1) Overview

	Concrete B15 resp. C12/15
	Natural stone with dense structure.
	Solid brick.
	Solid sand-lime brick

	Steel constructions
	Railings
	Consoles
	Machines
	Staircases
	High racks
	Wooden Constructions
	Reinforcement Bards

2) Description

	Undercut anchor for pre-positioned (FZA bolt version and internally-threaded anchor FZA-I) and push-through installation (FZA-D bolt version).
	A cylindrical conical hole with an undercut is produced with the Drill bit FZUB in one work process.
	When setting the anchor, the anchor sleeve is driven over the cone with a hammer (or setting tool) and fills the undercut hole with a positive fit.
	Also available: special version FZA ST A4 for man hole step irons according to DIN V 1211 GS / 1212 GS.
	A4 stainless steel version for outdoor use and in damp conditions, highly corrosion-resistant steel C (material no. 1.4529) for applications in aggressive atmospheres.

3) Advantages

	Positive fit in the undercut gives additional safety.
	Virtually expansion-free operation allows cost-efficient fixing with very small edge distances and axial spacings.
	Single-step drilling process simultaneously produces the undercut, saving installation time.
	Green ring becomes visable when correctly set.

4) Technical Data