Item #: 99483372Brand: Value CollectionModel #: Features and Benefits Flat head types have flat surfaces that taper toward the screw body to allow for countersinking. The flat head lies flush against the workpiece. Hex socket drive types have a hex-shaped recess in the head and are driven with hex keys or hex socket bits. The driving surface is protected from external damage and provides six sides of contact surface for added torque. Stainless steel is a strong, corrosion-resistant alloy with excellent resistance to heat. It is used in high-stress, outdoor and corrosive applications. Product Specifications System of Measurement Metric Head Type Flat Drive Type Hex Socket Thread Size (mm) M4x0.70 Length Measurement Type Length Under Head Length (mm) 8.00 Material Stainless Steel Finish/Coating Zinc-Plated Full or Partial Threading Fully Threaded Thread Standard UNF Material Grade 18-8