A structured pre-design checklist for engineers who need to get the specification right the first time. Custom screws can solve problems that off-the-shelf fasteners cannot, but only if the design specification is grounded in the right engineering decisions from the start. Specifying a custom fastener without working through the fundamentals
A technical comparison for specifying the right thread and why getting it wrong can be costly or even dangerous Thread direction is one of those design details that rarely surfaces until something goes wrong. Examples of what can go wrong include a fastener loosening under vibration; a gas fitting getting
Selecting the coating of a fastener is one of the first and most important decisions that an engineer must make. When making this decision, engineers must consider a myriad of important decisions. These decisions include: environmental conditions, corrosion resistance, temperature resistance, electrical conductivity, durability, and of course, cost of the
At CFI, we engineer custom screws nuts and bolts every day. One of the methods we use is called Cold Heading or Cold Forming. To answer the basic question, there is no difference between cold forming and cold heading, so the terms are truly interchangeable. The real difference is between
We’ve all seen it in our personal lives – whether a bolt coming loose on a car, or a piece of furniture or cabinet that has a loose bolt despite you tightening it multiple times. How can you combat this inconvenience? Well, there are actually a large amount of options
