Overview
Wuyuan Jieyi Automotive Electrical Appliance Co., Ltd. manufactures high-strength fasteners, automotive standard components and custom cold-forged parts. Established in 2010, the company has developed production capabilities in multi-station cold heading, precision thread rolling, CNC machining and automated heat treatment.
Its product range includes bolts, screws, rivets, dowel pins, locating pins, shafts, stepped shafts and other cold-forged components. Manufacturing routes are selected according to part geometry, material
Core Manufacturing Processes
Multi-Station Cold Heading
Jieyi uses multi-station cold-heading machines to form wire into standard fasteners and drawing-based non-standard parts. Its published cold-heading range includes irregular components formed to technical drawings, with the tooling and forming route developed around the required contour and dimensions. Automotive wiper rivets are also identified as cold-headed products; parts requiring additional features proceed to machining, heat treatment or surface treatment as specified.
Precision Thread Rolling
Jieyi operates thread-rolling machines for threaded fasteners. Where a part requires an external thread, thread rolling is scheduled after blank forming according to the drawing and thread specification. The company's published production route for slotted rivets includes cold heading, threading, heat treatment and surface finishing; the exact sequence depends on the part design.
CNC Machining and Centerless Grinding
CNC machining is included in Jieyi's specialized production capabilities, while centerless grinders are listed among its production equipment. Machining is used to complete drawing-defined features on cold-headed custom components. Centerless grinding can be included for cylindrical parts when the specified dimensions or surface finish require it; neither operation is required for every product.
Automated Heat Treatment
For fasteners and custom components that require heat treatment, Jieyi uses controlled quenching and tempering as part of the manufacturing route. Treatment parameters are set according to the material and required mechanical properties to achieve the specified tensile strength, hardness and toughness. Heat treatment is applied according to the component specification, not automatically to every part.
Surface Treatment
Jieyi's published surface-treatment options include galvanizing, Dacromet coating, black zinc plating and blackening. The selected finish is matched to the part material, drawing requirements and intended service environment. Product-specific options may vary; the slotted rivet range also lists nickel plating, chrome plating, phosphating and passivation
Efficiency leap Precision and stability
Jieyi's published production equipment includes multi-station cold heading machines, thread-rolling machines, centerless grinders, ultrasonic cleaning machines, automatic feeders and automatic packaging machines. The company also identifies CNC machining and automated heat treatment as part of its manufacturing capabilities.
Efficiency leap Precision and stability
Jieyi manufactures standard fasteners, automotive components and non-standard cold-forged parts. Its published product range covers the following component groups:
- Rivets - Miniature rivets, flat-head rivets, countersunk solid rivets, slotted rivets, semi-tubular rivets and other formed rivet designs.
- Bolts and Screws - Standard and automotive fasteners produced according to the applicable product specification.
- Pins - Dowel pins, locating pins, cylindrical pins, clevis pins, grooved pins and connecting pins.
- Shafts - Revolving shafts, stepped shafts and other cylindrical components used in mechanical assemblies.
- Custom Cold-Forged Components - Non-standard metal parts with drawing-defined heads, shoulders, grooves, steps, holes or threaded features.
Production Capacity and Manufacturing Scale
Jieyi reports a daily production capacity of up to 1.5 million pieces. Its production infrastructure supports both standardized fastener manufacturing and the production of custom non-standard components.
Output for an individual part depends on its size, geometry, forming sequence, material, tooling setup, secondary operations and order mix. The production schedule and achievable quantity are therefore determined by the requirements of each component rather than by a single output rate applied to every product.
Frequently Asked Questions
Can samples be provided before a custom fastener order?
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Stock samples are free, with freight paid by the customer. Non-standard sample development takes about one month; complex irregular or special-material parts may take 2–3 months.
What are the MOQ, lead time and shipping terms for custom cold-headed parts?
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MOQ is negotiable according to tooling and raw-material costs. After sample approval, simple parts take 10–15 working days and complex parts 20–30 working days. Parts are cushioned and moisture-protected; bulk orders are palletized and stretch-wrapped. EXW, FOB, CIF and CFR are available.
Can the groove profile of a slotted rivet be customized?
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Yes. The published range includes groove widths of 0.5–1.5 mm and depths of 0.2–0.5 mm. U- or V-shaped grooves, their positions and their quantity can be specified by drawing.
How are automotive wiper rivet dimensions determined?
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Dimensions are matched to the wiper assembly's hinge-hole size and plate thickness so the rivet secures the arm and link while allowing the joint to oscillate.