Threads, Fasteners and Holes
Click on the links below to learn more about each subject
Patreon Content
How to Determine Through Hole SiZE and TOLERANCES for Fasteners
How to Dimension Hole Features on a 2D Technical Drawing
Design For Manufacture
Thread Rolling vs Thread Cutting
What are J Threads
Thread Tapping vs Thread Milling
Design Guides
Metric Thru Hole Sizes
Imperial Thru Hole Sizes
Tapping Drill Sizes
Undercuts and Thread Relief
Counterbore Holes For Hex Head Bolts
Coming Soon…
NAS1102 CSK Screws
A deep dive into the specifications, applications, and advantages of aerospace-grade countersunk fasteners.
Counterbore Holes For Hex Socket Screws
6P Hex Head Bolt Sizes
Reference guide for 6P hex head bolts in metric and imperial standards, including thread size and head dimensions