Trivia: Difference between a bolt and a screw?

[whoaru99]

What's your answer?

No fair looking it up, shoot from the hip.

 

[bolly]

a bolt needs a nut, a screw doesnt.

 

[Njord Noatun]

a bolt needs a nut, a screw doesnt.

Bolly beat me.

 

[pahtcenter77]

What most people call a "bolt" is actually called a "cap screw" in the industry.

What is commonly called a bolt is 1/4" diameter or larger, with a hex head. Allen (internal hex) head are called both bolts and screws.

#12 and smaller, regardless of head type, are generally called screws.

Don't know if that's the politically correct description, but it will save you a lot of time in a hardware store.

 

[pahtcenter77]

a bolt needs a nut, a screw doesnt.

Does that mean you have screws holding the heads on your 454?

 

[Andyman]

No, a bolt needs a threaded retainer, either a a nut or a tapped hole. A screw cuts its own threads as it is driven into the material.

 

[bolly]

lol phatcenter77!!!

 

[gearhound]

bolt.............to run, to flee
screw...........but not fast enough

Steve

 

[kcollins4]

Bolt-outer head, screw-inner head?

 

[whoaru99]

bolt.............to run, to flee
screw...........but not fast enough

Steve

Yup, screw(ed)... usually what happens if you don't "bolt" fast enough.

 

[abpeep]

Screw - tapered thread

Bolt - straight thread

Alan

 

[treserious]

bolt, requiring wrench or rachett

screw, requiring a "screw" driver.

 

[vinyldavid]

bolt, requiring wrench or rachett

screw, requiring a "screw" driver.

DAMN! Right as I was typin that, too!

 

[gadget73]

bolt, requiring wrench or rachett

screw, requiring a "screw" driver.

here's a shoe in the works for you. Sheet metal screws. They're self-tapping, and normally have a 1/4" hex head with a flat or phillips cut into them as well. Technically by your description they're both a bolt and a screw.

 

[pahtcenter77]

I've never had a bolt I would call "memorable".

 

[Aage]

Lol!!

 

[opt80]

I've never had a bolt I would call "memorable".

robbed me LOL

 

[Onkwood]

I wasn't sure of this answer, so I asked the college girl working the checkout at Ace Hardware - "what's the difference between a nail, a screw, and a bolt"?

She said she wasn't sure, as she's never been bolted before.

 

[whoaru99]

This is the answer in a nutshell...

a bolt needs a nut, a screw doesnt.

Bolly gets the dancing banana with the first right answer.

 

[MRX37]

Screws break. Bolts don't, unless they're rusted.