McMaster-Carr interview questions

Was contacted by e-mail from their HR dept, they said they found my resume online and wanted to schedule an initial 30 min phone interview. The phone interview was a basic get to know you and some questions about the resume. Two days later got another phone call asking me to come in for 1:1 interviews. As I had read the reviews on this site I felt fairly prepared. I arrived and was asked to fill out an application and this is where I made a major mistake; as with most applications it asks if you can legally work in the US etc. however, most applications ask if you are OVER 18 years old, McMaster Carr's application asks if you are UNDER 18. I didn't realize it until meeting with the first interviewer and she asked me if I was sure I was under 18. I feel this is a big key for them as they are all about attention to detail and this is one of the ways they check. I had four 1:1 interviews and all told I was there for about four hours. The interviews were all behavioral and fairly basic questions, the interviewers were all pleasant and professional. At the end I was told I would be hearing from them one way or another within a week. Two weeks later I received the "thanks but no thanks" letter in the mail. Advice? Tough call...obviously research them, they will ask what you know about them. I feel the number one thing they are looking for is whether or not you fit into "the McMaster Carr culture". If possible, find someone who is currently working there and pick their brain on their interview experience.

I was invited to a recruiting dinner with other students from my school and learned a lot more about the firm from the two representatives that were there. About a week later I was contacted to come in for an in-person interview. The day consisted of a tour of the distribution center (office and warehouse) and then 3 one-on-one interviews afterwards. I spoke with a few people who had worked with the firm and had a good idea of how to approach the "Super Day." On the tour I asked lots of questions and remembered the process of how an order comes into the call center and eventually goes to a customer from the warehouse. In the one-on-one interviews, I felt like a I handled the behavioral and case questions well. Two of my interviews turned into conversations, and I left the center feeling confident about getting an offer. Unfortunately, I did not, but I also couldn't really see myself being happy with the work and my co-workers. The benefits, salary, and graduate school opportunities are very attractive though, and I am sure the work would have been challenging, just not interesting.