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Thread-rolling screw

DIN 7500-1 steel zinc plated hexagon head shape DE
SCR-DIN7500-DE-FLG-WS7-(A2K)-M4X8

Art.-no. 401914 8
EAN 4047376473515

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Thread-rolling screw

Art.-no. 401914 8

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Quantity
PU
x 1000 pcs

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DIN 7500-1, hexagon head with collar, case-hardened (-O-) galvanised steel, blue passivated (A2K)

Thread-rolling screws form a nut thread in cast blind holes, rim holes and drilled, lasered and punched sheet metal parts. Unlike thread cutting, thread rolling does not interrupt the material structure in the counter thread. Instead, the material is displaced and strain-hardened.



Eliminates thread cutting


Cost savings



Chip-free thread formation



TRILOBULAR shape of the screw combined with the radius profile of the thread flanks


  • Low rolling torques with large thread flank overlap

High clamping force



Large thread flank overlap


High load capacity



Strain-hardened counter thread (nut thread)


Greater load capacity



Play-free and self-locking thread seating


  • Reduced likelihood of screw working loose

  • Protection against loss


The formed thread corresponds to a standard metric thread

Notice

The values for the hole diameters are guideline values, which should be verified by testing the original parts. Further information can be found in the DIN 7500-2 standard.

Product information

Datasheets(X)

Certificates/ Documents

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Thread type x nominal diameter (d1)

M4

Length (l1)

8 mm

Head diameter (dk)

7 mm

Collar diameter (d2)

8.4 mm

Head height (k1)

2.92 mm

External drive (s1)

WS7

Guideline values for hole diameters

3.70 mm

Standards

DIN 7500

Material

Steel

Surface

Zinc plated

RoHS-compliant

Yes

Head type

Hexagon head

Drive type

Hexagon

Thread type

Metric thread

Collar/flange

Yes

Art.-no.
Cust. Mat. No.

Hazardous Material

Product information

Datasheets()

Datasheets ()

CAD data  | 

Certificates/ Documents

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Technical information