M30 x 340mm Socket Cap Head Screw, Self Colour, Grade 12.9 high tensile steel, DIN 912 UNC - Self Colour Grade 12.9 Shoulder Socket Screws but a pilot hole helps

but a pilot hole helps with regards the harder materials

Supplied with a phillips-drive / cross recess 4

providing a strong and secure hold

A reliable surface finishing solution that will get the job done

“Self-colour” means the screw is supplied in its natural steel finish after heat treatment

M30 x 340mm Socket Cap Head Screw, Self Colour, Grade 12.9 high tensile steel, DIN 912 UNC - Self Colour Grade 12.9 Shoulder Socket Screws but a pilot hole helpsM30 cap head screw Cap head screw with a deep internal socket drive allowing easy installation, loosening, and the application of torque for a secure hold. With a compact cylindrical head thats ideal when space is tight and combined with a deep socket recess allows torque to be applied easily with an Allen key making them a popular choice. A self colour machine screw manufactured in grade 12. 9 high tensile steel for reliability and in accordance with