Precision Cold Heading Dies and Fastener Tooling
Custom carbide dies, nut forming dies, punch pins and thread rolling dies manufactured from drawings for bolt, screw and nut production.
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Factory Tour See Our Workshop
Take a look inside our precision mould manufacturing facility.
Precision Moulding We Provide
We provide a full range of solutions for all kinds of cold heading mould, including multi-station bolt and nut mould, cold extrusion mould, vertical forging mould.
Bolt & Screw Forming Dies
Dies for bolt and screw forming, specified around the part drawing, machine and forming station.
Nut Forming Dies
Nut-forming dies and inserts for the required cavity, hole geometry and forming sequence.
Segmented & Open-Close Dies
Split tooling for formed parts that need a planned opening and release route.
Header Punches & Punch Pins
Head and recess-forming punches, with tip geometry and shank fit checked against the drawing.
Thread Rolling Dies
Flat and cylindrical dies selected for the rolling machine, thread profile and blank material.
Cold Heading Machine Tooling & Parts
Cut-off tooling and machine parts checked for mounting dimensions, alignment and the working stroke.
- About JUNGU
A Special-shaped Heading
Die Expert
Suzhou Jungu Precision Mould Co., Ltd. has manufactured drawing-based fastener tooling since 2014. We have advanced production lines and a team of experienced staff. We provide a full range of solutions for all kinds of cold heading mould, including multi-station bolt and nut mould, cold extrusion mould, vertical forging mould.
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We Mainly Have Three Capabilities
Professional mould simulation development and design capability.
High-precision and high-stability mould manufacturing capability.
Optimization capability for continuous improvement of mould life.
5000 m2
Factory covers
90+
Employees
170+
Equipment
Since 2014Precision tooling
- +GF+ Slow Wire Cutting Machine Accuracy: 0.002
- MAKINO Electrical Discharge Machining Accuracy: 0.003
- Putzmeister Fluid Polishing Machine Accuracy: Ra0.1
- TOYO Sputtering Polishing Machine Accuracy: Ra0.1
- VICTOR TAICHUNG CNC Lathe Accuracy: 0.005
- TAKISAWA CNC Lathe Accuracy: 0.005
- Mitutoyo Optical Contour Measuring System, Mitutoyo Coordinate
- Measuring Machine, Mitutoyo Surface Roughness Tester, etc.
Business Areas We Cover
Backed by excellent technical strength and talent advantages, Jungu strives to provide customers with cost-effective products and services, and customer satisfaction is our eternal pursuit.
Simulation Mould Design
OEM Service
Latest News
We have built cooperation with many brands around the world, such as WURTH, EJOT, NEDSCHROEF, UNISTEEL, NORMA GROUP and more.
Apple Charger Plug Pin Mold: Case Study on Production Challenges and Solutions
Case study on charger plug pin mold design: copper alloy forming risk, scratch control, profile compensation, inspection points, and RFQ inputs.
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Volkswagen Stainless Steel Internal Torx Door Lock Bolt Tooling Case
Automotive internal Torx door lock bolt tooling case: stainless steel forming, punch wear, mirror EDM, polishing, coating, and RFQ checks.
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Italian Customer Visits Jungu for Bolt and Nut Tooling
An Italian customer visited Jungu on October 8, 2026 to discuss bolt and nut tooling, manufacturing processes and delivery lead times. See photos and video.
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Cold Heading Tooling Live in Istanbul: Highlights from Fastener Expo Eurasia 2026
Meet Jungu at Fastener Expo Eurasia 2026 in Istanbul. Explore cold heading tooling and custom die samples, and send your drawings for an engineering review.
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