I was mainly replacing some severely rusted sheet metal screws on my HVAC outside (condenser) units. This 410 SS alloy should be much more corrosion resistant, while maintaining good screw strength. (I have twisted the heads off more than a few 316 marine SS screws, mounting things to my saltwater sailboat). I think the main application is for sheet metal to sheet metal, since the cutting part of the self tapping screws is a bit large if you want it to hold in softer materials like wood for example. the cutter part is 30/1000ths of an inch less than the thread diameter. Plenty to hold in sheet metal, but will not hold as much as typical deck or drywall screws would in softer wood and drywall material, which is why they have deeper threads. But a good choice for sheet metal applications. The box is also well organized and labelled. Cheers!

This is a very handy set of screws to have on hand, even if you have no specific purpose for them when ordering them. First off, there's 370 individual screws so you're not going to run out very quickly. Secondly, these are self tapping screws that can be used in wood, sheet metal, as well as other various materials. I really like the fact that these have the hex heads instead of the screwdriver heads because I often have issues dealing with the heads that take screwdriver bits. I rarely have issues with these heads as long as you use a good fitting socket. This set just has a lot of utility due to it having a variety of screw sizes. I also feel they are a fair price. I can recommend this set to anyone that is handy at all.

This is a very nice set. The fit and finish of the actual screws is really nice. Very well polished, but yet good edges. Nothing cheap here. It is a good assortment with plenty of screws. 410 stainless is magnetic because of the alloy so this is to be expected. Things to note, 410 is less corrosion resistant than 304 stainless, but its stronger. The main reason to use 410 in my mind is stronger strength than 304. That said 410 is less corrosion resistant than 304 and 304 is not marine grade for salt water applications. Therefore 410 is probably not good on a salt water boat or possibly a car that lives in the salt belt. If I were using these in a salt environment, I would just keep an eye on them over time. Overall a nice set and they are delivering what they say.

Ordered these to have around the house for various DIY projects. There are 370 pieces - enough to last me a lifetime! I love the container, which is rugged enough to toss in a toolbox while at the same time keeping everything organized. The screws are on par with others I have purchased from big box hardware stores, with a sharp point, uniform threads, and head height appropriate for the diameter. I tested a #8 x 3/4" screw to see how it would perform. I successfully drove the screw into a steel shelving unit frame. The screw stayed on center without wobbling. I took it slow with moderate pressure and the screw performed flawlessly. Highly recommend!

They are all hex head but knew that when I ordered. Can of course cut a slot for screwdriver if application requires it. Cant have too many bolts and screws around if you are handyman type person. Well organized in their plastic box. Helpful tip, might want to keep couple driver bits in the box with the screws.

Satantech Self Drilling Screws Assortment Kit has a very good selection of 410 ss screws. 410 stainless steel is corrosion resistant and magnetic. If you are using magnetic drivers they will be held in place. The manufacturing process was very good as the all the necessary attributes of a good fastener are there. Typical plastic case helps keep them organized.

These are all good. My only complaint is the poor packaging. Both hinges were broken and most of the dividers were out of place, allowing the various sizes to mingle. Not that big of a deal, because they all still work, I'm sure.

These are well machined self tapping screws. They have a nice self tapping end. The threads and heads are all nicely shaped. The container is also pretty nice to keep them separated. However, mine was broken on delivery. I can't blame the manufacturer for that. All in all they are good.

I have some heavy duty wire shelves that needed to be mounted on a beam, and since I planned to put heavy items on them, needed them to be mounted well. The #10 1.5" screws are perfect for this, and since they're large, having a hex head and using a hex bit helps drive them without camming out. The case is sturdy, undamaged, and it's a good selection of larger sizes of screws. Very pleased with this assortment.

This is a very useful assortment of hex-head washer-style metal screws in SAE sizes. I will use them for replacing screws on our three outdoor AC heatpump housings (which always seem to be missing screws), as well as many repair or construction jobs that come up. Hex head metal screws are one of the most practical types to have around (in my opinion) because they are the easiest to drive with an cordless drill and hex bits, and the builtin washer gives more contact holding power than other screw types. There is no slippage when driving a hex head screw. I often use these on wood by pre-drilling the core out beforehand. This process is very fast and easy by using separate cordless tools for drill and hex bits . The price for this set is $23 but that is much less than buying the separate sizes in packs from a hardware store, especially since these are stainless steel.