Pan head tapping screw, shape C with Z recessed head DIN 7981, A2 stainless steel, plain, PZ drive, shape C
DIN 7981 A2 stainless steel, Z pan head, shape C
VIS TOL TCB INOX A2 PZD 7981 5,5X6O
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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)
 | |
Material | Stainless steel A2 |
Surface | Untreated |
Form | C |
Nominal diameter (d1) | 5.5 mm |
Length (l1) | 60 mm |
Head diameter (dk) | 10.8 mm |
Head height (k1) | 3.95 mm |
Internal drive | Z3 |
DIN | 7981 |
Head type | Pan head |
Standards | DIN 7981 |
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