5/16-18 Serrated Flange Hex Lock Nuts, Stainless Steel 18-8 (304), Bright Finish, 25 PCS

Exactly as described great product at a great price

These worked great for what I needed. Perfect rust free replacement for glow plug nuts on Duramax engines. GM & others stopped including new nuts with the glow plugs. They charge $1ea for them! But they're also tiny and non magnetic. That means you're in trouble if you drop one and lose it! Also works on Ford Powerstroke glow plugs.

Great Quality. Great Value.

Quality hardware at a very good price, Ace gets $2.39 each for these

Came exactly as expected right on time

when you drop one and can't find it this the way to go and your reg hardware store don;t hand them or big box store

When fixing up an old car, I don't really like to use a lot of hardware store fasteners because they just don't look right. Most cars use flanged fasteners like this and that is why I bought them. They manage to do the job well and look stock, without having the tendency to tarnish and rust that you see in stock zinc plated hardware. So yes, I would buy them again and have bought several different types of hardware from this seller to use on my cars because I really like the way they look. It seems like a small detail, but those small details are the difference between looking right and not quite right.

Ordered these SS nuts to use on an RV tank replacement project I was doing. They fit well and quality seems to be very good. Can't beat the price as this is what I would've paid for 4-6 at the big box stores.

I mean 8 mm nuts ... works fine

Good quality; works very well; clean threads.

nicely finished product.... was used to assemble a metal work bench

These were NOT serrated as described and illustrated.

solid, work as expected.