Brass DIN 7985 Screws
Comprehensive Overview of Premium Brass DIN 7985 Screws
We are a specialised manufacturer and global supplier of precision-engineered Brass DIN 7985 Screws, serving industries that require reliable fastening solutions with superior corrosion resistance and consistent quality. Our DIN 7985 screws are manufactured from C36000 Free-Cutting Brass, renowned for its excellent machinability, good mechanical properties, and outstanding corrosion resistance. These metric machine screws feature a Phillips drive pan head design that complies with German Institute for Standardization (DIN) specifications, ensuring dimensional consistency and reliable performance in various applications. With advanced manufacturing capabilities and strict quality control processes, we deliver brass DIN 7985 screws that excel in electrical, marine, industrial, and architectural applications where corrosion resistance and reliable fastening are paramount.
Brass DIN 7985 Screws – Standardised Metric Fastening Solutions
Brass DIN 7985 Screws are standardised metric fasteners characterised by their pan head with Phillips drive and fully threaded machine screw design. These screws combine the benefits of standardised dimensions with the superior corrosion resistance of brass, making them ideal for applications where both mechanical reliability and environmental resistance are required. The pan head design provides a larger bearing surface than flat head screws while maintaining a relatively low profile compared to hex head bolts.
Applications of Brass DIN 7985 Screws
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Electrical Enclosures: Control panels, switchgear, electrical cabinets, and distribution boards
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Marine Equipment: Boat fittings, marine hardware, coastal installations, and navigation equipment
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Industrial Machinery: Equipment assembly, machine guards, control systems, and automation equipment
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Telecommunications: Communication cabinets, network equipment, and server racks
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Automotive Components: Electrical systems, interior trim, and non-structural applications
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Furniture Manufacturing: High-quality furniture assembly, fixtures, and architectural woodwork
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Medical Equipment: Non-magnetic medical devices, laboratory equipment, and diagnostic instruments
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Audio Equipment: Speaker cabinets, amplifier chassis, and professional audio gear
Brass Alloy Specifications for DIN 7985 Screws
Brass Alloy | UNS Designation | Composition | Key Properties | Applications |
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Free-Cutting Brass | C36000 | 61.5% Cu, 35.5% Zn, 3% Pb | Excellent machinability, good strength, reliable performance | General purpose, standard industrial applications |
Naval Brass | C46400 | 60% Cu, 39.2% Zn, 0.8% Sn | Superior corrosion resistance, high strength | Marine, coastal, chemical environments |
Cartridge Brass | C26000 | 70% Cu, 30% Zn | Higher conductivity, good corrosion resistance | Electrical applications, decorative uses |
Brass DIN 7985 Screw Technical Specifications
Parameter | C36000 (Free-Cutting Brass) | C46400 (Naval Brass) | C26000 (Cartridge Brass) |
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Tensile Strength (MPa) | 340 – 470 | 380 – 480 | 325 – 410 |
Yield Strength (MPa) | 125 – 310 | 170 – 240 | 105 – 195 |
Shear Strength (MPa) | 240 – 310 | 260 – 330 | 220 – 280 |
Corrosion Resistance | Excellent | Superior | Excellent |
Electrical Conductivity (% IACS) | 26% | 25% | 28% |
Standard Sizes: M2, M2.5, M3, M4, M5, M6, M8, M10
Thread Pitches: Standard metric coarse threads (ISO 261)
Drive Type: Phillips recess (Type H according to ISO 4757)
Head Diameter: Standardised according to DIN 7985 specifications
Standards Compliance: DIN 7985, ISO 7045, ISO 4757, RoHS compliant
Product Range & Technical Specifications
Standard DIN 7985 Machine Screws
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Head Style: Pan head with rounded top and flat bearing surface
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Drive Recess: Phillips cross recess (Type H)
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Thread Type: Metric coarse thread (standard pitch)
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Point Style: Flat point with chamfered end
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Materials: C36000 brass with various plating options
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Finishes: Natural brass, electro-tin plated, nickel plated
Special Length DIN 7985 Screws
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Length Range: 3mm to 60mm depending on diameter
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Thread Length: Fully threaded standard
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Custom Lengths: Available in 1mm increments
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Applications: Specific thickness applications, special projects
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Packaging: Bulk packaging or custom counted quantities
Plated DIN 7985 Screws
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Tin Plated: Enhanced corrosion protection, maintains conductivity
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Nickel Plated: Superior corrosion and wear resistance
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Clear Coated: Protection while maintaining brass appearance
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Passivated: Chemical treatment for maximum corrosion resistance
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Custom Plating: Special plating requirements available
DIN 7985 Screw Kits & Assortments
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Size Assortments: Multiple sizes in organised kits
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Application Kits: Specific application-focused selections
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Maintenance Kits: Comprehensive screw collections for maintenance
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OEM Kits: Custom kits for specific product assemblies
Manufacturing Processes & Quality Control
Our Brass DIN 7985 Screws are manufactured through precision-controlled processes:
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Material Selection: Certified brass wire meeting DIN 1654 specifications
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Cold Heading: Multi-station forming of pan head and screw shank
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Phillips Drive Stamping: Precision stamping of cross recess
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Thread Rolling: Precision thread formation using flat-die rolling
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Heat Treatment: Stress relieving for dimensional stability
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Surface Finishing: Deburring, cleaning, and surface preparation
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Plating Process: Electroplating with various finish options
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Quality Inspection: 100% dimensional and visual inspection
Quality Assurance Tests:
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Dimensional Verification: Comprehensive checking to DIN 7985 specifications
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Head Dimensions: Verification of head diameter, height, and bearing surface
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Thread Gauging: Go/No-Go testing per ISO 1502 standards
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Drive Recess Inspection: Depth, angle, and geometry of Phillips recess
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Surface Finish: Verification of surface quality and appearance
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Plating Thickness: XRF verification per DIN 50967 standards
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Salt Spray Testing: Corrosion resistance validation per DIN 50021
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Torque Testing: Drive torque and stripping torque validation
Technical Data & Performance Specifications
Dimensional Specifications (Key Sizes)
Screw Size | Thread Pitch | Head Diameter | Head Height | Bearing Diameter | Drive Size |
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M3 | 0.5mm | 5.5mm ± 0.2mm | 2.0mm ± 0.15mm | 3.2mm ± 0.2mm | PH1 |
M4 | 0.7mm | 7.0mm ± 0.25mm | 2.6mm ± 0.15mm | 4.3mm ± 0.25mm | PH2 |
M5 | 0.8mm | 8.5mm ± 0.3mm | 3.1mm ± 0.15mm | 5.3mm ± 0.3mm | PH2 |
M6 | 1.0mm | 10.0mm ± 0.3mm | 3.6mm ± 0.15mm | 6.4mm ± 0.3mm | PH3 |
M8 | 1.25mm | 13.0mm ± 0.35mm | 4.8mm ± 0.2mm | 8.4mm ± 0.35mm | PH3 |
M10 | 1.5mm | 16.0mm ± 0.4mm | 6.0mm ± 0.2mm | 10.5mm ± 0.4mm | PH4 |
Mechanical Performance Data
Screw Size | Tensile Strength | Proof Load | Torque Specification | Strip Torque |
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M3 | 2.5 kN | 2.0 kN | 0.8-1.2 Nm | 2.0 Nm |
M4 | 4.8 kN | 3.8 kN | 1.8-2.5 Nm | 4.0 Nm |
M5 | 7.5 kN | 6.0 kN | 3.5-5.0 Nm | 7.5 Nm |
M6 | 11.2 kN | 9.0 kN | 6.0-8.5 Nm | 12.0 Nm |
M8 | 20.5 kN | 16.4 kN | 14.0-19.0 Nm | 25.0 Nm |
M10 | 32.8 kN | 26.2 kN | 28.0-38.0 Nm | 45.0 Nm |
Design Features & Benefits
Brass DIN 7985 Screw Advantages
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Standardised Dimensions: Consistent sizing for interchangeable use
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Superior Corrosion Resistance: Excellent performance in harsh environments
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Phillips Drive Efficiency: Good torque transfer with reduced cam-out
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Pan Head Benefits: Larger bearing surface with moderate profile
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Non-Magnetic Properties: Ideal for electrical and sensitive applications
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Excellent Machinability: Precision manufacturing for consistent quality
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Aesthetic Appeal: Professional appearance for quality equipment
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Long Service Life: Maintains mechanical and corrosion properties
Performance Characteristics
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Reliable Fastening: Consistent performance in various materials
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Good Load Distribution: Pan head design spreads clamping force
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Vibration Resistance: Maintains tightness in dynamic applications
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Easy Installation: Phillips drive for efficient assembly
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Chemical Resistance: Withstands exposure to various chemicals
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Temperature Stability: Consistent performance across operating ranges
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Electrical Conductivity: Suitable for grounding applications
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UV Resistance: Maintains appearance in outdoor applications
Industry Compliance & Certifications
International Standards Compliance
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DIN 7985: Cross recessed pan head screws with metric thread
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ISO 7045: Pan head screws with type H or type Z cross recess
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ISO 4757: Cross recesses for screws
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ISO 261: ISO general purpose metric screw threads
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RoHS 3: Restriction of hazardous substances
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REACH: Chemical safety regulations
Quality Certifications
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ISO 9001:2015: Quality management system certification
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Material Certifications: Full traceability from raw material to finished product
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Dimensional Certification: Compliance with DIN 7985 specifications
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Plating Certification: Compliance with plating thickness standards
Frequently Asked Questions (FAQ)
Q1: What are the key differences between DIN 7985 and other pan head screw standards?
DIN 7985 screws feature standardised metric dimensions with specific head diameter to thread size ratios, defined bearing surface dimensions, and standardised Phillips recess geometry. Compared to other standards, DIN 7985 ensures consistent dimensional accuracy and interchangeability across different manufacturers. The standard specifies exact head proportions, drive recess dimensions, and quality requirements that ensure reliable performance in demanding applications.
Q2: Can brass DIN 7985 screws be used in outdoor and marine applications?
Yes, brass DIN 7985 screws are excellent for outdoor and marine applications, particularly when manufactured from naval brass (C46400). The material’s natural corrosion resistance makes it suitable for saltwater exposure, high humidity, and coastal environments. Unlike steel screws that require protective coatings, brass provides inherent corrosion resistance throughout the material, ensuring long-term reliability without surface treatment failure.
Q3: What plating options are available for brass DIN 7985 screws?
We offer multiple plating options including electro-tin plating for enhanced corrosion protection while maintaining good electrical conductivity, nickel plating for superior corrosion and wear resistance with a bright appearance, clear chromate conversion for maximum corrosion protection while maintaining the brass color, and specialty platings for specific application requirements. The choice depends on your environmental conditions and performance requirements.
Q4: Are DIN 7985 screws compatible with ISO 7045 standards?
Yes, DIN 7985 screws are largely compatible with ISO 7045 specifications, as both standards cover pan head screws with cross recess. However, there may be minor dimensional differences in head proportions and recess dimensions. Our screws are manufactured to meet both standards where applicable, ensuring broad compatibility with international specifications and requirements.
Q5: How do I determine the correct screw length for my application?
Screw length should be selected based on material thickness, required thread engagement, and assembly requirements. For most applications, the screw should provide sufficient thread engagement (typically 1-1.5 times the diameter in the threaded component) while allowing proper clamping without bottoming out. Our technical documentation provides specific length selection guidelines, and our support team can assist with application-specific recommendations.
Why Choose Our Brass DIN 7985 Screws?
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Standard Compliance: Strict adherence to DIN 7985 specifications
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Material Expertise: Comprehensive knowledge of brass alloys and properties
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Precision Manufacturing: Advanced cold heading and thread rolling technology
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Quality Assurance: Rigorous inspection and testing protocols
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Comprehensive Range: Complete size selection from M2 to M10
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Custom Solutions: Special lengths, platings, and packaging options
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Technical Support: Expert guidance on selection and application
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Competitive Pricing: Cost-effective manufacturing without quality compromise
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Global Supply: Reliable delivery to international markets
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Documentation: Complete technical specifications and certifications
Call to Action – Contact Us Today
Secure your applications with our premium brass DIN 7985 screws. Contact us for quotations, technical specifications, or application engineering support.
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Request a Quote: Email your requirements to sales@jambrass.com for comprehensive pricing
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Technical Consultation: +91-22-43449300 – Speak with our fastener specialists
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Documentation Request: sales@jambrass.com – Request detailed specifications and test reports
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Office Address: 1406, 14th Floor, Dalamal Tower, Nariman Point, Mumbai – 400021, Maharashtra, India
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Factory Address: Plot 10B, GIDC Industrial Estate, Shanker Tekari, Udyognagar, Jamnagar, Gujarat – 361004
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Samples Available: Contact us for evaluation samples and performance data
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OEM Partnerships: Comprehensive support for manufacturers and assemblers
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Distributor Inquiries: Special programs for distributors and resellers
We look forward to providing you with the highest quality brass DIN 7985 screws for your metric fastening requirements.