This Sirius Cheese Head Machine Screw is an M5 x 40mm slotted fastener, manufactured from A2 304 stainless steel. The M5 x 40mm length suits heavy-duty engineering and fabrication tasks where a longer M5 fixing is required to pass through thick assemblies or to be used with nuts and washers in structural and machinery applications. The slotted drive accepts a standard flat-blade screwdriver. Features and Benefits: • A2 304 stainless steel construction • Corrosion-resistant, maintenance-free finish • Cheese head for increased bearing surface • Slotted drive for flat-blade screwdriver • Precision metric threads Specifications: Diameter: M5 Length: 40mm Qty: Pack of 1 Contents: Pack of 1