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Brass Socket Head Screw

Price 6.8 INR/ Piece

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MOQ : 100000 Pieces

Brass Socket Head Screw Specification

Shape
Round

Fastener Type
Screws

Processing Type
Tapping

Finish
Coating, Plating

Application
Furniture, Automobile, Electrical, Electronic

Diameter
5.5 Millimeter (mm)

Tolerance
0.05 Millimeter (mm)

Head Type
round

Material
Brass

Size
m4, m5, m6

Drive Type
socket head

Usage
Furniture, Automobile, Electrical, Electronic

Thread Type
metric an dimperial

Dimension (L*W*H)
m6x20 Millimeter (mm)

Surface Finishing
Plating and Coating

Product Type
Fasteners

Brass Socket Head Screw Trade Information

Minimum Order Quantity
100000 Pieces

FOB Port
Nhavaseva, ICD Khodiyar, Mundra

Payment Terms
Cash Advance (CA), Cash in Advance (CID), Letter of Credit (L/C)

Supply Ability
500000 Pieces Per Month

Delivery Time
15 Days

Sample Policy
If order is confirmed we will reimburse the sample cost

Packaging Details
Bulk Packaging: Plastic bags (500-5000 pcs), cardboard boxes (1000-25,000 pcs), master cartons (25,000-100,000 pcs) for wholesale/industrial orders Retail Packaging: Plastic boxes (10-100 pcs), blister packs (5-25 pcs), ziplock bags with header cards for retail stores and small quantity sales Anti-Corrosion Protection: VCI bags, anti-rust paper wrapping, and silica gel desiccant packs to prevent tarnishing during storage and shipping Custom OEM Packaging: Private label printing, branded boxes, multi-language labeling, and display-ready packaging available (MOQ: 5,000-10,000 pcs) Standard Labeling: Product name, material (Brass CuZn), size, quantity, batch number, barcode, manufacturing date, ISO 7380 standard, and compliance marks (RoHS/REACH) Export Carton Marking: Shipping marks with consignee details, port of destination, order number, carton number, gross/net weight, dimensions, and handling instructions Pallet Packaging: ISPM 15 compliant heat-treated wooden pallets (120 100 cm), stretch film wrapping, steel strapping, corner protectors, load capacity 500-1000 kg per pallet Container Loading Capacity: 20ft container (10-12 pallets/18-22 CBM), 40ft container (20-24 pallets/54-58 CBM), 40ft HC (24-26 pallets/68-72 CBM) Eco-Friendly Options: Recyclable cardboard (FSC-certified), recycled plastic bags, biodegradable packaging, and minimal packaging for sustainability Quality Control: Packaging integrity check, correct quantity verification, label accuracy, moisture protection testing, drop test, and stacking test for export readiness

Main Export Market(s)
Africa, Australia, Central America, North America, South America, Eastern Europe, Western Europe, Asia, Middle East

Main Domestic Market
All India

Certifications
ISO 9001:2015, IATF 16949:2016, RoHS Compliance, REACH Compliance

About Brass Socket Head Screw

Brass Button Head Socket Cap Screws | Dome Head Allen Bolts | ISO 7380 Fasteners

Alternative Names:

Product Overview: Premium quality brass button head socket cap screws featuring a low-profile rounded dome head with hexagonal socket drive (Allen key). Manufactured from high-grade brass alloy, these fasteners combine aesthetic appeal with excellent corrosion resistance. The button head design provides a smooth, rounded surface ideal for applications where a low profile and attractive finish are required.

Key Features:

Material: High-grade brass alloy (CuZn) with superior corrosion resistance
Finish: Polished golden brass finish for decorative and functional applications
Head Type: Button head (dome/mushroom head) with low profile rounded top
Drive Type: Hexagonal socket (Allen key/hex key) for secure torque transmission
Thread Design: Precision machine-cut threads for accurate engagement
Profile: Low-profile head design - sits lower than standard socket head cap screws
Surface: Smooth rounded head eliminates sharp edges and snagging hazards

Technical Specifications:

Material Composition: CuZn brass alloy (Cu 60-65%, Zn 35-40%)
Surface Treatment: Polished/Bright golden brass finish
Thread Type: Machine thread, uniform pitch, full or partial thread
Head Style: Button head (ISO 7380) with rounded dome profile
Drive Type: Hexagonal socket (Allen key compatible)
Standards Compliance: ISO 7380, DIN 7380, ANSI B18.3, BS 7371

Head Design Specifications:

Head Profile: Low-profile rounded dome (button/mushroom shape)
Head Height: Approximately 0.6 diameter (lower than standard socket head cap screws)
Head Diameter: Approximately 2 shaft diameter (wider bearing surface)
Socket Depth: Standard depth for secure hex key engagement
Socket Size: Metric hex sizes (1.5mm to 10mm) or Imperial hex sizes (#0.05" to 3/8")

Applications:

Furniture & Cabinetry: Decorative fastening with smooth, rounded appearance
Electronics Enclosures: Low-profile mounting for covers and panels
Automotive Interior: Dashboard, console, and trim fastening
Marine Hardware: Corrosion-resistant fastening for boat fittings and deck hardware
Machinery Guards: Safety covers requiring smooth, snag-free surface
Electrical Panels: Low-profile mounting for control panels and switchgear
Musical Instruments: Decorative hardware for guitars, drums, and brass instruments
Sporting Equipment: Bicycle components, gym equipment, and recreational gear
Architectural Hardware: Handrails, signage, and decorative metalwork
Medical Equipment: Smooth surface fasteners for patient-contact areas
Food Processing Equipment: Easy-to-clean rounded head design
Playground Equipment: Safe, rounded fasteners without sharp edges
Display Fixtures: Retail displays, exhibition stands, and point-of-sale units
Lighting Fixtures: Decorative mounting for lamps and light fittings
HVAC Equipment: Low-profile fastening for air conditioning and ventilation covers

Advantages: Low Profile Design: Button head sits lower than standard socket head cap screws, ideal for space-constrained applications Smooth Rounded Surface: Eliminates sharp edges, reduces snagging hazards, safer for contact applications Wider Bearing Surface: Larger head diameter distributes load over greater area, reduces surface damage Aesthetic Appeal: Attractive rounded dome head with golden brass finish for decorative applications Corrosion Resistant: Brass composition ensures long-lasting performance in humid, marine, and outdoor environments Non-Magnetic: Suitable for electronic equipment and sensitive instrumentation Electrical Conductivity: Can be used for grounding and bonding applications Easy to Clean: Smooth rounded surface prevents dirt accumulation, ideal for hygiene-critical applications Secure Drive: Hexagonal socket provides excellent torque transmission without cam-out Tamper Resistance: Requires hex key tool, provides basic security against casual removal Versatile Material Compatibility: Suitable for wood, plastic, soft metals, composites, and laminates Professional Appearance: Clean, modern look for visible fastening applications

Available Sizes:

Metric Sizes (ISO 7380):

Diameter: M2, M2.5, M3, M4, M5, M6, M8, M10, M12
Length: 4mm to 80mm (varies by diameter)
Head Diameter: 3.8mm to 21.5mm (proportional to shaft diameter)
Head Height: 1.2mm to 6.5mm (low profile)
Socket Size: 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 6mm, 8mm, 10mm hex

Imperial Sizes (ANSI B18.3):

Diameter: #2-56, #4-40, #6-32, #8-32, #10-24, #10-32, 1/4"-20, 1/4"-28, 5/16"-18, 5/16"-24, 3/8"-16, 3/8"-24
Length: 3/16" to 3" (varies by diameter)
Head Diameter: 0.150" to 0.750" (proportional to shaft diameter)
Head Height: 0.048" to 0.256" (low profile)
Socket Size: 0.05", 1/16", 5/64", 3/32", 1/8", 5/32", 3/16", 1/4", 5/16", 3/8" hex

Thread Specifications:

Coarse Thread (Standard): Most common, general-purpose applications
Fine Thread: Available on request for precision applications
Full Thread: Thread extends to head for maximum engagement
Partial Thread: Unthreaded shank section for specific applications
Thread Tolerance: 6g class (ISO metric), 2A class (ANSI unified)

Quality Assurance:

100% Dimensional Inspection: Precision measurement of head diameter, height, socket size, and thread parameters
Salt Spray Test: 48+ hours (ASTM B117) - excellent corrosion resistance verification
Torque Testing: Drive socket integrity and torque transmission capacity verified
Tensile Strength Testing: Pull-out and shear strength tested per ISO/ANSI standards
Thread Gauge Verification: GO/NO-GO gauges ensure accurate thread dimensions
Socket Depth Inspection: Hex socket depth and tolerance verified for proper tool engagement
Head Profile Verification: Button head radius and height measured for consistency
Surface Finish Inspection: Visual and tactile inspection for smooth, defect-free finish
ISO 9001:2015 Certified: Manufacturing facility with documented quality management system
RoHS Compliant: Lead-free brass available for environmental compliance
REACH Compliant: European chemical regulation compliance
Material Test Certificates (MTC): Chemical composition and mechanical properties documented
Third-Party Inspection: SGS, BV, Intertek, TUV inspection accepted

Material Properties:

Tensile Strength: 300-450 MPa (43,500-65,300 psi)
Yield Strength: 120-250 MPa (17,400-36,300 psi)
Hardness: 80-120 HV (Vickers), 75-110 HRB (Rockwell B)
Elongation: 15-30% (ductility)
Density: 8.4-8.7 g/cm (0.304-0.314 lb/in)
Melting Point: 900-940C (1652-1724F)
Thermal Conductivity: 120 W/mK (excellent heat dissipation)
Electrical Conductivity: 28% IACS (International Annealed Copper Standard)
Coefficient of Thermal Expansion: 20.5 10/K
Corrosion Resistance: Excellent in marine, humid, and outdoor environments
Magnetic Properties: Non-magnetic (suitable for electronic applications)

Surface Finish Options:

Natural Brass (Polished): Standard golden finish with bright, reflective surface
Lacquered Brass: Anti-tarnish clear coating preserves shine and prevents oxidation
Nickel Plated: Silver appearance with enhanced corrosion resistance
Chrome Plated: Bright chrome finish for decorative and high-wear applications
Antique Brass: Aged/oxidized finish for vintage or rustic aesthetic
Black Oxide: Dark finish for contrast or stealth applications
Zinc Plated: Additional corrosion protection with silver-gray appearance
Custom Finishes: Consult for special color or coating requirements

Installation Guidelines:

Pilot Hole: Drill pilot hole slightly smaller than screw diameter (approximately 85-90% of major diameter)
Clearance Hole: For through-hole applications, drill clearance hole slightly larger than shaft diameter
Hex Key Selection: Use correct size hex key (Allen key) that fits socket snugly without play
Alignment: Ensure screw is perpendicular to surface for proper thread engagement
Tightening: Apply steady, even pressure - avoid over-tightening which can strip threads or damage material
Torque: Follow recommended torque values (see table below) for optimal clamping force
Thread Engagement: Minimum thread engagement should be 1.5 diameter for steel, 2 diameter for softer materials
Lubrication: For high-torque applications, light lubrication on threads can prevent galling

Recommended Torque Values:

Size	Torque (Nm)	Torque (lb-in)
M2	0.08-0.12	0.7-1.1
M2.5	0.15-0.22	1.3-1.9
M3	0.25-0.35	2.2-3.1
M4	0.50-0.70	4.4-6.2
M5	1.0-1.4	8.9-12.4
M6	1.8-2.5	15.9-22.1
M8	4.0-5.5	35.4-48.7
M10	8.0-11.0	70.8-97.4

Lead Time:

Standard Sizes (In Stock): 3-7 working days after payment confirmation
Standard Sizes (Production): 12-18 working days from order confirmation
Custom Sizes/Finishes: 25-40 working days depending on quantity and specifications
Rush Orders: Expedited production available (additional charges apply, 7-10 days possible)
Sample Orders: 2-5 working days for stock items

Export Markets: We successfully export brass button head socket cap screws to 70+ countries worldwide:

North America:

USA, Canada, Mexico

Europe:

UK, Germany, France, Italy, Spain, Netherlands, Belgium, Switzerland, Austria, Poland, Czech Republic, Sweden, Norway, Denmark, Finland, Ireland, Portugal, Greece

Middle East:

UAE (Dubai, Abu Dhabi), Saudi Arabia, Qatar, Kuwait, Oman, Bahrain, Jordan, Lebanon, Israel

Asia Pacific:

Australia, New Zealand, Singapore, Malaysia, Japan, South Korea, Thailand, Vietnam, Philippines, Indonesia, Taiwan, Hong Kong

South America:

Brazil, Argentina, Chile, Colombia, Peru, Ecuador, Uruguay

Africa:

South Africa, Egypt, Kenya, Nigeria, Morocco, Ghana, Tanzania

Why Choose Our Brass Button Head Socket Cap Screws?

Manufacturing Excellence:

45+ Years Experience: Specialized in precision brass fastener manufacturing since 2008
Advanced Equipment: State-of-the-art CNC cold heading machines, thread rolling equipment, and automated inspection systems
Quality Control: Multi-stage inspection process from raw material to finished product
In-House Laboratory: Fully equipped testing facility for dimensional, mechanical, and corrosion testing
Engineering Support: Experienced technical team for application consultation and custom solutions
Production Capacity: 50+ million pieces per month with scalable capacity for large orders

Competitive Advantages:

Factory Direct Pricing: No middlemen or distributors - best value for your investment
Consistent Quality: Automated production ensures uniformity across all batches
Fast Turnaround: Efficient production scheduling and logistics for on-time delivery
Flexible MOQ: Accommodating minimum order quantities for trial orders and new customers
Custom Capabilities: Full OEM/ODM services for special sizes, finishes, and packaging
Large Inventory: Stock of popular sizes for immediate shipment
Export Expertise: Experienced documentation and shipping team for smooth international transactions
Long-Term Partnership: Dedicated account managers and after-sales support

Value-Added Services:

Free Samples: Quality evaluation samples available (freight charges apply)
Volume Discounts: Tiered pricing for bulk orders - the more you buy, the more you save
Custom Manufacturing: Special sizes, thread types, head styles, and finishes
Technical Documentation: CAD drawings, material certificates, test reports provided
Consolidated Shipping: Combine multiple products to optimize freight costs
Inventory Management: Stock holding programs and scheduled deliveries for regular customers
Just-in-Time Delivery: Coordinated shipments to match your production schedule
After-Sales Support: Technical assistance, problem-solving, and warranty claims
Factory Visits: Welcome to visit our manufacturing facility for quality audits

Free Samples for quality evaluation and testing (freight collect or prepaid)
Competitive Quotations with best pricing for your required quantity
Custom Specifications - OEM/ODM services for special requirements
Technical Data Sheets and material test certificates
Shipping Cost Estimates to your destination
Technical Consultation for your specific application requirements
Product Recommendations based on your industry and use case

Quality Certifications & Compliance:

ISO 9001:2015 - Quality Management System certified
ISO 14001:2015 - Environmental Management System certified
RoHS Compliant - Restriction of Hazardous Substances (lead-free brass available)
REACH Compliant - European Chemical Regulation compliance
Material Test Reports (MTR) - Chemical composition and mechanical properties
Certificate of Conformance (CoC) - Compliance with specified standards
Third-Party Inspection - SGS, BV, Intertek, TUV inspection accepted
Conflict-Free Materials - Responsible sourcing certification
FDA Compliant Brass - Available for food contact applications

Technical Support: Our experienced engineering team provides comprehensive support:

Application Consultation: Help selecting the right size, material, and finish for your specific application
Custom Design Services: Engineering support for special requirements and prototyping
Installation Guidance: Best practices for installation, torque specifications, and assembly guidelines
Material Compatibility: Advice on substrate materials and thread engagement requirements
Corrosion Resistance Data: Environmental testing data for specific exposure conditions
Load Calculations: Assistance with clamping force and shear/tensile load requirements
Problem Solving: Technical troubleshooting for installation or performance issues
Standards Interpretation: Guidance on ISO, DIN, ANSI, and other international standards

Frequently Asked Questions (FAQ):

Q1: What's the difference between button head and standard socket head cap screws? A: Button head screws have a lower profile (approximately 60% height) and wider head diameter (approximately 200% shaft diameter) compared to standard socket head cap screws. This provides a larger bearing surface, smoother appearance, and reduced snagging hazard.

Q2: Can button head screws handle the same loads as standard socket head cap screws? A: While button head screws have lower profile, the wider head diameter provides excellent bearing surface. They are suitable for most applications, but for maximum tensile strength in critical structural applications, standard socket head cap screws may be preferred.

Q3: Are these screws suitable for outdoor/marine applications? A: Yes, brass has excellent natural corrosion resistance. For harsh marine or coastal environments, we recommend lacquered or nickel-plated finish for additional protection against salt spray and oxidation.

Q4: Do you offer lead-free brass for drinking water or food contact applications? A: Yes, we can supply lead-free brass (CuZn with <0.25% lead content) compliant with NSF/ANSI 61, California AB1953, and EU regulations for potable water and food contact applications.

Q5: What hex key size do I need for each screw size? A: Hex key sizes are standardized:

M2/M2.5: 1.5mm hex
M3: 2mm or 2.5mm hex
M4: 3mm hex
M5: 4mm hex
M6: 5mm hex
M8: 6mm hex
M10: 8mm hex

Q6: Can you manufacture custom lengths or diameters not listed? A: Yes, we offer full OEM/ODM custom manufacturing services. Minimum order quantities apply for non-standard specifications (typically 10,000-25,000 pcs depending on complexity).

Q7: What's your typical defect rate? A: Our defect rate is less than 0.1% (100 PPM - parts per million) due to strict quality control, automated inspection, and 100% dimensional verification processes.

Q8: Do you provide material certificates and test reports? A: Yes, we provide Material Test Reports (MTR), Certificates of Conformance (CoC), dimensional inspection reports, and salt spray test results upon request at no additional charge.

Q9: Can I get samples before placing a bulk order? A: Yes, we provide free samples for quality evaluation (customer pays freight charges). Sample orders of 50-100 pieces are also available at regular unit pricing.

Q10: What's the shelf life of brass screws? A: Brass screws have indefinite shelf life when stored properly in dry conditions. Lacquered finishes prevent tarnishing during long-term storage.

Comparison: Button Head vs. Other Socket Head Styles

Feature	Button Head	Standard Socket Head	Flat Head (Countersunk)	Low Head
Profile Height	Low (0.6 D)	High (1.0 D)	Flush (0 surface)	Very Low (0.5 D)
Head Diameter	Wide (2.0 D)	Standard (1.5 D)	Wide (2.0 D)	Standard (1.5 D)
Bearing Surface	Excellent	Good	Excellent	Good
Appearance	Smooth, rounded	Industrial	Flush, hidden	Minimal
Snagging Risk	Very Low	Moderate	None (flush)	Low
Torque Capacity	Good	Excellent	Good	Moderate
Best For	Decorative, safety	Structural, high-load	Flush mounting	Space-constrained