I recently purchased the M2-M5 Mega Bolt Set and I couldn't be happier with my purchase. The 304 stainless steel material ensures that the bolts, screws, nuts and washers won't rust or tarnish over time, providing long-lasting durability. The hex socket head cap design makes tightening and loosening a breeze and the assorted sizes easily accommodate any job. The included storage box keeps everything organized and easy to find, saving me plenty of time during projects. Overall, I highly recommend this Mega Bolt Set to any DIY-er or professional who needs a reliable and versatile set of bolts and screws.