Countersunk screw with hexalobular head

Name: Countersunk screw with hexalobular head
Brand: Würth
SKU: 403325012

ISO 14581 stainless steel, A4, plain
SCR-CS-ISO14581-A4/070-TX8-M2,5X12

Art.-no. 403325012

EAN 4055375153307

All versions

Specification

ISO 14581 plain A4-070 stainless steel

Increase in assembly productivity

When elements are joined using hexalobular (TX) fasteners, the force is transmitted over a large surface area across the flanks of the drive rather than being centred on one point, as is the case with hexagon socket drives, for example. This has a number of advantages:

Reduced tool wear

Tool does not slip because force is distributed optimally

No damage to surface coating

No wobbling

Screw locates securely

Hexalobular drives must comply with DIN EN ISO 10664

As a result, connection elements with hexalobular heads are standardised and can be used all over the world

Notice

Head dimensions in ISO 14581 countersunk screws are gauged in accordance with ISO 7721

Some screws with short dimensions are threaded up to the head, see ISO 14581

Countersinks for screw heads in accordance with ISO 14581 must comply with ISO 15065

Technical information


Thread type x nominal diameter (d₁)	M2.5
Length (l₁)	12 mm
Head diameter (d_k )	4.7 mm
Head height (k₁)	1.5 mm
Standards	ISO 14581
Material	Stainless steel A4
Property class	070
Surface	Plain
RoHS-compliant	Yes
Head type	Countersunk head
Drive type	Internal hexalobular
Internal drive	TX8
Thread type	Metric thread
Pitch	0.45 mm
Thread form	Standard metric thread
Product class	A