The primary duty of Engineered Component is a range of mechanical fastening duties. Below: the sectors that specify them in volume, the checklist used to select the right size and material for the application, installation notes, and the known limits of the type. Stocked across roughly M1 to M8, they cover general to heavy-duty work.
Typical Applications for Engineered Component — GB/T 78 / ISO 4027 (Series 025)
The most common settings where these are specified:
- General machine building: fastening covers, brackets, motors and sub-assemblies on production equipment.
- Maintenance & repair (MRO): a stocked size for servicing existing plant where the original fastener spec must be matched.
- Fabrication & metalwork: bench and on-site assembly of steel frames, enclosures and weldments.
How to Specify Engineered Component — GB/T 78 / ISO 4027 (Series 025) for Your Application
- Size: Match the nominal size to the mating thread or hole. This product spans M1–M8; check the full table below for the exact dimensions of each size.
- Material: Choose the material and finish for the service environment — plated steel for general use, stainless for corrosion resistance.
- Environment: For damp, coastal or chemical exposure prefer A4/316 stainless or a suitable coating; indoors, plated steel or A2 is usually sufficient.
- Standard: This product is supplied to GB/T 78 / ISO 4027. Quoting the standard on your order guarantees interchangeable dimensions between suppliers.
Where Engineered Component — GB/T 78 / ISO 4027 (Series 025) Are Not the Right Choice
Match the fastener to the load, environment and whether the joint must be reopened; the wrong class or style is the usual cause of joint failure.