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Questions tagged [screws]

Questions relating to threaded fasteners and their use.

1
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1answer
420 views

Garden hose spins but does not unscrew

I am trying to detach a garden hose that is presently hooked to a dehumidifier. It spins freely but will not unscrew itself. Any idea what to do? Here is a picture:
6
votes
3answers
2k views

remove sheared screw from electrical outlet box?

A previous owner of my house (I swear it was not me :) ) appears to have broken off a screw in the hole (red circle) that allows the bottom of the outlet to attach to the box, leaving only the top ...
1
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1answer
474 views

Is galvanized steel totally incompatible with cedar, even when only touching on the surface?

I'm building a cedar picket fence attached to 2 3/8" chain link fence style galvanized steel posts using galvanized post brackets like these. I know that there are a lot of material incompatibility ...
3
votes
3answers
1k views

How can I put a knob on a threaded rod?

I need to create a "thumb screw" or "hand wheel" out of a 1/2-20 UNF threaded rod to serve as fine linear adjustment screw for a heavy load. (I can't find ready-made knobs with this thread, nor thumb ...
2
votes
1answer
2k views

How can I fasten a threshold to concrete?

BACKGROUND A threshold was purchased from HomeDepot: The item comes with screws and needs to be fixed into concrete slab. I would like to understand how to properly screw the threshold into the ...
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2answers
2k views

Why do screws have lower shear strength than nails?

I read up on when to use nails and when to use screws. Part of what I learned is that screws have lower shear strength as can be seen in this video. It can be seen by just applying common sense, how ...
1
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4answers
5k views

Does shear strength increase with the number of fasteners?

Let's say I have screws with 1,000 lbs shear strength. If I add more screws, does the total shear strength of the joint increase? If I use 3 screws, then put a 2,000 lbs shear load on the joint, ...
2
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0answers
74 views

Setting screws in concrete while it is still soft -how do I use epoxy in this case? Can I ? Should I?

I am thinking about using Sonotubes and the adjustable post support shown below. The idea is to rest the square with the screws on the sonotube to make sure the screws will be set with their heads ...
1
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1answer
160 views

Question about drywall screws

I am building a workbench where I'm using 2x4s for the frame. I need to join 2x4 in a T configuration. The instructions say to use 3'' drywall screws. I went to Home Depot, and got the Grip Rite #9 x ...
1
vote
2answers
443 views

What the heck are these L-shaped screws and how do I use them to hang my vanity mirror

I ordered a 50-pound mirror from Greece that is supposed to be wall-mounted. It came with no instructions and these things. There are holes on the top left and top right corners of the mirror that ...
3
votes
1answer
1k views

What tool works with this star-shaped screw with a post in the middle?

What tool do I need to unscrew the fasteners shown on the metal lock on this sliding window?
0
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1answer
601 views

Screws stuck inside of Anchors, with shelving unit in between.

I drilled the anchors into the wall and used the screws they came with. The screws wouldn't drill all the way in to lay flat against the shelf, so I tried removing the screws from the anchors and the ...
3
votes
2answers
516 views

how close together can screws be before weakening a joint

I am looking at a full lap joint between two pieces of softwood, held together by two screws. I may need to screw something else to it as well, which got me wondering whether there is a limit to the ...
0
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3answers
411 views

Disassemble ikea sofa - screws issue

Does anyone know how to eject these types of screws from ikea sofas? I can loosen the screw, but not the hook.
12
votes
5answers
4k views

Choosing the right machine screw for a threaded hole in a computer monitor mount

The SENSE M2488C computer monitor pictured here has 4 machine screw holes at standard spacing around the label on the back of the monitor. I plan to mount it from a ceiling mount, not on my desk. I ...
1
vote
1answer
3k views

What length of screws to use over 3/4" plywood

What length of screw should be used when screwing 3/4" plywood subfloor to the decking underneath, in preparation for a new sheet vinyl floor?
0
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2answers
1k views

How to stabilize a crack in wood?

I am working on my first wood product. I am completely new to this. The following happened: My question is: How do I stabilize this crack? Can I fill something into the hole so that the crack doesn'...
1
vote
1answer
519 views

What can I use to back a door jamb strike plate with no framing behind?

So I'm trying to replace the original entrance handleset door lock from my almost 100 year old house and after removing the old lock and patching up the holes. I looked inside the door jamb and ...
0
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1answer
159 views

Screws used for deck - how to replace?

I bought a house with large raised deck, and the home inspector told me that I need to replace all of the screws with no shear screws, and that since they used screws originally, I cannot use nails ...
0
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1answer
55 views

Hanging Drywall Around a Door

Easy question. I'm hanging drywall around a doorway. Do I put screws in both the jack and king studs or only one? For studs in the field, it's straight forward. But, for the doorway, where the jack ...
3
votes
2answers
398 views

What is the Philips screw naming convention (Mn)? What is 2 in M2?

I want to order screws like the one I have. The diameter of the threaded portion is 2mm. The length of the threaded portion is 8mm. The screws are listed as Mn (where n is 1.6,2,2.5...) on various ...
1
vote
1answer
545 views

how to find out screw diameter?

You know how on the drill bits it can says : 5/32 for example? What's the right drill bit for this screw: https://www.homedepot.ca/en/home/p.8x1-12-flat-socket-brass-wood-screw.1000140305.html? ...
1
vote
1answer
800 views

how to fasten shelf bracket?

How do I fasten a shelf bracket correctly? I think I'll need to drive the two upper screws in at an angle? This is a typical bracket with three screw holes: one at the bottom and two on the top. The ...
0
votes
1answer
602 views

How to get broken screw out of wall anchor

I am putting up a single shelf on a wall with some antique redwood interior paneling, so my goal is to keep the walls as in best condition as possible with minimal additional drilling done (if any). ...
1
vote
2answers
793 views

Are nails okay for flooring the attic?

Our attic has foam insulation and is fully encapsulated. As part of this project, we removed all of the old cellulose insulation above the ceiling, so now there's nothing between the attic joists ...
0
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1answer
199 views

What type of screw is this?

I have to replace several light units that are secured with this type of screw. I assume this is a type of tamper resistant screw. Can anyone tell me what it is called?
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1answer
61 views

How to unscrew from narrow gap?

On my computer case, I found a screw in this position. How can i unscrew it.
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2answers
789 views

Roof screws need replacing

My roof screws need replacing because of rust, do I do it myself or get someone and pay them ? And how much will it cost ? It's a 4 bedroom obviously tin roof.
0
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1answer
117 views

what do i use to attach an ikea table top to storage facilities. links attached

I want to attach these - Ikea Algot to this - Bekant table top what would be the best way?
0
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1answer
101 views

Are there screwdrivers that can hold an M1 slotted screw during insertion without being magnetic? [closed]

I need to be able to insert an M1x2 slotted screw into a tapped hole upside down, and critically without dropping the screw. That rules out magnetic headed screwdrivers unless I can't find anything ...
0
votes
2answers
876 views

How can I remove this screw from a ps4 system? [closed]

The interior pattern of the screw is whethered away as you can see. This is on a ps4 system. I tried using different sized screws but to no use. Any ideas?
0
votes
2answers
801 views

How to repair an GFCI outlet with a loose ground (green) screw?

I have a contractor come in to do some tile work and he had taken out some GFCI outlets. I think he must have used a power drill to loosen the screws and one of the green, ground screw fell off. It ...
6
votes
2answers
166 views

How can I remove sheet metal screws from the wrong side of a wooden board with minimal damage?

I just took over my first apartment, and have to replace the kitchen fan. In order to fit my new kitchen in the cupboard above the stove, I have to remove 6 sheet metal screws pointing out from the ...
2
votes
1answer
1k views

How to re-attach toilet paper holder post back onto wall

wondering if any of you have suggestions on how to screw back into the wall one of the posts holding a roller for toilet paper which has recently come off. The piece of metal you see on the wall ...
1
vote
0answers
324 views

How to repair cupboard hing that tore off particle board [duplicate]

The top hinges of the cupboard have been torn out of the particle board taking a big chunk with it and leaving quite a deep crater with just a couple of dents for where the holes used to be as ...
3
votes
1answer
107 views

How can I temporarily secure a wooden countertop to its base with limited cabinet access?

The title is a bit of a doozy, sorry. I'm repurposing an old counter I bought off Kijiji to turn it into a kitchen island / kegerator. The old cuonter top was some terrible, cheap, laminate-esque ...
0
votes
1answer
75 views

Pocket hole screws instead of screws

I've read much discussion stemming from people asking if screws can be used in place of pocket screws. However, I have the converse question: if a DIY plan calls for 2" screws, can I use 2" pocket ...
0
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1answer
59 views

How do I turn a seized SS screw in a brass fixture?

I need to repair the seals of the automated water valve on my Aquastar, on-demand water heater. However, two very difficult to reach stainless steel screws have seized up and I cannot turn them ...
2
votes
1answer
880 views

How does one replace an adjustable back box lug?

Whilst redecorating, we knocked the faceplate of a light switch and realised it was only being held in place by one screw and years of accumulated caulk / paint / etc. Upon further investigation, we ...
0
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1answer
221 views

Alternative to large edge standoffs [closed]

Are there small alternatives to the large edge standoffs used to mount glass and signs such as the one in the picture below that you can grab at a local hardware or crafts store? Looking for ...
3
votes
1answer
165 views

what the best option to deal with a rusting screw in drywall?

I have some rusting screw in my garage drywall: What's the best option to deal with it? Do I drive it back into, spackle it with Drywall Joint Compound and touch it up with paint? Remove it ...
0
votes
0answers
58 views

How to avoid over tighten or stripping screws with an impact driver? [duplicate]

I got an impact driver last month, but I'm still afraid to use it for some stuff because I think I might over tighten the screw to the point of damaging one or both the parts or even strip the thread ...
0
votes
1answer
327 views

How to repair peeling corner bead?

I have this corner bead peeling. How do I fix it in place? Do I drill a hole and anchor it with a screw? This is inside the garage by the way.
1
vote
1answer
60 views

How can I remove this fastener?

This is from a serving tray in bamboo, whose legs won't stay tucked in when I transport it. I thought I might try to do something with these screws, but... how do I unscrew them?
8
votes
4answers
3k views

How do I use threaded inserts?

I got these fasteners with table legs that I bought for a formica table top. I get that I need to embed the outer part with the big thread into the table, and then use an Allen key to fasten the bolts ...
2
votes
2answers
4k views

How do i unscrew this screw to take apart the bed frame

I have a broken bed that I need to take apart to haul it to junk. How do i unscrew the screw in the picture? THere are several screws like that in the bed frame.
6
votes
3answers
35k views

What type of screw is the most resistant to rust: galvanized, stainless steel, or deck screws?

How do the following screw types fare in an outdoor (wet) long-term application? Galvanized screw: Stainless steel screw: "Deck" screw:
9
votes
2answers
921 views

How can I fasten a low-voltage plate to drywall?

I do not have much experience with home improvement related things. I moved into my first apartment and I saw that the internet coaxial cable was pushed inside the outlet. I loosened the screws and ...
1
vote
5answers
114 views

Is there a method to transpose specific pilot holes?

Bathroom drywall with wood beam behind it. In a very specific location, created 2 pilot holes (through the drywall into the beam). Want to attach a wood plank, exactly into those 2 pilot holes. ...
3
votes
2answers
588 views

How do I move the strike plate on my bedroom door down by 1 cm?

My bedroom door in my apartment won't stay shut. It seems the strike plate is about 1 cm too high. I will need to lower it. If I lower it, I will need to drill 2 new holes. I think if I do so, the ...