Motor Vehicle Maintenance & Repair Stack Exchange
Motor Vehicle Maintenance & Repair Stack Exchange

Questions tagged [fastener]

A piece of hardware whose only function is to physically hold something else on by applying a sustained force. Includes nuts, bolts, screws, clips and rivets.

A piece of hardware whose only function is to physically hold something else on by applying a sustained force. Includes nuts, bolts, screws, clips and rivets.

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Stainless Steel Fasteners

In the past 6-months or so, I purchased this set of stainless steel hex head bolt fasteners. In the kit, they require you to install the bolts using "anti-seize as a regular practice". The seller specifically states it is an "absolute requirement…
Pᴀᴜʟsᴛᴇʀ2
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Torx vs. Star Fasteners

I was looking for some Torx head fasteners and found some that claim to have "star" heads. They look like Torx heads… Are they the same? Has it really been long enough for the Torx patents to run out? Perhaps that is why there is Torx Plus now.
dlu
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What size hole should be drilled for an individual tap?

The other day while doing further work on my son's Subaru, I drilled a hole in a piece of angle iron then started using my 1/4-20 tap to cut some threads in the hole. The idea was to have a threaded hole which I can screw a bolt into to secure the…
Pᴀᴜʟsᴛᴇʀ2
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"Always Replace" (torque-to-yield) Bolts

I'm working on a VW Jetta and have pulled one of the suspension ball joints to replace a drive shaft. The three bolts holding the ball joint to the lower control arm are marked in the Bentley service manual as "always replace." In the videos and…
dlu
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Wax Coating For Bolts To Prevent Rust

After having replaced components such as tie rod ends etc the bolts and nut areas already have signs of rust starting on them, rusting further down the line. At times when these need to be undone to work/get to other components it is always a bit of…
Dave1UK
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What fasteners should not be loosened using an impact wrench, and why?

Which bolts and other fasteners should not be loosened using an impact wrench? For example, I've heard that it's not generally recommended to loosen spark plugs with an impact. Nor is it recommended to loosen head bolts using an impact. What's the…
Ives
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Air trapped inside threaded "blind" hole vs. hole integrity

I have seen this a few times: when screwing and tightening bolts in threaded "blind" holes (those not passing to the other side of the part) sometimes the air trapped inside gets compressed and the part walls, if thin enough or made of soft…
Aram Alvarez
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Spring vs worm gear clamps?

I understand spring clamps are convenient to use on smaller hoses. However, my Tacoma came with them on even larger hoses, such as the radiator hoses, that are, I believe 1.25" and I can't seem to find a reason why there would use an easily mangled,…
amphibient
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In a clip, what does the "Stem Length" mean?

I am currently trying to find replacement fender clips for my car. The OEM part numbers are 01553-09321 (Nissan), 90044-68320 (Toyota), and MR328954 (Mitsubishi). I have the hole size (7.7mm), and overall length (22mm), which were measured with a…
Nick
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Circlip removal when pliers are too large

I am used to larger sized circlips that have fully formed eye circles. Currently I am wrestling with a circlip that is smaller and does not have full eyes. It only has some protruded arms, and that is all. The circlip pliers that I have, are spaced…
Bram
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Securing exhaust manifold studs?

Usually the issue is them getting rusted into place and breaking on removal. Well, I have the opposite problem. Properly installed and torqued studs with nuts are loosening themselves... The nut is staying in the position it was tightened to, but…
Brian Knoblauch
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Removing rusted partially broken engine fasteners

This is the flange plate on one of my catalytic converters AKA exhaust manifolds where it joins the exhaust pipe. Before they broke off, the studs looked something like this, the driver head was reverse torx: The location of the flange is on the…
amphibient
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Washers under head bolts: Should I use them under stud nuts?

In the parts manual for the engine I'm rebuilding (Skoda Estelle/120, RWD, rear mounted engine) I see they list washers for all the head bolts. I have changed the way to secure the head against the block by means of studs instead, so the block…
Aram Alvarez
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Securing rods for threading: how to avoid vice bites?

I'm working some steel rods into small studs, the problem is that when I tighten them in my vice, they get severely bitten by the vice's jaw blocks, leaving some nasty marks in the rods. I can live with the marks, but some rods have very small flat…
Aram Alvarez
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Head studs' threads larger length: problematic issue?

As I'm getting ready to (finally!) re-assemble this old engine (Skoda Estelle/120 '70s, RWD, rear mounted engine), I needed/wanted to change a few studs, but basically all of the head studs are damaged somehow. So I went deeper and got made all…
Aram Alvarez
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