Questions tagged [screws]

Questions relating to threaded fasteners and their use.

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How can I remove or cover a screw stuck in my drywall?

The Phillips head screw was used to hold a floating shelf on bedroom wall. The head of the screw became stripped, so my child decided to try to fix the problem themselves by digging out the drywall ...
Don's user avatar
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1 vote
1 answer
1k views

Trouble matching a screw - are there sizes I may be overlooking?

I am trying to mount a new light fixture which has a decorative head for the screws that hold the fixture to the plate. One of the screws is too long for the existing fixture, so I attempted to look ...
Tumbleweed53's user avatar
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3 answers
801 views

Wall-to-wall desk with battens

I'm planning to build a wall-to-wall desk in a brick alcove using wooden battens to hold the desk up. I'm doing this post to find out what size screws and plugs I need and if I'm using the correct ...
Craig's user avatar
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1 answer
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Remove a screw stripped head with the reverse and hammer function of a power drill, instead of a lefthanded drill bit?

I just learned about left-handed drill bits that can be used to removed screws with stripped heads. However, without those lefthanded drill bits available, can I use the normal (right-handed) drill ...
David Ta's user avatar
3 votes
3 answers
9k views

What screw size can I go to when re-tapping an M6 bore?

I purchased a used jointer. The fence should've been held by two M6x20 bolts (according to the manual) to the body of the jointer. When I went to attach the fence, I noticed two wood screws and the ...
Maxwell55's user avatar
1 vote
2 answers
71 views

Will this screwdriver set fit into my corded Bosch GSB 450?

I've this drill. My aim is to drive screws using this driver (not really worried about the drill bits, those are just bonus) I've seen numerous videos on YouTube but all use the holder end (screenshot ...
asprin's user avatar
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3 votes
4 answers
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Why do screw thread diameters vary from their nominal values?

I'm trying to identify several screws. Guides online are fairly straightforward - measure the diameter of the thread part, and pitch if possible. However, none of my screw measurements make any sense. ...
Aloha's user avatar
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2 votes
2 answers
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Does spacing of screws matter for the holding strength?

I'm attaching a TV wall mount which is shown in the image to external studs that I will install in front of the wall. Does it matter for the holding strength which holes on the TV mount I use, those ...
Ross Smalls's user avatar
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2 answers
2k views

bathroom aerator doesn't want to screw tightly into place

We have 2 identical faucet. We change the aerator of 1 without trouble. The second one is not staying in place. We tried to put some silicone around the threaded faucet, but it is not working. We are ...
carole deleidi's user avatar
3 votes
1 answer
162 views

Do slotted screws indicate old fixtures? How old?

I have been doing renovations in my apartment, which is in a building that is at least 120 years old. I have noticed that many of the fixtures I remove are installed with slotted screws. I don't see ...
HotDogWater's user avatar
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3 answers
7k views

How to remove tight screws from wall plug?

I have concrete wall (plastered), 8 mm holes, plastic wall plugs, intact Philips head screws, and a bracket outside. Accidentally I screwed the screws too tight. They stuck at one point, and won't ...
Gergely Kalmár's user avatar
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2 answers
799 views

Mounting screws into thin plastic decoration

I'm trying to mount a smart doorbell on a doorframe. The problem is that the latter runs a decorative "pillar" made out of thin plastic (see photo) with a gap between the plastic and the ...
Alexander L. Belikoff's user avatar
12 votes
4 answers
8k views

What screwdriver I should use for this screw head?

I am trying to unscrew the screw head you see in the picture. It is from the kitchen faucet handle. From looking online, it is usually a hex screw head. I tried a hex-key wrench, it didn't work, and ...
Lloyd's user avatar
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1 vote
2 answers
3k views

Need help finding the right replacement screws

I have lost the screws for my digital Piano, and would like to buy new ones from Home Depot or a local hardware store. The manual has some info, but it seems that I also need the tread size to find ...
narengi's user avatar
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1 answer
109 views

How can I keep these hook mounting screws tight?

I have four hooks from ikea and one periodically has the main hook part come off the screws that attach it to the mounting plate. Should I use adhesive to ensure the screws won’t come loose, or ...
Sᴀᴍ Onᴇᴌᴀ's user avatar
0 votes
2 answers
251 views

Safe mounting of decorative hook with small holes

I have a few of these hooks I'd like to mount, but I'm having trouble figuring out the right way to secure them. I determined the holes are a bit wider than 7/64 inches by passing that size drill bit ...
shim's user avatar
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1 answer
343 views

Attaching metal studwork to a drywall (not the other way around!)

So I'm about to put a metal stud partition wall into my utility room which is a converted garage itself. The existing walls are plasterboard (I think this is called drywall in the states..) the South ...
John Hunt's user avatar
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3 votes
1 answer
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Are Construction Screws equivalent to a framing nails?

I am not asking for opinions or what is better than the other. I am looking for literature with data that shows the specifications and guidance on how to compare them with each other on a performance ...
Turtle Turtle's user avatar
0 votes
1 answer
1k views

Remove screw from lock cylinder

I need to replace the cylinder in our front door lock (just bought the home and need to make sure nobody but us has the key). However, the screw that fixes the cylinder in place gets stuck. It gets ...
Acrofales's user avatar
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2 answers
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What glue & screw/bolt/nut to use to fix the bathtub drain overflow?

I was cleaning the bath tub and I had unscrew a cap from the side of bath tub (where the hole is located) below: The cap consists of 2 parts:Part A & B as below When I removed part B, there was ...
hunterex's user avatar
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1 vote
4 answers
143 views

Is this "sunken scew head" on the underside of a pan head a thing? [closed]

I saw listing which was described as a "sunked screw head"-- which I know as meant for a countersunk hole that tapers. Here is a copy of the photo where I can see a gap at the underside of ...
Zhro's user avatar
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0 votes
2 answers
825 views

Proper sized screws to attach whiteboard on wall

I need to attach a 120 x 200 cm (47.2" x 78.7") whiteboard to a concrete wall with some plaster on it, and the whiteboard arrived with 4 screws which seem kind of small to me. I will be ...
Anu's user avatar
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2 votes
2 answers
2k views

How to keep plastic concrete screw anchors from spinning?

I keep on getting these concrete anchoring kits in floor safes that consist of a 1/2" plastic insert and lag screw. (see photo) The instructions say to drill a 1/2" hole in the concrete, tap ...
feetwet's user avatar
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Correct Screw length I should be buying

Can you help me out. I am planning to install this (https://www.homedepot.com/p/Rubbermaid-70-in-White-Twin-Track-Upright-for-Wood-or-Wire-Shelving-FG4B8900WHT/100047070) in my cabinet to add ...
Hawk's user avatar
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-1 votes
1 answer
254 views

Is screw/nut zinc vs zinc plating as advertise or a manufacturer shorthand?

I bought a set of machine screws and nuts which say "zinc" on the product. I also bought a box of locknuts from a different manufacturer which says "zinc plated" on it. Is the box ...
Zhro's user avatar
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0 votes
4 answers
3k views

What drill bit for what screw tap?

If I want to drill a hole for use with an M3 (or other metric size) do I need a special lookup table or do I simply use an M3 bit with an M3 tap?
Zhro's user avatar
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1 vote
1 answer
2k views

What screws to use to hang bathroom mirror cabinet?

I have bought a bathroom mirror cabinet which has a mirror on the front door. The door has hinges on its left. There are 4 screw holes on the back near the corners. The box did not come with any ...
gyuunyuu's user avatar
  • 325
8 votes
2 answers
2k views

How do I identify and replace unusual screws?

I've got a desk held together by these really strange screws below. The tapped end goes into one end of a joint, the plastic piece goes into the other end of the joint, and then the head of the screw ...
TheEnvironmentalist's user avatar
0 votes
1 answer
175 views

How to measure screws?

I was just looking at some timber screws online and was confused about the sizing. For example, the dimensions of one screw were, "18 - 7 x 200mm". Another one was 14g x 150mm. From what I ...
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2 answers
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Better screws to mount shelving standards

I really REALLY love the John Sterling Fast Mount Shelving system. I use it all over my house. Presently I have been using #8 2-1/2" drywall Screws to attach the wall standards to the wall. As of ...
Beniled's user avatar
1 vote
2 answers
1k views

Cheapest way to screw in drywall close to a big hole without patching the hole

I am replacing our thermostat. The new one has only two holes for mounting to the wall. There is a big round hole in the wall already. I can't position the new thermostat in a way that I can put a new ...
IMTheNachoMan's user avatar
2 votes
2 answers
440 views

Cannot get to the screw behind disconnect switch

I'm trying to unscrew what "seems" to be (I'm not an expert) a heat pump disconnect switch. I don't know the function of this box. It's also connected to the furnace (see pictures). Box is ...
Patrick's user avatar
  • 131
1 vote
3 answers
1k views

My 3 inch by 9 grade 316 stainless steel deck screws are breaking

These are self-tapping screws, meaning that I don't have to drill a pilot hole, but I have broken 3 of them already and I think a pilot hole would help, or maybe a stronger screw. It seems to break if ...
David Watson's user avatar
1 vote
1 answer
176 views

What type of screw/bolt has expandable wings behind the wall surface?

Do you know what type of screw and bolt this is? Do you know the best way to unscrew it? It attaches my CCTV camera to the ceiling plaster (dry wall).
Nyork3000's user avatar
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0 votes
3 answers
9k views

Woodworking tips to fix a stripped MDF screw hole WITHOUT glue

Please note: I see some other very similar questions but the recommended answers all suggest using glue in some form. I can't use glue as part of this solution! I have a workbench that, on the end ...
hotmeatballsoup's user avatar
0 votes
5 answers
3k views

How to repair holes in wall and properly mount a clothes pole?

We just moved into our house and tried hanging up my wife's winter clothes. Once we had both sides of the racks filled up the whole thing fell down. We had a handy man come out, and we figured out ...
Anthony's user avatar
0 votes
1 answer
2k views

How to fix drill hole in metal desk

I ordered this desk here but one of the sides' holes in one of the legs won't allow any of the screws to screw in. What are my options? It's definitely the screw the directions are saying to use but I ...
user1778404's user avatar
6 votes
2 answers
1k views

What type of bolt is only threaded at the tip

I am trying to fix my son's scooter and need a 2nd one of these: I've never seen this style of bolt/screw before: only the first 1/4" or so is actually threaded and the rest is just an ...
hotmeatballsoup's user avatar
0 votes
2 answers
8k views

What are some effective methods to fix a worn out screw holes of a door hinge? [duplicate]

I have a door that was slightly tilted and didnt close properly. I noticed the hinge was a tad loose, and what was holding it was a short 0.5" screw. I replaced it the screws with a new 1" ...
KingsInnerSoul's user avatar
4 votes
1 answer
3k views

How do I repair decking where my screws have broken?

We installed a deck (various 2x and 4x PT lumber with 5/4 PT decking) two summers ago. As the wood dried, it warped and shrunk, so the deck's been squeaking with every step. I just took an hour or so ...
FreeMan's user avatar
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2 votes
4 answers
6k views

What type of screw do I need for this faucet handle?

Somehow the screw holding the handle of my outdoor faucet - the type you connect a garden hose to- came loose, and my faucet handle detached from the stem of the faucet. Normally this is the type of ...
dpw's user avatar
  • 173
8 votes
3 answers
728 views

Are electrical screws a standard diameter?

I've just had to reset the thermal cutout of my immersion heater. Whilst removing the cover, I've stupidly dropped the nut somewhere behind the tank. Fishing around with a magnet has pulled up all ...
Tom Wright's user avatar
0 votes
1 answer
6k views

Why don't my composite deck screws go in all the way? Why RT screws?

I'm trying to finish up a composite deck project. We had been using SplitStop screws when we needed them, but I only need about 30 more and don't want to buy another box of them because they're very ...
user26270's user avatar
  • 243
0 votes
0 answers
7k views

What length and gauge screw to attach a 2x4 fence rail to a 4x4 post (face screwed)?

I'm constructing a picket fence and need to attach the 2x4 rails to the 4x4 posts. I've seen some conflicting information of what length and gauge. I'm leaning towards 3" #9 screws. This will ...
Andrew's user avatar
  • 318
-1 votes
1 answer
397 views

What are these brass spacers on a simple porcelain drawer pull called?

I have a few of these vintage, small, round porcelain drawer pulls; see pics below. Some have screws and “spacers” but some don’t. So I’m trying to figure out what those brass “spacers” might ...
Giacomo1968's user avatar
0 votes
3 answers
660 views

How do I measure my screws to match how stores label them?

When I buy screws, the container often has measurement labels, e.g. : 50/4 or 20/2.5 and such. I'm pretty sure the first number is a length in millimeters, and the second number is a width in ...
einpoklum's user avatar
  • 2,757
2 votes
3 answers
774 views

How to unscrew this screw

I want to take out my dish washer but there is a screw that I don't know how to unscrew. I can't get the screwdriver straight on the screw head, only at an angle. Any advise would be appreciated.
an0's user avatar
  • 123
0 votes
1 answer
1k views

Weird set screw on tub faucet

I’m trying to remove this old tub faucet. There is what looks to be a set screw, but it’s either been stripped or is super corroded. What are my options here? I can’t seem to fit an Allen key down ...
rratnaya 's user avatar
1 vote
2 answers
2k views

Butt joints with screws

I'm building a small wooden foundation for a new shed (pic below, joints in question highlighted). I'll be using wood screws to put it all together. My question is simple, should I be screwing through ...
CDspace's user avatar
  • 111
14 votes
2 answers
4k views

Screw with two grooves?

Hi there: this screw from my bathroom vanity handle has broken. I'm curious about the two grooves that you might be able to see on the remaining screw. Do they serve any purpose? Should I be trying to ...
spindoctor's user avatar

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