Questions tagged [bolts]

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2answers
28 views

Sourcing a spacer / rectangular washer to prevent rotation of a carriage bolt in a round hole?

While installing a Curt trailer hitch, I lost one of the provided carriage bolts and what they call a spacer inside a frame tube. After lots of time spent trying to retrieve the bolt, I've decided to ...
2
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3answers
74 views

How much weight can a 3/4“ x 8” lag bolt hold when drilled in half way?

Question: How much weight can a 3/4" x 8" lag bolt hold when drilled in half way? What about other lengths and thickness, and percent drilled in? Is there some sort of formula to calculate? Optional ...
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1answer
34 views

Stuck/Spinning Bolt Screw

Some time ago I had a handyman install a pull-up bar with some "M10 x 75" bolt screws that came included with the pull-up bar. When I try to take the bolt screw off to remove the pull-up bar, the ...
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3answers
71 views

Can I use toggle bolts to install faux wood beams to the drywall in the ceiling?

Unfortunately the ceiling ceiling joists run in the wrong direction. I was wondering if I can use toggle bolts to support ~50 pounds of faux wood beams on ceiling dry wall. It would be about 4 toggle ...
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2answers
122 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
131 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
60 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 ...
-1
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2answers
179 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
122 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'...
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?
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2answers
56 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 ...
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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
140 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 ...
3
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2answers
388 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
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4answers
1k 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 ...
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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 ...
1
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1answer
147 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 ...
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2answers
62 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 ...
10
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2answers
748 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 ...
1
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2answers
226 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
297 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 ...
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2answers
822 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 ...
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2answers
401 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. ...
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2answers
132 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
70 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.
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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 ...
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 ...
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3answers
229 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 ...
3
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1answer
92 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,...
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2answers
1k 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 ...
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3answers
941 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 ...
4
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3answers
609 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 ...
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1answer
355 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 ...
0
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1answer
114 views

Where to find this kind of bolt?

We have a system of shelves that we brought with us when we moved to a new apartment now. However, some of the bolts broke and now we're having a hard time buying new ones. These are not from Ikea. ...
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2answers
1k views

Building a No-Weld Trailer Chassis

I need a chassis for a box trailer. For now I'm focusing on the chassis itself, as once that's built I can use it to haul the rest of the things needed for the box. I'm no steel-worker though, and ...
0
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1answer
142 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
296 views

What's the spanner called for these “four side notch” collars/bolts?

Notice this thing, for a 30mm ... What is the tool to tighten that properly? It would seem to be best if it was a long tube-like thing you slid down from the top and tightened, but, maybe there's a ...
1
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1answer
2k views

Where do you put multiple washers when you have a bolt and a threaded hole?

I bought a bed second hand, and it came without instructions, the bed posts have threaded holes, for bolt to go into, and the bolts have a locking washer, and a bigger bigger, flat one. I wish to know ...
2
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2answers
76 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 ...
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3answers
1k 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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1answer
727 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 ...
1
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2answers
32 views

Folding garden chair assembly…putting a stud in the wood

I bough an wooden garden chair table set from a company called vidaXL. There is one step where a half threaded metal stud needs to be screwed in the wood. The other half of the stud is smooth and ...
1
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1answer
290 views

What are the iron bars and threaded rods sticking up out of my backyard?

What are these bolts and metal rods sticking out the ground?
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2answers
2k views

How can I tighten nut under kitchen sink

My kitchen tap has come loose from the sink and I'm having trouble tightening it back up. This is what it looks like. I need to tighten the nut, but the problem I'm having is there is not enough ...
0
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3answers
188 views

Trying to replace the adjuster screw on a screen door — low-profile threaded screw insert and bolt (identification needed)

On my sliding patio screen door there is an height adjuster held in place by flat-profile screw inserts. I'd like to obtain more of these threaded bolts and inserts, but I have a nomenclature issue ...
2
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3answers
856 views

How to fasten rotating pieces without self-tightening (or loosening)? [closed]

I'm trying to make a "slider crank" mechanism for cheap out of 1/4" x 1.5" aluminum, where all the movement is in the xy-plane (parallel to the ground). Total linear movement is ~6 inches. Not my ...
0
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1answer
1k views

How do you pry apart pieces stuck together by cam screws?

I have already removed the cam lock (the round piece that locks it in place). What I am left with is two pieces of wood that are attached by the cam screw. Simple hand pulling has not pulled them ...
0
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2answers
85 views

A very hard to find piece of hardware [closed]

Our new-to-us house has cable-guided retractable solar screens. The cable tension is maintained by a bracket mounted piece of hardware that looks kinda like this: Not even the hard to find hardware ...
2
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3answers
192 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 ...