Custom Screw Manufacturing
Serving OEM & Industrial Projects with precision cold heading, thread rolling, and CNC finishing. Fully customized to your drawings and specifications.
Manufacturing Capabilities
- Cold Heading • Thread Rolling • CNC Precision Machining
- ISO Quality System • Full Process Traceability
- Rapid Prototyping • Stable Mass Production
Materials & Standards
- Carbon/Alloy Steel, SS304/316/410, Brass, Titanium
- Strength Grades: 4.8–12.9, A2/A4 • RoHS/REACH Compliant
- Optional 100% Full Inspection Available
Key Specifications Quick overview
Size range
M1–M30 / #0–1-1/4”, length 2–400 mm
Thread standard
UNC/UNF, Metric, Metric Trapezoidal, Triangular Thread, Non-standard Customization
Head shape/drive
Hex, socket head cap, Torx®, round head, countersunk head, pan head, slotted, Phillips head, combination
Surface treatment
Zinc plating/nickel-zinc plating, blackening, DacroMat®/Geomet®, hot-dip galvanizing, passivation, electropolishing
Technical documents
2D/3D, FAI, PPAP, Materials 3.1, COA
Our production Screw types
We specialize in manufacturing a wide range of high-quality screws to meet the needs of various industrial applications. Any head type, drive, material, and thread can be customized according to drawings or samples.
Self-tapping screws
Suitable for connecting thin metal sheets with self-tapping thread capability. Quick and easy installation makes them ideal for home appliances, automotive applications, and general assembly work where efficiency is key.
Machine screws
Standard mechanical connection screws designed for use with nuts or threaded holes. High load-bearing capacity and consistent performance make them perfect for mechanical equipment assembly and structural applications.
Hex socket head cap screws
Precision machined with internal hexagon drive for stable torque transmission. Low profile head design allows for countersinking applications. Ideal for precision machinery, automated equipment, and tight space installations.
Set screw/set screw
Headless design specifically engineered for fixing and positioning applications. Prevents relative movement between components and provides secure locking. Widely used in bearing assemblies, gear fixing, and shaft positioning systems.
Self-drilling screws
Integrated drilling and tapping eliminates pre-drilling requirements, significantly improving construction efficiency. Drill point penetrates metal while threads form simultaneously. Perfect for steel structure and metal curtain wall installations.
Wood screws/dryboard screws
Specifically designed for wood and gypsum board applications with optimized thread depth for maximum grip strength. Sharp point penetrates easily while preventing material splitting. Essential for building decoration and construction industries.
Miniature screws
Precisely manufactured micro-sized fasteners for high-precision applications requiring exceptional accuracy. Perfect for electronic products, precision instruments, medical equipment, and delicate assembly work where space is limited.
Cylindrical step/shoulder screw
Special stepped design provides precise positioning and spacing control with consistent shoulder dimensions. Maintains exact component alignment and prevents over-tightening. Essential for mold applications and precision assembly systems.
SEMS (Pre-loaded gaskets)
Pre-installed gasket design eliminates gasket loss and improves assembly efficiency significantly. Ensures consistent sealing performance and reduces installation time. Ideal for electrical equipment and applications requiring reliable sealing.
Anti-tamper/security screws
Special drive slot design prevents unauthorized disassembly and provides enhanced security protection. Requires specialized tools for installation and removal. Widely used in security systems and public facilities requiring tamper resistance.
Professional customization service
With 30 years of manufacturing experience and 10 production lines, we can precisely customize according to your drawings and samples to meet various special specifications and performance requirements.
Industries We Serve
30 years of professional expertise, providing precision metal casting solutions to industries worldwide, meeting stringent quality standards and technical requirements
Automotive
Engine Parts, Transmission Systems
Electronics
Precision Connectors, Housings
Industrial Equipment
Machinery Parts, Valves
Construction
Structural Components, Fasteners
Energy
Power Equipment, Pipelines
Appliances
Housings, Brackets
Furniture Hardware
Hinges, Slides, Handles
Marine
Marine Parts, Bolts
HVAC
Ventilation Ducts, Valve Components
General Hardware
Standard Parts, Custom Components
Automotive High-Precision Screw Project
Project Specifications:
- Material: SCM435 Alloy Steel
- Grade: 10.9 Grade Torx® Flange Screws
- Finish: Trivalent Chromium Zinc Plating
- Volume: 320,000 pieces quarterly
- Quality Standard: AQL 0.15%
Supplying critical transmission system screws for a leading European automotive manufacturer, ensuring exceptional consistency and reliability through rigorous quality control and precision machining processes.
SCM435 Grade 10.9 Torx® Flange Screws
Trivalent Chromium Zinc Plating • Automotive Grade Quality
Full Customization Options
With 30 years of professional experience and advanced manufacturing processes, we offer a full range of screw customization services to meet your precise needs for specifications, materials, strength, and surface treatment.
Head shape options
Drive Types
Thread Specifications
Material Grades
Strength/Hardness
Heat Treatment Options: Carburizing, Through-Hardening
Coating Systems
Customized salt spray test reports available upon request
Complete Identification & Traceability System
Full traceability management from production to delivery, ensuring product quality and supply chain transparency
Head Marking
Laser engraved specifications, batch and key information
Heat Lot Number
Material source and heat treatment batch traceability
Barcode System
Digital management, scan to query details instantly
Packaging Labels
Custom format for clients with graphic identification
Professional Engineering Team • 24-Hour Response • Free Technical Consultation
Streamlined Production Workflow
From initial quotation to final delivery, our proven 7-step process ensures quality, efficiency, and complete transparency throughout your project lifecycle.
Quotation & DFM Review
Comprehensive drawing and specification verification with cost optimization recommendations to maximize manufacturability and value.
- Technical specification analysis
- Cost reduction suggestions
- Manufacturing feasibility assessment
Tooling & Sampling
Precision tooling development including cold heading dies and thread rolling wheels, followed by sample confirmation.
- Cold heading die fabrication
- Thread rolling wheel preparation
- Sample production & approval
Trial Production
Capacity and capability verification with first article inspection and measurement system analysis as required.
- Production capacity validation
- First article inspection
- Gauge R&R studies (as needed)
Mass Production
Full-scale manufacturing with statistical process control (SPC) monitoring of critical quality characteristics and regular inspections.
- Critical CTQ monitoring with SPC
- Regular patrol inspections
- Process optimization
Heat Treatment
Advanced heat treatment processes (quenching, tempering, carburizing/nitriding) to achieve specified mechanical properties, strength, hardness, and long-term durability.
- Quenching & tempering for balanced strength and toughness
- Carburizing or nitriding for surface hardness and wear resistance
- Hardness testing & metallographic inspection to verify results
Surface Treatment & Marking
Professional surface finishing including coating, pre-coating, marking, and labeling to meet your exact specifications.
- Coating & pre-coating application
- Part marking & identification
- Custom labeling solutions
Final Inspection
Comprehensive quality control following ISO2859 sampling standards or your custom inspection plan, with optional 100% inspection.
- ISO2859 sampling inspection
- Custom inspection plans
- Optional 100% full inspection
Packaging & Shipping
Professional export packaging with palletized containers, complete with certificates of origin and all required customs documentation for seamless international delivery.
- Export-grade packaging
- Palletized container loading
- Certificate of origin
- Complete customs documentation
Typical Production Timeline
Our streamlined process delivers consistent results within predictable timeframes, ensuring your project stays on schedule.
Advanced Manufacturing Capabilities
Six core manufacturing processes powered by cutting-edge technology and decades of expertise, delivering precision components that exceed industry standards.
Cold Heading Forming
High-efficiency cold forming technology that enhances grain flow structure and maximizes component strength through precise metal deformation.
Thread Rolling Forming
Precision thread rolling technology delivering accurate thread profiles with superior fatigue resistance for critical applications.
CNC Secondary Processing
Advanced CNC machining capabilities for drilling, slotting, turning, milling, and precision forming operations.
Heat Treatment
Controlled atmosphere furnaces ensuring precise hardness control with full testing and certification capabilities.
Surface Treatment
In-house and certified outsourced surface treatments with full compliance documentation and traceability.
Assembly & Kits
Complete assembly solutions including SEMS combinations, O-rings, nylon locking, and pre-applied threadlocker.
Get detailed specifications and discuss your custom requirements with our engineering team
Production Excellence by the Numbers
Our manufacturing capabilities are backed by impressive production metrics and quality achievements
Quality Systems & Certifications
Our commitment to excellence is validated through rigorous international certifications, proprietary patents, and comprehensive quality management systems.
ISO 9001:2015 Certification
International standard for quality management systems, ensuring consistent quality and customer satisfaction across all production processes.
- Process Standardization
- Continuous Improvement
- Customer Focus
SGS Quality Verification
Global leader in inspection, verification, testing and certification services validating our quality standards and material integrity.
- Material Testing
- Quality Inspection
- Global Recognition
Proprietary Patents
Innovative casting technologies and processes protected by multiple patents, ensuring superior quality and production efficiency.
- Advanced Casting Methods
- Process Optimization
- Quality Enhancement
Frequently Asked Questions
Get answers to common questions about our custom metal casting services, quality standards, and production capabilities.
Still Have Questions?
Our technical experts are ready to discuss your specific requirements and provide detailed solutions for your custom metal casting needs.
Get Your Custom Quote Today
Share your project requirements with our experts and receive a detailed quote for your custom metal casting needs within 24 hours.
Your Privacy is Our Priority
At Shandong Prime International Trade Co., Ltd., we understand the importance of protecting your business information and maintaining the highest standards of confidentiality.
Secure Data Handling
All information is encrypted and stored securely following international data protection standards.
Confidential Project Details
Your technical specifications and project requirements remain strictly confidential.
No Third-Party Sharing
We never share your information with competitors or unauthorized parties.
ISO Certified Security
Our data handling procedures are part of our ISO 9001:2015 certified quality management system.
30+ years of trusted partnerships with global companies. Your business secrets are safe with us.