Hakkin 600Pcs Nuts and Bolts M3 M4 M5 Fully Threaded Button Head Hex Socket Screws 10.9 Grade Alloy Steel Pan Head Black Hex Socket Screws Bolts and Nuts Kit Assorted Nuts and Bolts Kit with 3 Wrench

I'm not sure entirely these are stainless steel, but they do perform a decent job at what I've been using them (mostly on stuff printed from my 3D Printer)They do arrive very wet from oil, so that might be something to consider when purchasing.

Nice selection of fasteners -- note these are pan head sockets, so a bit wider than a standard socket head but with a lower profile.

Works fine

The product seems ok, however the M3 screws total 120 but they only supply 100 nuts. The others on the box are supplied with the correct amount of screws and nuts.One of there other smaller sets supplies 60 M3 screws and 80 nuts so the manufactures are getting it wrong somewhereDamn shame as it appeared to be a good buy

You get a really good selection of bolts with matching nuts and washers. The black colour also looks great.The case they come in is not very sturdy and a lot of the bolts, washers and nuts have been mixed up in the different slots.Some of the bits also have an oily residue on them and there was also some tiny flakes of black metal in the case.The actual selection and quality of the bolts is really good. The poor quality case and finish really lets this set down which is a shame.

Very pleased with order. Unlike other people who reviewed this product I read the description which states SILVER is stainless steel BLACK is 12.9 alloy steel. I knew I was ordering BLACK which is what I wanted because 12.9 alloy steel is stronger than stainless steel. If people want stainless steel they should make sure that they are ordering SILVER .

This kit is really good value for money I find it difficult to buy small quantities at a reasonable cost. However these are not Stainless steel. they are mild steel with a black finish. Other than that I have no complaints.

All the size was correct except was missing the M4*8 and got 2 lots of M4*12 instead