Questions tagged [bolts]

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votes
1answer
643 views

Need help installing the pull up bar i just bought

i am a rookie that hasnt done much installing/drilling etc. in my life (just turned 18 ;P). So i bought this pull up bar online, assembled it, but now i have to install it to my wall. At first i ...
0
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1answer
91 views

How to mount header bracket for garage door opener to concrete wall?

The anchor of the header bracket securing the garage door opener's rail to the concrete wall above the garage door came loose over time and with vibrations (details in a previous question). What is ...
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3answers
119 views

What kind of bolt is this? (securing the garage door opener rail to the wall face)

It was used to secure the wall mounting bracket of the garage door opener's tee rail to the concrete wall of the house above the center of the garage door opening. The bolt was inside an expanding ...
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3answers
59 views

Does unthreaded portion of bolts fit through hole?

I'm getting replacement for some M5 x 30mm hex bolts. The original ones are fully threaded, i.e. the whole shank length. The ones I can find have an unthreaded portion (i.e. grip) but their overall ...
2
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3answers
180 views

How to identify a nut

I have to replace a nut on an old sliding door that dates back at least 50 years. The nut fits a 7/16 spanner, but that's all I know about it. Unfortunately I can't take the nut off and take it to my ...
-1
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2answers
177 views

What are these parts included with mounting bolts?

I have a thing to mount on the wall. These things were coming with it. To figure out how to apply them properly I has to know how these things and their parts are called. There 10mm inscription on the ...
1
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1answer
119 views

Hold a nut while unscrewing?

Im trying to take apart a metal desk, but Im stuck on one part. Theres one spot where the screw is visible, but the nut isn't accessible, so when I turn it, it just turns both. Ive tried moving other ...
6
votes
4answers
1k views

How to attach an appliance bracket to a stainless steel table?

I need to attach this base plate to a stainless steel table in a commercial kitchen. It'd be attached to the top surface off to the side. It's for a commercial size can-opener. How do I go about ...
1
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1answer
4k views

Are there transit bolts on this dryer?

We just moved into our new place and our new dryer is making strange rattling noises that sounds as if a small screw or other metal part is stuck somewhere in the machine. We checked all the ...
1
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1answer
82 views

When to recess a lag bolt in lumber, vs. using a lag screw?

I'm trying to figure out when you should recess a lag bolt in lumber, vs. just using a lag screw? Does it depend on the type of wood being screwed into? Hardwood? Softwood? Plywood? I know you can'...
0
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1answer
3k views

Loose thread in standing lamp between base and rod

My wife just bought a lamp at Target, the kind you have to self assemble the rod from 4 hollow pipes and a base, where the electrical wire is already threaded through all of them. Each of the 4 ...
16
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4answers
5k views

What is this attaching my toilet seat and how can I unscrew it?

I’m trying to unscrew my toilet seat but it seems to have been fitted with this plastic mechanism, which doesn't seem to want to be unscrewed. Do I need a special tool to remove it?
0
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1answer
132 views

I tightened a Titus Minifix Cam too hard and now I have to take it apart. Is that OK?

I put together this TV stand, and used a cam/bolt dowel for the first time when I got to the step of attaching the top of the TV stand (A) to the two stand panels (E). Since I assumed the cam had to ...
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2answers
70 views

Double expansion concrete anchor

I have a few 3/8" double expansion concrete anchors and noticed that on one side it is threaded and on the other it is not. Which side goes into the hole?
10
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4answers
2k views

What's this bolt head type and how can I open it?

There is a bolt screwed inside a long hole: I don't know the bolt head type. Is there a trick to open it?
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2answers
52 views

Verify existing torque on tightened bolt using a torque wrench

I have a couple of already counterclockwisely tightened bolts and would like to know how much they're torqued to in the first place. I know they're torque to at least 25Nm but how much more I don't ...
1
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2answers
116 views

How can I remove this concrete wall anchor?

The anchor pictured was holding a hose reel, which has been removed. When I twist the part sticking out it just spins infinitely in either direction. I think it is something like a toggle or a molly ...
17
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8answers
58k views

When bolting down a porcelain toilet, how tight is “too tight”?

Tightening bolts on the base of a toilet is the one thing about toilet installation that has me the most nervous. They say not to over-tighten, but how tight is too tight before the porcelain is ...
0
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0answers
90 views

Removal of a Large Bolt

I looked at an earlier set of answers that seem to apply to this situation, but they are not quite the same and the question is different. I have a large pin that is threaded on one end. It is 1" dia ...
3
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2answers
188 views

How do I get this lag bolt out?

As you can see, the (3/8") lag bolt broke off about 1.5cm beneath the surface. I have a 18V cordless drill and a corded high speed dremel at my disposal. My initial idea was to use some sort of EZ-...
3
votes
4answers
846 views

Re-using lag bolt holes?

Can holes in wood studs that previously held lag bolts be re-used with lag bolts of the same diameter or will this not hold safely? More detail: I have a piece of fitness equipment mounted to wood ...
1
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2answers
3k views

How strong is a lag bolt through the narrow face of a 2x4 stud (meaning it only has 1.5" to grab)?

I'm trying to mount a TV, but the only studs are on the outside walls of this niche in my fireplace. Meaning I could build a little wooden box and lag into the narrow face of the studs (the 1.5" ...
6
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6answers
3k views

What is the name of this Allen-head furniture fastener?

I have a couple of boards that are parts of a table I am assembling, and I wish to know the name of the metal piece of hardware circled in red, below. I would have thought it was called a bolt, but I ...
10
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2answers
725 views

Identify this screw head (was: Security Torx)

Am attempting to open an old device cover (an adapter) and it has these screws (please see attached image, sorry for the bad quality, I couldn't get better focus than this.) Would really appreciate ...
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2answers
61 views

Screwed bolt past thread. Now it is stuck. How to remove it?

The thick metal plate has a thread for two bolts. By mistake I screwed one of the bolts in all the way. Now the bolt won't come out from the metal plate - bolt spins freely both directions. I tried to ...
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3answers
898 views

What is the name of a “headless” bolt

Wasn't sure whether to post this on ELU or here, but thought I would have better luck here. Anyway Merriam Webster defines a Stud Bolt as a bolt with threads on both ends designed to be screwed ...
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5answers
15k views

How do I tighten/loosen this recessed nut and bolt?

My bed has a nut and bolt that are recessed into a piece of wood. The only tool I have that fits it is the tiny toy spanner that came with the bed. The spanner does not grip the nut tightly enough ...
3
votes
5answers
21k views

What is the meaning of the letters on the top of a common hex bolt?

I recently drilled and tapped a 5/16"-18 in a piece of soft steel, then found that the 5/16"-18 bolt I had chosen wouldn't fit (the bolt was slightly too large). When I found that other 5/16"-18 ...
1
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2answers
147 views

How much weight can threads hold?

I'm building a pot rack that will hang from my ceiling and I want to make sure it is secure. I rigged up a hanging apparatus that consists of a 1/2" x 12" bolt, two lock nuts, a 3/8" pipe floor ...
1
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1answer
181 views

Unsure how to hang awning on garage, nor what bolts to use

I bought a light awning set to put on the side of my garage, and it came with the following anchor bolts: My garage has a wooden panel attached to wooden studs inside the wall and I am trying to ...
1
vote
2answers
513 views

Can I use lag screws, lag bolts to hang swing vertically from a wood beam?

I need to hang a swing (picture attached) from a large wood beam in my living room. The beam is 1 foot high and 1/2 foot wide. (quite strong). I am planning to use 2 metal faceplates . Each ...
0
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2answers
300 views

Do toggle bolts have to be perpendicular to the floor?

Recently I installed floating shelves on my drywall using toggle bolts. I noticed some websites mention that toggle bolts need to open up in a way that is perpendicular to the floor. When I installed ...
1
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1answer
34 views

How to hang off of wide circular hole in concrete?

I have a concrete wall with many 2-inch diameter, 1.5 inch deep, perfectly cylindrical holes on it. I’d like to hang some relatively lightweight (up to 10 lbs) decorative stuff off of these holes. ...
0
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2answers
125 views

What is the equivalent degrees of one “turn”

Often in install or specification manuals you will see something like: Tighten X turns past finger tight Example This has always bothered me as it seems ambiguous. I've always taken this to mean ...
2
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1answer
60 views

How to remove carriage bolts from a basketball backboard?

How can I remove these carriage (or perhaps round head) bolts? (How were they ever tightened to begin with?) There seems to be no way to access behind the backboard.
4
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2answers
2k views

What is type of screw is this?

This cylinder-like screw is screwed into an opening on the inside of a table. It basically "locks" into the screw that is facing down from the top. Kind of like this: I'm trying to get them out, yet ...
6
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16answers
57k views

What can I use as a thread “tightener” compound for a free-running bolt?

(I'm familiar with thread "locking" compounds, purple, blue, and red, but that's not what I'm looking for here. They lock once and then upon breaking the joint, do nothing further.) I'm looking for ...
21
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10answers
7k views

Turning a hard to access nut?

Working on the propane conversion of my gas stove. One of the orifices to be changed is in a very hard to access location - shown in the photo. The orifice is the "nut" I'm referring to, which you can ...
0
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3answers
182 views

Attach railing to aluminum post

I am putting in a handrail down the few steps into our garage. The floor is concrete, so I've ordered a couple of 3x3 aluminum posts. The railing has a single attachment point per post, and the ...
5
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3answers
4k views

What ikea screwdriver type is this?

I am trying to disassemble by bedframe and the Screwdriver that I have seems too loose. Where can I find a screwdriver to do this?
82
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8answers
472k views

Should a washer go on nut side, or the bolt side?

Often I take something apart and when I go to reassemble it, I don't remember which side the washer was on. When there's only one washer, does it generally go on the nut side (pressed up against the ...
3
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1answer
91 views

Help with strange type of bolt

I'm hoping someone can help me identify what type of bolt(if it is even a bolt) this is, what it is used for and most importantly how to remove it. This is used to attached a boat engine to a transom,...
2
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2answers
73 views

loosening bolt on the steel support strut that's secured to the ceiling of the garage

I was working on my garage door the other day and I noticed that the steel supporting strut (or more appropriate name for this? See the picture) tilted due to a loosening bolt, the ceiling cracked ...
0
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2answers
961 views

Would a M6 bolt fit in a 6mm hole?

I'm trying to look for some Allen screws for a friend to help him out, but am unable to figure out the correct size of the screws and nuts he lost (see image, marked in red).. I'm not really familiar ...
1
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2answers
20k views

How to tighten a carriage bolt?

I'm trying to assemble a glider patio chair which I ordered. The main pieces (seat, back, sides, etc) are assembled and I'm supposed to just screw the pieces together. How are you supposed to tighten ...
0
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3answers
798 views

Rectangular steel tube bolted connection

Is there any way to make bolted connections (T-shape, L-Shape etc) for rectangular or square steel tubes to avoid welding but also achieve modularity of the structure? Threaded tube inserts can help ...
64
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11answers
95k views

If metal expands when heated, how does heating a bolt loosen it?

If you're having trouble removing a stuck bolt, common advice is to heat the bolt up. But if metal expands when heated, wouldn't heating up the bolt just make it harder to remove? How does heating ...
4
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3answers
502 views

Correct orientation for t-shaped shelf bracket to minimize stress on anchor bolts

I have a t-shaped shelf bracket that looks like this: | <- screw hole here | <shelf> |----------- <wall>| | | | <- screw hole here This is a ...
1
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7answers
10k views

What kind of blow torch to use for a stuck bolt

I'm trying to remove a tire from a lawn tractor and the bolt is stuck. I've tried all kinds of penetrating oils and an impact driver with no luck. A lot of websites recommend heating the bolt. What ...
0
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1answer
306 views

Alternative to using a bearing on threaded rod? [closed]

I have a project where I use a threaded rod to allow a piece to move up and down the rod when rotated (much like a deodorant stick) now I need to fix the threaded rod to it's container in such a way ...