Set screw, hex socket, cup point
ISO 4029, acid-resisting steel A4, 21H, uncoated
ISO 4029 21H A4 M4X16
With registration you can access the Würth Elektro online shop selection.
The hardness class 21H is equivalent to hardness 210 HV
Tip:
A2/A4 stainless steel set screws are not specially hardened and may be used for tensile loads.
ISO 4029 replaces DIN 916 | There are some consistencies | Nominal diameters for M1.4, M1.8, M14, M18, and M22 are removed | Hardness classes for stainless steels introduced.
Datasheets(X)
 | |
Thread type x nominal diameter (d) | M4 |
Length (l) | 16 mm |
Ring cutter diameter (d) | 2 mm |
Internal drive (s) | HS2 |
Standards | ISO 4029 |
Material | Stainless steel A4 |
Surface | Plain |
Hardness category | 21H |
Drive type | Hexagon socket |
Shape of tip | Cup point |
RoHS-compliant | Yes |
Last viewed
Emergency light Easy Combo centrally supplied
Mounting plate Cubo O/C
Cover plate Instal
Crimp sleeve WEBSOS
Downlight Optic XS Tilt, IP44
CONDUCTOR TAG STRIP 4.0–6.0 MM2 Black letters on a yellow background
Nylock nut, low profile, clamping piece (non-metal insert, ring)
Lock washer, type B
Cover plate 85 mm Exxact Basic
Vehicle protecting tube PAER