screws over nails
Furniture - screws allow adjustments/changes
When to use nails over screws
When to use nails over screws
Framing/temporary structures - faster installation
Direction to insert screw
Direction to insert screw
Clockwise
Safety when using screwdriver
Safety when using screwdriver
Wear safety glasses to protect from fragments
Types of screwdrivers
Types of screwdrivers
Slotted, Phillips, and Pozidriv