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2answers
581 views

Which screw and anchor should I use to mount a projector screen?

I have a projector screen which weighs about 8 kg (~17.6 lbs) and to light it up a little for when I don't use it I decided to mount a LED strip behind it. I already bought matching strips of wood (24 ...
1
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1answer
304 views

what sized screw should I use?

I have a projector screen which weighs 26kg and I'm trying to fix it on to the wall. The screen has holes for two screws and I'm wondering what size screw I need to support that weight. To ...
1
vote
2answers
45 views

How do you secure pre-built garage shelving to the frame?

We have built the typical free-standing 4-level garage shelves(similar to this) & want to secure it to the house frame in the garage. The whole thing is pretty sturdy but we just want to be safe ...
1
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2answers
129 views

When installing backer board for wall tiles, do the screws need to be absolutely flush or even pushed into the backer?

I'm asking because some screws will not go in fully flush. But I'm thinking the layer of thinset then tile will surely cover any screws that aren't flush, so tiles won't 'pop' out.
1
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1answer
136 views

When is a 5x40mm confirmat screw appropriate compared to the slightly larger 7x50mm screw?

I'm thinking about getting some confirmat screws for 3/4" material. Should I get the 40mm or the 50mm variety?
1
vote
1answer
51 views

How do I measure for replacement screws?

I'm attempting to replace some screws. The problem is, I don't have any existing to compare against a chart. How can I measure the tapped length and diameter? Obviously, thread spacing is still a ...
0
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1answer
54 views

Screw Size Unit Conversion

I would like to find out what English units of measure are for a screw size described as ST5X70. Where can I get this information?
0
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1answer
81 views

What screwdriver do I need for this 'star' shaped fitting?

I need to unscrew the screw in this picture. It doesn't seem to be using a standard fitting however. What screwdriver so I need for this?
0
votes
3answers
132 views

How to fix a plug socket whose screws don't hold anymore?

I removed the screws of the socket (as shown in the image) to check something, and when I tried screwing it back in, the screw wouldn't hold anymore. It just keeps coming off. I tried sticking the ...
0
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1answer
29 views

Best way to remove anchors from concrete?

The people we purchased our home from put up a wall in the 3 car garage between the 1st and 2nd space, but never finished it and I am now looking to remove the entire wall. There are several ...
0
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1answer
29 views

What screws for attaching 1/2“ ply to 3/4” ply?

I was using all-purpose screws (1 1/4") to attach my second layer of plywood to the under layer. The top layer does not get screwed into the floor joists. A lot of the screws just spin and don't sink ...
0
votes
1answer
109 views

How can I find a replacement screw/bolt?

I have a cast iron Christmas tree stand and I need to replace the screws/bolts. Where can I get them and/or how can I determine the thread so that I can check at a hardware store?
0
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2answers
109 views

Reusing screw holes in lumber

My townhouse has some outdoor stairs built out of 6" x 8" lumber (i.e., the first step is comprised of two pieces of lumber (with no "nosing")). A couple of the steps are rotten and I need to change ...
0
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1answer
317 views

what substance should I use to refill a hole in wood?

I have a small wooden table (ikea) where the legs screw into the table top. The hole - into which one of the legs screw in - became wider, so now the leg is wobbly. How would I fix this? Is there a ...
0
votes
1answer
459 views

What type of screws and rawl plugs should I use?

I have a a framed canvas picture that I need to hang on a the wall. It is about 3 foot in height and 2 foot wide. The wall is made of solid brick but has been boarded over with plasterboard and then ...
0
votes
1answer
124 views

What type of tool do I need to remove this screw?

As the title says. I need to remove this type of screw, but don't know what tool to use. Does anyone know where can I get the screwdriver for this?
0
votes
1answer
214 views

Connect Unistrut/Superstrut to the garage ceiling

I'm planning on building storage above my garage door using an 8' x 4' platform from plywood and 2x4s. One 8' side would attach to the garage wall with lag screws. The other 8' side would be attached ...
0
votes
1answer
182 views

How is this screw head called? [duplicate]

I want to disassemble a broken hair dryer (just to see what's inside), but I just found out it uses a weird tamper-proof screw I had never seen in my life. Trying to google for it doesn't help much; I ...
0
votes
2answers
933 views

When Laying Tongue and Groove plywood over 1x6 subfloor, do I lay it with the grain perpendicular to the floor joists or to the 1x6 boards underneath?

I am redoing a bedroom and I am in the process of installing a new sub floor. I currently have 1x6 running perpendicular to the floor joists. Some do have a bit of give to them. I am laying over that ...
0
votes
1answer
460 views

Removing broken screw from electrical box

How can I remove a broken screw from an electrical box? I have added a picture below. I was attempting to replace the outdoor outlet, as I described in this question. I was using a brand new screw ...
0
votes
4answers
575 views

how to remove a tiny screw that won't spin? [closed]

A friend asked me to have at a look at his 'broken' laptop and here's a picture of one of the screws. Click for larger view I've been trying to remove it for about 15 minutes. It's in a 'hole' of ...
0
votes
2answers
2k views

The right-handed (RH) thread vs the left-handed (RH) thread in screws

I know that there are screws with these features and know how to distinguish them. What type of screws should I use? Usually there are screws on the right thread.
0
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2answers
137 views

How can I fix a screw that has been stripped

Is it possible to fix a screw that has been stripped? It is not an uncommon problem to run into when you are into the DIY projects. I personally have come across this quite frequently. I would like a ...
0
votes
5answers
5k views

What kind of drill bit would I use to grind down the end of a protruding screw?

Let's say I have a 1"-thick piece of wood. A 1 1/4" screw is driven through the wood, resulting in 1/4" of the screw protruding out the other side. What type of drill bit would I use to grind that ...
0
votes
1answer
95 views

Which thermal circuit breaker should I buy?

I live in a small house in Argentina where we use 220 volts. I have a thermal circuit breaker that do squeak noises when the iron starts or the fridge starts. I adjusted the four screws of the breaker ...
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votes
1answer
201 views

How to dig a hole for a specific screw?

Yesterday I combined pieces of furniture into a whole desk. But how are the holes in furniture dug in the first place?
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1answer
1k views

How many screws are there in a 5lb box of 3 inch screws?

About how many screws are in this 5lb box? Deck Mate #9 x 3 in. Tan Polymer-Plated Flat-Head Star Wood Screws (5 lb. Pack)
-4
votes
3answers
215 views

How to unscrew the two screws on my USB hard disk enclosure? [closed]

On my USB enclosure of laptop hard disk, there are two screws on both sides in the picture. I have tried to use one screw driver in the left panel of my toolbox, and its head can fit into the ...