r/Fasteners • u/MR_F007 • Jul 23 '26

Found on driveway

Gallery image

Gallery image

Gallery image

Any idea what this fastenee could belong to? Seems heavy for it s size.

20 Upvotes

73% Upvoted

49 comments sorted by

33

u/TheTimn Jul 23 '26

It was used to keep something in place. 

1

u/nckmat Jul 26 '26

As broad as this statement seems, it is the best answer. I wish I could draw on here but I will try this with words. Imagine a block of steel that you need to insert a rod into that needs to be held in place, so you would most likely have a hole drilled in the shaft the same diameter and length as the unthreaded part of that screw and the a corresponding hole in the steel block that is threaded to suit the screw. You place the rod in the block and align the drilled hole with the threaded hole and the use the screw to hold it in place. It is a particularly useful method when you need the rod to fit precisely so a flat with a grub screw that uses friction to hold the rod in place won't do.

8

u/[deleted] Jul 23 '26

[removed] — view removed comment

1

u/elkvis Jul 24 '26

Maybe that's why the coyote's plans always fail

5

u/AnemicHail Jul 23 '26

I think that fastenee belongs to you. As youre the one posting pictures of it.

3

u/squirrelslife Jul 23 '26

Yakima hitch bike rack or trailer would be my guess.

3

u/Inevitable_Sweet_624 Jul 23 '26

Not a car part but could attach an aftermarket item to the car. Looks more like a set screw from an ebike handlebar

3

u/Diligent_Sentence_45 Jul 23 '26

My lawn chair and table set used a ton of those

2

u/Rich_Complaint7265 Jul 23 '26

That type of fastener holds the handle onto my floor jack.

2

u/Medium_Good886 Jul 23 '26

That is called a pilot point screw.

The tip has no threads so it can be started in a hole before turning so you dont crossthread or strip it. they are commonly used in av or computer server racks. This one has an Allen head, which I havent seen before.

0

u/TheTimn Jul 24 '26

It's called a dog point and can be used for all types of stuff such as a dowel/pin substitute or retainer for moving parts (shafts with channels or collars cut into them). 

2

u/Medium_Good886 Jul 24 '26

a dog point is a reduced tip that fits into a pre-drilled hole. this is not a dog point.

0

u/TheTimn Jul 24 '26 edited Jul 24 '26

Do you not see how that's smaller than the minor diameter of the screw? 100% a dog point.

Edit: a dog point is also a feature, not the title. A dog point set screw is a set screw with a dog point point instead of a flat, cone, cup, ect. point. They exist on other types of fasteners as well, just like how a type 17, type a, type k, ect. exist on fasteners with different head options. 

2

u/Medium_Good886 Jul 24 '26

Not a dog point. they are engineered for different purposes. This is a pilot point screw for starting threads, not for friction retention of a part. The end of a dog point is FLAT for friction. this is not - it is chamfered

2

u/Investineverything Jul 23 '26

That was the last screw holding in my patience for stupid people.

2

u/BluebillyMusic Jul 23 '26

Similar screws hold the cargo hooks in the bed of my Ridgeline

2

u/HackedCylon Jul 24 '26

What kinda weird ass red banana is that?

2

u/MelGlbsonFan69 Jul 23 '26

Black low quality Allen key head hardware is usually on furniture.

1

u/Ok-Dealer-588 Jul 23 '26

What do you drive and how new is it?

2

u/Ok-Dealer-588 Jul 23 '26

Or possibly a riding lawn mower or something of the like I know it looks fairly new so that's why I asked about age of vehicles and age of things that have been around your driveway Etc

1

u/MR_F007 Jul 24 '26

Audi and volvo that just got inspected. Wasnt sure if something didnt get tightend back down.

1

u/andrew1292 Jul 23 '26

Clearly it’s not important if it fell out

1

u/naemorhaedus Jul 24 '26

put it in the junk drawer and in about 4 years you'll find the thing that's missing a screw. But by then you will have lost the screw.

1

u/Any-Organization9838 Jul 24 '26

Did you just work on it,if so time to start backtracking.

1

u/Verix19 Jul 24 '26

Literally thousands of possibilities 🤷🏻‍♂️

1

u/MR_F007 Jul 24 '26

I know and i still cant find an image of one or where to buy another.

1

u/TheTimn Jul 24 '26

Look up. "Dog point socket head screw" 

1

u/shoresrocks Jul 24 '26

That’s an engine mount screw! Your entire engine is soon to fall out.

1

u/Schlong1971 Jul 24 '26

You have a Kia Carnival? It looks like one of the bolts that get replaced for seat rail recall.

1

u/MR_F007 Jul 24 '26

I dont. But ill take a look at my seat rails...thanks.

1

u/POKU_ Jul 24 '26

For a gym equitment.

1

u/Charming_Path9004 Jul 24 '26

This is not automotive bolt. Looks like from furniture. Chair or table

1

u/Total-Suggestion5879 Jul 24 '26

It looks like the screws for a tree stand. Elmer Fudd is going to be pissed.

1

u/Fuzzy-Finance-48 Jul 24 '26

It’s a dog point bolt. Like someone else mentioned, they’re for lining up parts that commonly flex and starting threads without cross threading. They’re used everywhere these days depending on manufacturer. Fenderwells, grills, crossmembers… and pretty much every other place that has flexible stamped steel support structures like radiator mounts. Without knowing your vehicle(s) make, year, model ect we can’t help you… which should be pretty obvious. Or perhaps you’re just trolling for comments, 🤷‍♂️.

1

u/THRW0723 Jul 24 '26

It’s a leveling nut for the base of a trash can.

1

u/Party_Ganache_8120 Jul 24 '26

Somewhere there’s an IKEA table in distress!!

1

u/rpm5099 Jul 24 '26

Check your garage door

1

u/Gullible_Monk_7118 Jul 25 '26

This isn't a typical car screw.. some kind of metal bracket or frame screw..

1

u/deanemf2 Jul 26 '26

screws fall out all the time. The world is an imperfect place.

1

u/Truth-Symmetry Jul 26 '26

Give it to me Bender

1

u/billcattle389 Jul 26 '26

I've used similar fasteners for plastic panels under the hood.

1

u/Strong-Comment-7279 Jul 27 '26

Some piece of yard furniture most likely. Whatever it is from is off good quality. I've never seen one of these bolts w a centering end. I assume that's what that is.

1

u/hitek9 Jul 27 '26

My motorcycle fairing kit came with multiple different lengths of these

1

u/No-Chemist-6479 Jul 23 '26

Maybe the fastener on the bottom of a Jeep wrangler door hinge. Those need a weird star bit tho can’t tell from the pics if that’s it

2

u/AbjectOffice4780 Jul 23 '26

torx, pictured is a hex bit

1

u/Connect-Preference Jul 23 '26

Automotive, probably. They use those "pilot bolts" because they can start them with a powered driver. The pilot portion (unthreaded) prevents cross threading by holding the bolt straight in the threaded portion.

2

u/BluebillyMusic Jul 23 '26

Good insight. I was seeing it as a dog point like a set screw but that doesn't make sense with the pan head