Countersunk screw with hexalobular head ISO 14581, plain 8.8 steel - SCR-CS-ISO14581-08.8-TX20-M4X16

Countersunk screw with hexalobular head ISO 14581, plain 8.8 steel

Name: Countersunk screw with hexalobular head ISO 14581, plain 8.8 steel
Brand: Würth
SKU: 402384 16

SCR-CS-ISO14581-08.8-TX20-M4X16

Art.-no. 402384 16

EAN 4060053208439

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Countersunk screw with hexalobular head ISO 14581, plain 8.8 steel

Art.-no. 402384 16

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Quantity

x 500 pcs

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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

Product information

Würth Catalogue

Datasheets(X)

Certificates/ Documents

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Thread type x nominal diameter (d₁)	M4
Length (l₁)	16 mm
Head diameter (d_k )	8.4 mm
Head height (k₁)	2.7 mm
Standards	ISO 14581
Material	Steel
Property class	08.8
Surface	Plain
RoHS-compliant	Yes
Corrosion protection period (3)	0 h
Head type	Countersunk head
Drive type	Internal hexalobular
Internal drive	TX20
Thread type	Metric thread
Pitch	0.7 mm
Thread form	Standard metric thread
Thread design	Full thread
Product class	A
Tightening torque 90% yield strength (1)	3.2 Nm
Min./max. resulting pre-load force (2)	1.8-3.5 kN
Disc with hardness to be used	≥ 200 HV
Nut to be used with strength class	≥ I8I

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