Review on 520pcs Metric Hex Socket Pan Head Screws & Nuts Assortment Kit, 304 Stainless Steel M3 M4 M5 Bolt Nuts Flat Washers Machine Screws by Desmin Dickerson

Now I use a lot of M3 screws. I used to use #6-32 mounting screws, but it's nearly impossible to find them in anything other than a Philips flat head or flat head without spending a fortune at one of the fastening specialists, so I switched to metric a while back . You can get M3 screws in every imaginable head and drive type. These are socket head screws with a hex wrench. The right key is there. They are made of stainless steel. Highly magnetic so I don't think they are listed as 304 but they do look and feel like some sort of SS. Good range of lengths from 4mm (1/8") to 30mm (1-3/ 16"). . More than half of the kit consists of nuts and washers. Another good price for 510 bolts. Each size is packed in a separate plastic bag in a case. This is great as it prevents them from being encrypted during delivery.