2007-02-05 02:02:51 · 9 answers · asked by Anonymous in Home & Garden ➔ Maintenance & Repairs
What is the material? For wood, my preference is screws, especially the full length threaded screws like "dry wall" screws, because they "pull" the two units together. The compression in the wood over the large surface area of threads and shank ensures steady hold over long periods of time while the wood shrinks.
For large projects, like attaching 4x4 posts, I like the "lag" bolt. This is a long, large diameter screw with a hex head for the torque a wrench provides. This also pulls the pieces together over large areas of internal wood contact. (Use a washer under the head to prevent crushing the fibers.) Note: because of the lag bolt's sheer size, a small pilot hole is needed to ensure not splitting the wood. The internal compression is still working.
Generally speaking, if you use bolts and nuts with washers in wood projects, you drill a hole--remove wood-- to pass the bolt through. By tightening the nut, you only "squeeze" the pieces together at two points of small area, crushing fibers in the process. As the wood shrinks over time, you have to re-tighten the nuts, crushing more fibers.
For metal and other easily drilled materials with no fibers like wood, I use nuts and bolts. Here the squeezing is sufficient. The material will not shrink, and lock washers will make the union practically unmoving. There will be occasions for other methods like pop-rivets, self-tapping screws, brick or concrete block fasteners, but you didn't ask that. Donna
2007-02-05 05:54:51 · answer #1 · answered by donnadot 2 · 0⤊ 1⤋
A carpenter uses more screw than bolts. An engineer uses more bolts. Bolts are more time consuming but a lot stronger
2007-02-05 08:40:01 · answer #2 · answered by Professor 7 · 1⤊ 0⤋
Nails are made by man s...ask any god son about those... Thor got a hammer.. The screw is just a helical ridge, or just thread, wrapped around a cylinder nothing about nails... ask Archimedes about those ... Lets check again , nails...man made, screw man made,deities man made... Creationism evolution to ID.... not very intelligent design... They try to sneak again in science classes...and fail
2016-03-29 05:54:06 · answer #3 · answered by Anonymous · 0⤊ 0⤋
you would use a bolt when you can get to the back side of it to put the nut on, if you cant then screw it. if a nut would be unsightly on the backside then use a screw. it all depends on the application
2007-02-05 04:22:23 · answer #4 · answered by Anonymous · 0⤊ 1⤋
I like to screw. My wife tells me though that I am a big man and that I am actually "bolting" her very hard!
2007-02-05 02:14:41 · answer #5 · answered by redbird 2 · 0⤊ 2⤋
How important is it with what you are fastening?
The more important it is, the more you should use bolts where ever practical.
2007-02-05 02:26:22 · answer #6 · answered by Floyd B 5 · 0⤊ 1⤋
how do you expect a sensible answer with such an incomplete question give more info and you will get back better answers
2007-02-05 05:10:08 · answer #7 · answered by boy boy 7 · 2⤊ 0⤋
they are both important just both have different uses.
2007-02-06 07:47:58 · answer #8 · answered by Anonymous · 0⤊ 0⤋
i prefer a screw any time
2007-02-05 02:11:18 · answer #9 · answered by meagain 1 · 1⤊ 2⤋