Worcester Bosch Self-Retained Screw No.8 Dog Tip 8716117075

The Worcester Bosch 8716117075 is a No.8 self-retained dog tip screw, supplied as a fixing for the manufacturer's Greenstar i ErP System gas boilers. It is used to secure internal components and covers within the appliance, with the dog tip profile allowing the screw to stay captive in the part it is threaded into during assembly and servicing. It sits within the Worcester Bosch fixings group alongside other bolts, nuts and screws used across the Greenstar platform.

• The screw head is rounded or chewed, so a driver no longer bites cleanly
• Corrosion or surface rust on the thread or head after repeated servicing
• The screw no longer stays retained in its component and drops out during work
• The fixing has been over-tightened and the thread will not hold torque
• A cover or internal component cannot be secured properly because the fixing is missing or damaged

• Check the GC number and serial plate on the appliance to confirm the model before ordering
• Confirm the existing fixing matches the No.8 self-retained dog tip pattern and length
• Note the alternative part number 1031091 when cross-referencing against older documentation
• This part is fitted to a gas appliance; installation must be carried out by a Gas Safe registered engineer.