Name: ISEO 668G - 89 37 mm centre distance 5 mm projection security-door lock (0066805370G80)
Brand: ISEO

ISEO 0066805370G80 Adjacent bolt centre distance 37 mm Original measurement datum explanation — Original centre-distance diagram: two points represent adjacent bolt axes, measured centre to centre. It does not show bolt quantity, direction or outline; it is not to scale or an installation drawing. Check projection separately against the original catalogue.

Lock and fitting dimensions

Dimensions from model documentation
Specifications	Dimensions from model documentation
Bolt centre distance	37 mm
Backset	89 mm

Check the backset, centre distance, faceplate and mounting points against the specific model drawing.

Browse related directory

Specifications

Series / construction group: 668G - 89
Locking construction: Deadbolt and latch
Nominal catalogue projection: 5 mm
Bolt centre distance: 37 mm
Drive: Gear drive
Locking points: 3
Backset: 89 mm
Operating component layout: Keyhole in the middle, handle at the top, latch at the bottom
Finish: Zinc plated
Main deadbolt throw: 30 mm
Fasteners: Cage nuts

Construction and application

ISEO 668G - 89 0066805370G80 is a security-door lock case with deadbolt and latch, Bolt centre distance 37 mm, Nominal catalogue projection 5 mm. Drive: Gear drive; Backset: 89 mm; Operating component layout: Keyhole in the middle, handle at the top, latch at the bottom.

Door and hole compatibility

First check the distance between adjacent bolt axes 37 mm, then check the catalogue projection 5 mm and the receiving positions in the frame. The specified backset is 89 mm; the keyhole position must also match. Keyhole in the middle, handle at the top, latch at the bottom; even with the same centre distance, another layout may require different door cutouts.

Selection and ordering comparison

This model has a deadbolt and latch. Check latch handing, handle drive and bolt arrangement; matching centre distances do not imply identical door cutouts or fasteners. Other order configurations listed in this group: 0066805370G84; check each configuration's key accessories and packaging when requesting a quotation.

Limitations

Bolt centre distance, catalogue projection, throw and backset are different dimensions and must not be used interchangeably.
Optional catalogue functions are not treated as standard equipment. This page does not guarantee a security rating for the complete door or compatibility on site.
Confirm keys, cylinder, mounting accessories and packaging with the manufacturer for the complete order configuration.

Sources

ISEO Catalogue 04 .42, PDF page 43 (4-43)

Manufacturer documents are provided in their original language.

Define Your Requirements Before Choosing a Lock Which Documents Do You Need for a Lock?