jambrass

CSK Screws DIN 963 Brass

CSK Screws DIN 963 Brass

$10.11 / kg

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Brass Pan Head Screws

Comprehensive Overview of Premium Brass Pan Head Screws

We are a specialised manufacturer and global supplier of precision-engineered Brass Pan Head Screws, serving industries that require reliable fastening solutions with superior corrosion resistance and consistent quality. Our pan head screws are manufactured from C36000 Free-Cutting Brass, renowned for its excellent machinability, good mechanical properties, and outstanding corrosion resistance. These versatile fasteners feature a slightly rounded head with a flat bearing surface that provides a larger contact area than flat head screws while maintaining a lower profile than hex head bolts. With advanced manufacturing capabilities and comprehensive quality control processes, we deliver brass pan head screws that excel in electrical, marine, industrial, and architectural applications where both functional performance and aesthetic appeal are important.


Brass Pan Head Screws – Versatile Fastening Solutions

Brass Pan Head Screws are designed to provide a balance between low profile and practical bearing surface, making them ideal for a wide range of applications where a protruding head is acceptable but minimal height is desired. The pan head design offers excellent clamping force distribution and is particularly suited for sheet metal, plastic components, and electrical applications where the larger bearing surface helps prevent damage to softer materials while providing secure fastening.

Applications of Brass Pan Head Screws

  • Electrical Equipment: Control panels, switchgear, electrical enclosures, and terminal blocks

  • Marine Applications: Boat fittings, marine hardware, navigation equipment, and coastal installations

  • Industrial Machinery: Equipment assembly, machine guards, control systems, and automation equipment

  • Electronics Manufacturing: PCB mounting, electronic enclosures, and instrumentation assemblies

  • Telecommunications: Communication cabinets, network equipment, and server rack components

  • Automotive Electronics: Electrical systems, sensors, and control modules

  • Furniture Hardware: Quality furniture assembly, fixtures, and architectural elements

  • Medical Equipment: Non-magnetic medical devices and laboratory instrumentation

Brass Alloy Specifications for Pan Head Screws

Brass Alloy UNS Designation Composition Key Properties Applications
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 Pan Head Screw Technical Specifications

Parameter C36000 (Free-Cutting Brass) C46400 (Naval Brass) C26000 (Cartridge Brass)
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, #2, #4, #6, #8, #10, 1/4″
Thread Types: Metric coarse, metric fine, UNC, UNF thread series
Drive Types: Phillips, slotted, Pozidriv, combination drives
Head Finish: Natural brass, electro-tin plated, nickel plated
Standards: ISO 7045, DIN 7985, ASME B18.6.3, RoHS compliant


Product Range & Technical Specifications

Phillips Pan Head Screws

  • Design: Pan head with Phillips cross recess drive

  • Drive Size: PH1, PH2, PH3 according to screw diameter

  • Applications: General industrial, electrical, and assembly applications

  • Features: Good torque transfer, reduced cam-out, widespread compatibility

  • Benefits: Efficient assembly with standard Phillips screwdrivers

Slotted Pan Head Screws

  • Design: Pan head with single slot drive

  • Applications: Traditional equipment, restoration projects, universal compatibility

  • Features: Simple design, works with any flat-blade screwdriver

  • Benefits: Universal tool compatibility, traditional appearance

Pozidriv Pan Head Screws

  • Design: Pan head with Pozidriv recess drive

  • Applications: High-volume production, applications requiring higher torque

  • Features: Additional ribs for better grip, reduced cam-out

  • Benefits: Higher torque capability, improved drive engagement

Combination Drive Pan Head Screws

  • Design: Pan head with combination Phillips/slotted drive

  • Applications: Maintenance, field service, versatile applications

  • Features: Accepts both Phillips and slotted drivers

  • Benefits: Maximum tool compatibility and flexibility


Manufacturing Processes & Quality Control

Our Brass Pan Head Screws are manufactured through precision-controlled processes:

  1. Material Selection: Certified brass wire meeting ASTM B16 specifications

  2. Cold Heading: Multi-station forming of pan head and screw shank

  3. Drive Formation: Precision stamping of Phillips, slotted, or Pozidriv recess

  4. Thread Rolling: Precision thread formation using flat-die rolling

  5. Heat Treatment: Stress relieving for dimensional stability

  6. Surface Finishing: Deburring, cleaning, and surface preparation

  7. Plating Process: Electroplating with various finish options

  8. Quality Inspection: 100% dimensional and visual inspection

  9. Performance Testing: Sample lot testing for mechanical properties

Quality Assurance Tests:

  • Dimensional Verification: Comprehensive checking to standard specifications

  • Head Dimensions: Verification of head diameter, height, and bearing surface

  • Thread Gauging: Go/No-Go testing per ISO 1502 standards

  • Drive Recess Inspection: Depth, angle, and geometry of drive features

  • Surface Finish: Verification of surface quality and appearance

  • Plating Thickness: XRF verification per ASTM B568 standards

  • Salt Spray Testing: Corrosion resistance validation per ASTM B117 (500+ hours)

  • Torque Testing: Drive torque and stripping torque validation

  • Material Certification: Full traceability with mill certificates


Technical Data & Performance Specifications

Dimensional Specifications (Key Sizes)

Screw Size Thread Pitch Head Diameter Head Height Bearing Diameter Drive Size
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
#6 32 TPI 6.3mm ± 0.2mm 2.0mm ± 0.15mm 4.0mm ± 0.2mm #1 Slotted
#8 32 TPI 7.5mm ± 0.25mm 2.4mm ± 0.15mm 4.8mm ± 0.25mm #2 Slotted
#10 24 TPI 9.0mm ± 0.3mm 2.8mm ± 0.15mm 5.6mm ± 0.3mm #2 Slotted

Mechanical Performance Data

Screw Size Tensile Strength Proof Load Torque Specification Strip Torque
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
#8 2.2 kN 1.8 kN 1.5-2.2 Nm 3.5 Nm
#10 3.0 kN 2.4 kN 2.5-3.8 Nm 5.5 Nm

Design Features & Benefits

Brass Pan Head Screw Advantages

  • Optimal Head Profile: Balanced design offering good bearing surface with moderate height

  • Superior Corrosion Resistance: Excellent performance in harsh environments

  • Excellent Electrical Conductivity: Suitable for electrical and grounding applications

  • Non-Magnetic Properties: Ideal for sensitive electronic and medical equipment

  • Good Machinability: Precision manufacturing for consistent quality and performance

  • Aesthetic Appeal: Attractive brass appearance for quality equipment

  • Wide Drive Compatibility: Multiple drive options for different applications

  • Long Service Life: Maintains mechanical and corrosion properties for decades

Performance Characteristics

  • Good Load Distribution: Pan head design spreads clamping force effectively

  • Secure Fastening: Reliable performance in various materials and applications

  • Vibration Resistance: Maintains tightness in dynamic operating conditions

  • Easy Installation: Well-designed drive features for efficient assembly

  • Chemical Resistance: Withstands exposure to various chemicals and solvents

  • Temperature Stability: Consistent performance across operating temperature ranges

  • UV Resistance: Maintains appearance in outdoor applications

  • Wear Resistance: Durable threads and bearing surfaces


Industry Compliance & Certifications

International Standards Compliance

  • ISO 7045: Pan head screws with type H or type Z cross recess

  • DIN 7985: Cross recessed pan head screws with metric thread

  • ASME B18.6.3: Machine screws and metallic drive screws

  • ISO 4757: Cross recesses for screws

  • ISO 261: ISO general purpose metric screw threads

  • RoHS 3: Restriction of hazardous substances

  • REACH: Chemical safety regulations

Quality Certifications

  • ISO 9001:2015: Quality management system certification

  • Material Certifications: Full traceability from raw material to finished product

  • Dimensional Certification: Compliance with international standard specifications

  • Plating Certification: Verification of plating thickness and quality


Frequently Asked Questions (FAQ)

Q1: What are the main advantages of pan head screws compared to other head styles?
Pan head screws offer a balanced design that provides a larger bearing surface than flat head screws while maintaining a lower profile than hex head bolts. This makes them ideal for applications where good clamping force distribution is needed without excessive head height. The rounded edges of pan head screws are also less likely to snag or cause injury compared to sharp-edged hex heads.

Q2: Can brass pan head screws be used in marine and outdoor applications?
Yes, brass pan head screws are excellent for marine and outdoor applications, particularly when manufactured from naval brass (C46400). The material’s inherent corrosion resistance makes it suitable for saltwater exposure, high humidity, and coastal environments. Unlike plated steel screws that can corrode when the plating is damaged, brass provides corrosion resistance throughout the material for long-term reliability.

Q3: What is the difference between Phillips and Pozidriv drive types?
Phillips drive features a simple cross pattern designed to cam out at high torque to prevent over-tightening. Pozidriv drive includes additional ribs between the main cross arms, providing better torque transfer, reduced cam-out, and improved driver engagement. Pozidriv is particularly beneficial in production environments where consistent torque and faster assembly are important.

Q4: How do I select 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. The pan head design requires consideration of the head height when calculating total fastener length requirements.

Q5: What plating options are recommended for different environmental conditions?
We recommend electro-tin plating for general applications requiring good corrosion protection and maintained conductivity, nickel plating for superior corrosion and wear resistance in harsh environments, clear chromate conversion for maximum corrosion protection while preserving the brass appearance, and natural brass for indoor applications where corrosion resistance is sufficient without additional plating. The choice depends on your specific environmental exposure and performance requirements.


Why Choose Our Brass Pan Head Screws?

  • Material Expertise: Comprehensive knowledge of brass alloys and their applications

  • Precision Manufacturing: Advanced cold heading and thread rolling technology

  • Quality Assurance: Rigorous inspection and testing protocols ensuring consistent quality

  • Comprehensive Range: Complete size selection in both metric and imperial systems

  • Drive Options: Multiple drive types to suit different applications and preferences

  • Custom Solutions: Special lengths, diameters, plating, and packaging options

  • Technical Support: Expert guidance on selection and application engineering

  • Competitive Pricing: Cost-effective manufacturing without quality compromise

  • Global Compliance: Products meeting international standards and certifications

  • Reliable Supply: Consistent on-time delivery with flexible production capacity


Call to Action – Contact Us Today

Secure your applications with our premium brass pan head screws. Contact us for quotations, technical specifications, or application engineering support.

  • Request a Quote: Email your requirements to sales@jambrass.com for comprehensive pricing

  • Technical Consultation: +91-22-43449300 – Speak with our fastener specialists

  • Documentation Request: sales@jambrass.com – Request detailed specifications and test reports

  • Office Address: 1406, 14th Floor, Dalamal Tower, Nariman Point, Mumbai – 400021, Maharashtra, India

  • Factory Address: Plot 10B, GIDC Industrial Estate, Shanker Tekari, Udyognagar, Jamnagar, Gujarat – 361004

  • Samples Available: Contact us for evaluation samples and performance data

  • OEM Partnerships: Comprehensive support for manufacturers and product assemblers

  • Distributor Inquiries: Special programs for distributors and resellers

We look forward to providing you with the highest quality brass pan head screws for your fastening requirements.

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