Water pump screws

[zoidberg]

Those tiny ones which hold the face plate on my Beta water pump are very easy to drop and lose forever into the bilge. Being stainless, they're not easy to recover.
Not many chandlers carry stock of that size, and not many yotties IMHO carry spares.

Now would be a good time to acquire some and stow them away with the spare impeller(s)....

My little w/p screws are M4 and 7mm on the thread. Here's where I get them - and quite a few other items:

Avon Stainless Fasteners

 

[billyfish]

I got mine with wing / butterfly tops . No screwdriver involved.

 

[ChromeDome]

Some like to change one, more or all to these

fitted with a drop of thread-lock and then flanged nuts.

Makes for a much easier fit of the lid

 

[Supertramp]

Where did you get them?

I got mine with wing / butterfly tops . No screwdriver involved.

 

[Tranona]

Loads of them here. This is the general type Speedseal used.
google.com/search?q=M4+thumbscrews+stainless&rlz=1C1VDKB_en-GBGB1067GB1067&oq=M4+thumbscrews+stainless&gs_lcrp=EgZjaHJvbWUyBggAEEUYOTIJCAEQIRgKGKAB0gEJMTI0ODdqMGo3qAIAsAIA&sourceid=chrome&ie=UTF-8

 

[Poignard]

 

[billyfish]

Yep, ebay

 

[Bodach na mara]

This thread reminds me that last spring I was tightening these screws and one stripped. Are they stainless or made of a softer metal or have I actually stripped the thread in the hole?

 

[rogerthebodger]

If you turn the outer end of the stud down to the core dia of the thread you can locate the windnut onto the end of the thread and turn the wingnut and its less likely to fall off into the bilge

 

[oldgit]

Used these on my water pumps with VP AQD40/41 without problems.
Need to check correct thread and finger tight did the job.
Similar to these brass and chrome plated knobs.
CB Mobile Radio knobs speaker pair KN 5mm SIDE THUMB SCREWS For Motorola | eBay
RADIO THUMB SCREWS FOR MOBILES CB POWER MOBILES SPEAKER AVAILABLE IN 4 MM BRASS | eBay

 

[wonkywinch]

I wouldn't buy fasteners on Ebay or Amazon, too much cheap Chinese junk. I use Namrick for proper stuff - Online Catalogue

 

[Laysula]

I wouldn't buy fasteners on Ebay or Amazon, too much cheap Chinese junk. I use Namrick for proper stuff - Online Catalogue

And how do you know that they haven't bought all their stuff in from China?

 

[wonkywinch]

And how do you know that they haven't bought all their stuff in from China?

They may well have done. Not all stuff that is made in China is bad, take Apple products for example. They just need to ensure QC along the supply chain and I would like to think a reputable business like Namrick have a lot to lose if they start selling poor quality product.

On Ebay & Amazon, there is virtually no recourse, except they may offer a refund but they just price that into the cost of doing business.

 

[penberth3]

I wouldn't buy fasteners on Ebay or Amazon, too much cheap Chinese junk. I use Namrick for proper stuff - Online Catalogue

Re: Ebay - It isn't difficult to tell which sellers are genuine engineers' merchants and which are the chancers shifting a warehouse full of junk.

 

[PetiteFleur]

I've used stainless Steel knurled thumb screws, bought on ebay. No tools needed, just finger tight.