Changes

=== Cap-Head ===

=== Cap-Head ===

Cap head screws have a cylindrical head. They are most common, and useful in applications which don't require a button head geometry. They are easier to model in assemblies and have a stronger head than button-head screws.

Cap head screws have a cylindrical head. They are the go to fastener in most situations. They are easier to model in assemblies and have a stronger socket than button-head screws.

=== Button-Head ===

=== Button-Head ===

=== Square Nut ===

=== Square Nut ===

Square nuts are similar to standard nuts, but with a square exterior. These are mostly used for inserting in 3D printed pieces, as they are stronger and easier to install compared to standard nuts.

Square nuts are similar to standard nuts, but with a square exterior. These are mostly used for inserting in 3D printed pieces, as they create a stronger attachment and easier to install compared to standard nuts.

=== Nylock Nut ===

=== Nylock Nut ===

=== Heat-Set Inserts ===

=== Heat-Set Inserts ===

Heat set inserts are used to create stronger threads in plastic components. They are installed by heating the insert (with a soldering iron), and pressing it into a piece of plastic.  

Heat set inserts are used to create stronger threads in plastic components. They are installed by heating the insert (with a soldering iron), and pressing it into a hole in the plastic.  

=== Self-threading screws ===

=== Self-threading screws ===