Name: CISA Asix P8 30/40 double cylinder with knob shaft (10Q31282012)
Brand: CISA

CISA 10Q31282012 — Official series illustration, not a photo of this exact size variant; consult model specifications. — Official series illustration, not a photo of this exact size variant; consult model specifications.Image source

10Q31282012 dimension diagram: side B 39.5 mm, side A 29.5 mm, overall body length 69 mm — Our dimension diagram follows the corresponding catalogue row; it is not a product view or machining template; the projecting knob shaft is excluded from body dimension L.

Cylinder dimensions

Dimensions from model documentation
Specifications	Dimensions from model documentation
Dimension A	29.5 mm
Dimension B	39.5 mm
Overall length L	69 mm

Measure both sides from the fixing screw. Check the cylinder profile, cam and version.

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Specifications

Key system: Asix P8
Construction: Double cylinder with knob shaft
Nominal size: 30/40
Dimension A: 29.5 mm
Dimension B: 39.5 mm
Overall length L: 69 mm
Coding construction: 8 pin positions: 6 active, 2 passive
Body construction: Brass body and plug
Key type: Reversible nickel-plated brass flat key
Operating mechanism: Knob-shaft operation

Operation and dimensions of this version

The knob shaft illustrated for 10Q31282012 is on side B; Body B=39.5 mm, key side A=29.5 mm; L=69 mm excludes the projecting knob shaft. The knob is an operating component to verify separately; a shaft configuration does not mean that a complete knob is supplied.

Key system and installation checks

This series has key blade length 17 mm and thickness 2.9 mm; Personal Card is also listed. Key dimensions can help check the entry clearance of a protective escutcheon; they do not establish key interchangeability between systems.

When selecting, first record nominal size 30/40 for 10Q31282012, then verify the actual 29.5+39.5=69 mm against the drawing. Nominal size is an ordering identifier; adding its two integers does not give the actual overall length.

Limitations

Dimensions are divided at the central reference in the catalogue drawing; a and B do not automatically designate the outside and inside of the door. Installation also requires checking the lock-body cam interface, door thickness and escutcheon thickness.
Catalogue model numbers and dimensions do not establish current stock availability or certification of the complete door; Before purchase, check the actual supplied product's identification plate and the manufacturer's installation documentation.
The catalogue lists series 06353, 06355, 06356 and 06357 knobs as available on request, not as standard equipment for this row.

Sources

CISA 2026 English catalogue, PDF page 104 / printed page 100

Manufacturer documents are provided in their original language.

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