8.8 Metric Bolts Fine Thread Hex Hd C/S 10x1.25x20mm

Sold in sets of 25 One thing that’s nice about the ISO 898-1 property class designations is that the approximate tensile strength is right there on the bolt head marking. Property Class 8.8 bolts and screws have a minimum tensile strength of 800 MPa for bolts and screws 16mm in diameter and under, and 830 MPa for bolts and screws with a diameter over 16mm.  So a Property Class 8.8 bolt or screw is a medium-strength fastener that’s roughly the same strength as an SAE J429 Grade 5 fastener.