Hexagon socket set screw with pin ISO 4028, steel, 45H, zinc-plated, blue passivated (A2K)

Name: Hexagon socket set screw with pin ISO 4028, steel, 45H, zinc-plated, blue passivated (A2K)
Brand: Würth
SKU: 025708 20

ISO 4028 steel 45H zinc plated
SCR-DOGPT-ISO4028-45H-HS4-(A2K)-M8X20

Art.-no. 025708 20

EAN 4052712166518

All versions

Specification

Notice

Hardness class 45H corresponds to a hardness of 450 HV

ISO 4028 replaces DIN 915 | There is some similarity | Nominal diameters for M1.4, M1.8, M14, M18, M22 are removed | Hardness classes for stainless steels introduced.

Steel set screws are intended for use under compressive stress only (see also DIN EN ISO 898-5). Typical uses include clamping in an adjusting ring or applying pressure to a counterpart. Steel set screws are therefore extremely hard in order to ensure torsional strength in the hexagon socket during tightening/loosening.

Improper application is likely if set screws are welded, tightened and secured with nuts or subjected to bending. Any application of tensile stress is considered improper use and can result in malfunction.

Tip:

A2/A4 stainless steel set screws are not specially hardened and may be used for tensile loads.

Technical information


Thread type x nominal diameter (d₁)	M8
Length (l₁)	20 mm
Diameter of tenon (d₂)	5.5 mm
Length of tenon (l₂)	4 mm
Internal drive (s₁)	HS4
Standards	ISO 4028
Material	Steel
Surface	Zinc plated
Hardness category	45H
Drive type	Hexagon socket
Thread form	Standard metric thread
Shape of tip	Cone shaped
RoHS-compliant	Yes