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GEFU® thread-rolling screw With Taptite 2000® thread, countersunk head and hexalobular drive

GEFU DIN 7500-1 steel zinc ptd. counters. head TX
SCR-CS-DIN7500-TX20-(A2K)-M4,0X25
TAPTITE2000

Art.-no. 020972425
EAN 4050382587442

Price for selected packaging unit
GEFU® thread-rolling screw With Taptite 2000® thread, countersunk head and hexalobular drive

Art.-no. 020972425

Price for selected packaging unit
Quantity
PU
x 200 pcs

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DIN 7500-1 case-hardened (-O-) zinc-plated steel, blue passivated (A2K) with anti-friction coating

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



Benefits:



Cost savings


  • Eliminates thread cutting


Non-cutting thread formation



Low rolling torques with greater thread flank overlap


  • TRILOBULAR shape of the core diameter combined with the radius profile of the thread flanks


High clamping force


  • Due to low rolling torques


High load-bearing capacity


  • Due to large thread flank overlap

  • Due to strain-hardened counter thread (nut thread)


Protection against loss (reduced likelihood of screw working loose)


  • Play-free and self-locking thread seating


The formed thread corresponds to a standard metric thread


  • Where necessary, the GEFU screw can be replaced with a metric screw.
Notice

The suitability of the GEFU for the application or component in question must be determined through preliminary testing. Guideline values for suitable hole diameters are specified in DIN 7500-2.

Product information

Datasheets(X)

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Application area

Examples of materials suitable for this type of non-cutting direct screwing are ductile materials such as steel (up to approx. 500 N/mm²), die-cast zinc, aluminium, copper, copper alloys etc.

Thread type x nominal diameter (d1)

M4

Length (l1)

25 mm

Head diameter (dk)

8.4 mm

Head height (k1)

2.7 mm

Standards

DIN 7500-1

Material

Steel, case-hardened

Surface

Zinc plated

Internal drive

TX20

Thread type

Metric thread

Guideline values for hole diameters

3.7 mm

Head type

Countersunk head

RoHS-compliant

Yes

Art.-no.
Cust. Mat. No.

Hazardous Material

Product information

Datasheets()

Datasheets ()

CAD data  | 

Certificates/ Documents

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Technical information