Piston Pins
Piston pins are mainly used in the diesel engine industry and are cylindrical pins mounted on the piston skirt. Its middle part passes through the small head hole of the connecting rod and is used to ...
The Threads of Fasteners (2)
1.3.2 Five Key Elements of Fastener ThreadsThe threads of fasteners are defined by five geometric elements: thread form, diameter, pitch, number of starts, and thread direction (handedness). Only when...
About Us
JNZC is a Leading Manufacturer of Industrial High-Strength Fasteners & Precision Machining Parts.
OEM & ODM
JNZC produces standard and customized different types of fasteners & precision machining parts.
As a professional custom fastener manufacturer, we offer professional ODM and OEM customization services, tailoring solutions to meet specific industry requirements and customer needs.
Physical and Chemical Testing Center
Jinan ZhongChuan (JNZC) Physical and Chemical Testing Center adopt the industry's top testing and inspection equipment. The testing scope covers the chemical composition of metal materials, mechan...
Heat Treatment
Heat Treatment:Nadcap accredited, BV certified Follow AMS 2750 / CQI-9Quenching & TemperingInduction HardeningCarburizing. NitridingMultiple quenching mediaBatch traceabilityComplete tests
JNZC Attended Marintec China 2019 Exhibition
The 20th Marintec China known as the wind vane of the development trend of international marine technology was held in SHANGHAI New International Expo Center from December 3rd to 6th. More than 2300 e...
Studs
Studs are mainly used in occasions where one of the parts to be connected has a large thickness, requires a compact structure, or is not suitable for bolted connections due to frequent disassembly. Th...
U bolts
U bolts are threaded at both ends and can be combined with nuts.It is mainly used to fix tubular objects such as water pipes or sheet objects such as leaf springs of automobiles and can be used to sta...
Nacelle Bolts
Nacelle bolts are used in the nacelle parts of the wind power industry.Property Class: 8.8-12.9.All items are produced in strict accordance with industry standards or client-specific requirements.
Blade Bushings
Blade bushings are used in the wind power industry and are pre-buried at the root of the blade.They are the key components for the reliable connection between the wind turbine host and the blades.All ...
Hydrogen Energy
The hydrogen energy industry chain mainly includes the production, storage, transportation, and application of hydrogen. Fasteners applied in hydrogen production and hydrogen storage are required to h...
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