M4 Socket Capscrews Cap Heads 12.9 High Tensile Metric Allen Head Hex Key

Socket Head Cap Screws: ISO Metric – Standard (Self-Colour)
High Grade Alloy Steel to BS EN ISO 898/1 Grade 12.9. Suitable for all high tensile applications. Maximum operating temperature (unplated): 300°C.
Dimensions to BS EN ISO 4762 DIN 912