Insulated terminals are either:

• Standoff - where the solder terminal protrudes from one side of the board and is insulated from the board 
• Feed through - where the solder terminal passes through the insulator and the board and is insulated from the board.

Insulated terminal are available with a variety of insulator materials and mountinh methods:

• Ceramic - Used where high electrical stresses are encountered or radition is present.
• Diallyl phthalate - Offers best performance in high temperature enviroments, has low moisture absorption and protects from acids and alkalis.
• Teflon - Offers best overall characteristics in electrical stability, enviornmental endurance and mechanical strength.

To view datasheets on Thread mount, pin type insulated solder terminal

http://www.cambion.co.uk/Main/pin_screw.htm

To view datasheets on Thread mount, turret type insulated solder terminal

http://www.cambion.co.uk/Main/turret_screw.htm

To view datasheets on Thread mount, forked type insulated solder terminal

http://www.cambion.co.uk/Main/fork_screw.htm

To view datasheets on Swage mount, pin type insulated solder terminal

http://www.cambion.co.uk/Main/pin_swage.htm

To view datasheets on Swage mount, turret type insulated solder terminal

http://www.cambion.co.uk/Main/turret_swage.htm

To view datasheets on Swage mount, forked type insulated solder terminal           

http://www.cambion.co.uk/Main/fork_swage.htm