Which detail is essential to check on a flange before turning it over to QC?

Checking the evenly distributed bolt threads on a flange is crucial because it directly impacts the integrity and performance of the connection when the flange is installed. If the bolt threads are not evenly distributed, it can lead to uneven clamping forces when the flange is tightened. This can result in an inadequate seal, leading to leaks, potential failure of the joint under pressure, and even catastrophic failure in high-stress applications.

When inspecting a flange, it is important to ensure that the threads are properly aligned and that they engage uniformly to maintain the correct torque specifications. This detail is crucial for the quality control process, as any discrepancies can undermine the functionality of the entire assembly.