Questions tagged [screws]

Questions relating to threaded fasteners and their use.

26 questions with no upvoted or accepted answers
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70 views

Do hinge screws become more tight-fitting over time once installed?

I've noted newly installed hinge screws can be replaced more easily if replacement is within days after fitting. If left for weeks or more, they become considerably harder to remove due to friction. ...
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89 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 ...
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1answer
89 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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29 views

Is there a torque table for hex cap screws?

I find that especially with smaller hex cap screws the hex drive is worn out or deformed long before I reach the maximum torque that the screw could theoretically handle. For example: I've used M5 ISO ...
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59 views

What is this part called?

I'm not sure this is the right place to be asking this but I'll give it a try. I have this bit of hardware from a pair of helping hands that I'd like to find more of. I'd describe it as a rod fastener ...
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2answers
878 views

How to deal with Square Drive vs. Robertson Screws?

Although the terms "square drive" and "Robertson" are often treated as the same in catalogs, the difference (as I understand it) is that Robertson tools and screws have a slight taper to the square ...
1
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1answer
608 views

Hanging faux wood blinds- screw broken. Is there a tough screw I can use for a wall stud?

Job= I was trying to hang up some new faux wood 2" slat blinds. It's a double sized window, so I bought 2 blinds. I needed to install 4 brackets, with 2 in the center. I predrilled the holes as the ...
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54 views

Reusing Old Gold Course Screws on a New Project

Learning from guys who had no power tools but were craftsman in the day my learning experience was not to re use nails or screws for many reasons. Got into a huge argument with a College Grad who ...
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41 views

How to find a right screw for a hole

I want to hang some stuff on my wall so here it comes to the part where I need to get screws/anchors. Saying I have a hole in a piece that I would like to attach(a picture attached), how can I ...
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1answer
65 views

Are phosphate floor screws suitable for subfloor which will be covered in thinset and cement board?

I am installing hardiebacker concrete board with thinset to a plywood subfloor. I am putting down the new subfloor and want to be sure the screws that I use to secure the plywood to the joists will ...
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1answer
87 views

7 inches long 4-40 screw

I have been looking all over to find 7 inch long 4- 40 screws. I found McMaster carries threaded 4-40 rods that are 8 inches long but these are not screws. I know they do exist as I found one just ...
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1answer
82 views

size of screw, wall plug and drill bit for shelf upright with 7mm hole

I have a shelf upright that has 7mm sunken holes, like this one here: https://www.twinslotshelving.co.uk/shelving-uprights/1m-white-upright I'm just unsure about the size of the things I need for ...
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38 views

Rusted tapcons on an aluminum screen patio cage

What replacement screw is best to replace rusted tapcons on an aluminum screen patio cage?
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37 views

How many sizes larger do I need to go to fix a cross threaded screw?

Generally, how much bigger should a new screw be so that it doesn't interfere with the crossed threads that have already been made but sits as if it had been tapped freshly? People generally seem to ...
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470 views

Deck screw vs construction screw strength

I had sort of a follow up question that wasn't addressed here: Difference wood and deck screws Generally, does an exterior grade deck screw have the same strength as a construction screw?
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18 views

Can I use a threaded insert on my screened porch so that i can assemble, take down, and reassemble plastic sheeting year after year?

I have made some heavy plastic panels to install over my screened porch during winter. Can I use inserts to attach and un attach these panels year after year?
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1answer
45 views

Using chipboard screws and plugs in a dot & dab wall

I have a dot & dab wall and am installing a radiator onto it. I had a rummage around and found a "chipboard screws and plug" set. Using the included wall plugs, would these be suitable for ...
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1answer
670 views

Light Fixture Screws & Bracket Too Small for Fixture Box

I have a light fixture that came with a mounting bracket and some screws. When I went to screw the bracket into the ceiling fixture box, it looks like the box's holes are too big. Not only do the ...
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1answer
565 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 ...
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80 views

Does this exist - 'screwdriver gun' with cartridge to automatically load new screws?

I'm looking to do some really repetitive assembly that involves screw-driving a ton of M2 screws over and over again into threaded holes to put two plastic pieces together. Because it's a high ...
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96 views

How much force can a concrete block fence and wood stud hold when installing a large shade sail?

I have a standard concrete block fence. I want to install a large 20 x 26 foot shade sail, or two 20 x 13 shade sails by screwing hooks into the wall, and the other end into my house via the studs. ...
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1answer
63 views

Can 3/8" Titen Heavy Duty Screw Anchor or hole be reused?

So we drilled into concrete to bolt down steel bases with several Titen 3/8" x 3" Titen heavy duty Screw Anchor. I'll be replacing the base, so I will need to remove the screw, remove the base, and ...
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2answers
83 views

Uneven poles for fence with wood railing?

What can I do if the steel poles used for a fence are uneven? They're all supposed to be the same height, but for some reason, they're uneven (ie. surface is uneven, the welder din't measure correctly,...
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103 views

Looking for drill bit tapered to match pencil sharpener

I saw this once years ago, but can't find it now. It's a drill bit that drills a conical hole whose taper matches the cone left by a pencil sharpener. The idea is that you can repair stripped screw ...
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407 views

what type of sheet metal screws are harder than stainless steel?

I am trying to repair my dishwasher that has a stainless interior. I need to use stainless sheet metal screws so they wont corrode. I've got holes drilled and the screws go into the thin stainless ...
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1answer
80 views

How to unscrew from narrow gap?

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