FASTON terminal

Six series are covered in one of TE's catalogs (which omits the 0.375 in/9.5 mm, but mentions it elsewhere), named after their blade width in mils.

[3] Insulated versions of the terminals are color-coded to indicate what wire gauges they may be used with.

The terminal system consists of tabs (male) and receptacles (female).

There are free-hanging wire and circuit board mounted versions of both tabs and receptacles.

A hand tool exists for inserting the terminals: the AMP Universal Handle.

The image shows three Faston style female terminals with a matchstick as size comparison. The terminals have three different coloured insulations.
Faston female terminals in three sizes, with insulation
The image shows three Faston style male terminals in three different sizes. They all have insulation in different colours.
Faston male terminals in three sizes, with insulation
Various single wire connectors: FASTON blade terminals (bottom), ring terminals (2 left), spade terminals (5 top), bullet terminals, male and female (2 right with blue wires)