Internal Combustion Engines - Fuel Injection Nozzle Holders - Part 3 : Screw Mounted Injection Nozzle Holders, Types 12, 13, 14,15, 16, 17, 18 and 19

This specification outlines the technical requirements and dimensional parameters for screw-mounted fuel injection nozzle brackets used in internal combustion engines. The document specifically addresses Type 12 through Type 19 brackets, establishing uniformity in design to ensure compatibility and performance reliability across various engine applications. It defines critical geometric characteristics, mounting hole arrangements, and load-bearing capacities essential for the secure attachment of fuel injection nozzles. The content details permissible tolerances, material specifications, and surface treatment criteria necessary for durability under operating conditions. Furthermore, it provides guidelines for manufacturing processes and quality control measures to maintain consistency in production. Adherence to these parameters facilitates interchangeability of components among different machinery platforms while supporting safety and efficiency standards within the automotive and industrial sectors. The document serves as a reference for engineers and manufacturers to design and fabricate brackets that meet established industry norms for structural integrity and functional performance.