Countersunk tapping screw, shape C with slot DIN 7972, A2 stainless steel
DIN 7972 stainless steel A2 ctrsnk head shape C
SCR-CS-DIN7972-C-A2-3,9X13
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Tapping screws belong to the thread-moulding screw family. When screwed into a pre-prepared core hole, these screws shape their own counter-thread.
Guideline values for selecting the correct core hole diameter are contained in DIN 7975.
- Shape C = thread with tip
- Shape F = thread without tip
- Shape R = thread with rounded tip
Stainless steel tapping screws are weaker than case-hardening steel tapping screws. This means that these screws cannot form a counter thread in sheet steel. For this reason, they are used in soft materials such as aluminium only.
Datasheets(X)
CAD data (available after login)
 | |
Material | Stainless steel A2 |
Surface | Plain |
RoHS-compliant | Yes |
Form | C |
Nominal diameter (d1) | 3.9 mm |
Length (l1) | 13 mm |
Head diameter (dk) | 7.5 mm |
Head height (k1) | 2.3 mm |
Internal drive | Slot |
Drive type | Slot |
Head type | Countersunk head 80 degree |
Thread type | Self-tapping screw thread |
Thread design | Full thread |
Declaration of performance (EU-CPR) | No |
Shape of tip | C |
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