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Wurth Pan Head Tapping Screw Shape C W/ H Recessed Head A4 – M4 Dia 4.2mm

Wurth Pan Head Tapping Screw Shape C W/ H Recessed Head A4 – M4 Dia 4.2mm

Name: Wurth Pan Head Tapping Screw Shape C W/ H Recessed Head A4 - M4 Dia 4.2mm
SKU: 28070
Availability: InStock

Article No. 1254216

DIN 7981 stainless steel A4 pan head H form C A4-PAN-HD-S/TAPPING-SCREWS-DIN7981-M4,2X16

Pickup Availability:

Malta

(Out of Stock)

Features

Material	Stainless steel A4
Surface	Bare
Form	C
Nominal diameter (d₁)	4.2 mm
Length (l₁)	16 mm
Head diameter (d_k)	8.2 mm
Head height (k₁)	3.05 mm
Internal drive	H2
DIN	7981
Head type	Pan head
Declaration of performance (EU-CPR)	No
Standards	DIN 7981

Specifications

DIN 7981 A4 stainless steel, shape C, pointed

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

Notice

Self-tapping screws made from stainless steels are softer than those made from case-hardening steel. These screws are therefore not able to form a counter thread in steel plates. For this reason, they should only be used in soft materials, such as aluminium.