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-TX25-(A2K)-M5,0X25
TAPTITE2000
Register now and access more than 125,000 products
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.
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.
Datasheets(X)
CAD data (available after login)
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) | M5 |
Length (l1) | 25 mm |
Head diameter (dk) | 9.3 mm |
Head height (k1) | 2.7 mm |
Standards | DIN 7500-1 |
Material | Steel, case-hardened |
Surface | Zinc plated |
Internal drive | TX25 |
Thread type | Metric thread |
Guideline values for hole diameters | 4.6 mm |
Head type | Countersunk head |
RoHS-compliant | Yes |
Last viewed
1/2 inch socket wrench insert For external TX screws, long
Bodywork file blade
3D hinge ∅ 20 mm
Countersunk head screw with recessed head, H DIN 965, A2 stainless steel, plain
Surface rust remover
Serrated lock washer, internally serrated, shape J DIN 6798 zinc-plated steel, blue passivated (A2K). Internally serrated.
pias® drilling screw, round head with H recessed head
Spacer washer
Cheese head screw with hexagon socket head and shoulder ISO 7379, steel 12.9, plain, tolerance f9
Centre punch In accordance with DIN 7250 with hardened impact head