Precision Engineered Aluminium Screws for Demanding Industrial Applications

We are one of the leading manufacturers and exporters of high-performance Aluminium Screws from India. We have been supplying reliable and lightweight precision fastening solutions to the global market for over three decades. Our comprehensive range of aluminium fasteners is engineered to meet the rigorous demands of industries where a combination of low weight, excellent corrosion resistance, and good mechanical strength is paramount. Utilizing advanced cold forging and CNC machining processes from high-grade aluminum alloys, we guarantee products that deliver exceptional performance in aerospace, automotive, electronics, and marine environments. Our commitment extends beyond manufacturing to providing unparalleled technical support for fastener selection and customized packaging solutions, ensuring a seamless and efficient supply chain for our international clientele.

Comprehensive Technical Overview of Aluminium Screws

Aluminium Screws represent a critical category of fasteners chosen for their unique material properties, primarily their high strength-to-weight ratio and inherent resistance to corrosion. Unlike standard steel fasteners, screws manufactured from specialized aluminum alloys such as 6061 and 7075 offer a non-magnetic and highly conductive alternative, making them indispensable in sensitive applications like electronics enclosures and aerospace assemblies. The manufacturing of these screws requires precise control over grain flow and thread forming to ensure they can withstand shear and tensile loads without succumbing to failure. Our product line includes a full spectrum of types, including socket head cap screws, machine screws, self-tapping screws, and shoulder screws, all available in a variety of plating and anodizing finishes to enhance surface hardness and environmental resistance.

Material Grades and International Standards

We produce our screws using certified aluminum alloys that conform to a wide array of international specifications to meet diverse application requirements.

Advanced Manufacturing Processes and Machinery

The production of our precision aluminium screws involves a multi-stage process to ensure dimensional accuracy and mechanical integrity. The initial forming is achieved through high-speed multi-station cold forging machines, which create the screw blank with optimized grain structure for enhanced strength. Thread rolling is performed using precision cylindrical thread rollers to form accurate and strong threads without cutting away material grain lines. For specialized or low-volume orders, we utilize Swiss-type CNC automatic lathes to machine screws from bar stock, allowing for complex geometries like shoulder screws and custom head designs. A critical part of our process is the application of surface treatments, followed by a 100% dimensional inspection and sample-based mechanical testing to verify properties like tensile strength and hardness.

Typical Applications and Industries Served

Our lightweight aluminium fasteners are critical components in a multitude of advanced industries:

• Aerospace: For interior panels, avionics mounting, and non-critical structural assemblies where weight savings are crucial.

• Automotive and Racing: In engine components, intake systems, and bodywork to reduce unsprung mass and improve performance.

• Electronics and Telecommunications: For assembling heat sinks, server racks, and device enclosures where non-magnetic and conductive screws are required.

• Marine and Offshore: Throughout boat fittings, deck hardware, and instrumentation, leveraging their exceptional saltwater corrosion resistance.

• Medical Equipment: In imaging devices and portable medical apparatus due to their non-magnetic nature and compatibility with cleanroom environments.

Dimensional Data and Technical Specifications

We maintain a vast inventory of standard metric and imperial sizes while specializing in custom screw manufacturing. The table below outlines our standard range for metric socket head cap screws.

(Insert Infographic Image Here: A detailed diagram of a standard socket head cap screw, labeling the head diameter, head height, socket drive, shank length, thread length, and major diameter.)

Standard Size Chart for Aluminium Socket Head Cap Screws (Metric)

Note: Custom threads, including unified (UNC/UNF) and special pitches, along with non-standard lengths and head styles, can be engineered upon request.

Surface Finishing and Coating Options

To meet specific environmental and functional challenges, we offer a variety of surface finishes and protective coatings.

• Anodizing: Clear, Black, or Color Sulfuric Acid Anodizing per MIL-A-8625, Type II or III (Hardcoat), significantly improving surface hardness and corrosion resistance while providing electrical insulation.

• Chromate Conversion Coating: (Alodine/Iridite) per MIL-DTL-5541, providing a good base for paint and offering moderate corrosion resistance with electrical conductivity.

• PTFE (Teflon) Coating: A dry-lubricant coating that reduces friction, prevents galling, and provides a limited degree of chemical resistance.

• Powder Coating: A thick, decorative, and protective polymer coating available in a wide range of RAL colors for aesthetic applications.

Precision Tolerances and Production Lead Time

Our standard manufacturing tolerances for thread fit are 6g for metric screws per ISO 965-2, with head and shank dimensions held to ISO 2768-mK standards. For custom engineered screws, even tighter tolerances can be achieved. Our standard lead time for production is 4 to 6 weeks from the receipt of order and finalized technical specifications. We offer flexibility in production time for rush orders and maintain a stock of common standard sizes for immediate dispatch.

Why Choose Jamnagar Brass Components for Your Fastener Needs?

Selecting us as your aluminium screw manufacturer ensures you receive a product backed by deep expertise and a customer-centric approach.

• Three Decades of Manufacturing Excellence: Our 30-year legacy has provided us with unparalleled expertise in metallurgy and fastener engineering for global markets.

• Unmatched Customization Capability: Our core strength is our ability to customize. Our engineering team can suggest technical drawing changes for design for manufacturability (DFM), optimizing your part for performance and cost.

• Proven Supply Chain Flexibility: We understand the dynamic nature of modern industry and offer flexibility in production time and order quantities to align with your project cycles.

• Superior Customer and Technical Support: We pride ourselves on good communication skills, providing dedicated support from our sales and engineering teams to ensure all your technical queries are resolved.

• Global Export and Packaging Expertise: As experienced exporters, we handle all logistics and provide customized packaging with customer labels and logos, ensuring products are delivered efficiently and identified easily.

Packaging and Shipping

We employ robust, multi-layer packaging protocols to prevent damage and corrosion during transit. Screws are typically bagged, boxed in corrugated cartons, and palletized for sea or air freight. We gladly accommodate customized packaging with customer labels/logo to support your inventory management systems and branding requirements.

Frequently Asked Questions (FAQ)

Q1: What are the main advantages of using aluminium screws over steel?
The primary advantages are their lightweight properties, excellent corrosion resistance without needing plating, non-magnetic characteristics, and good electrical and thermal conductivity, making them ideal for weight-sensitive and corrosive environments.

Q2: How does anodizing improve the performance of an aluminium screw?
Anodizing creates a hard, ceramic-like oxide layer on the surface, dramatically increasing abrasion resistance and corrosion protection. It also allows for color coding and provides electrical insulation.

Q3: Can aluminium screws be used in high-strength applications?
Yes, when manufactured from high-strength alloys like Aluminium 7075-T6, these screws can achieve tensile strengths comparable to some grades of steel, making them suitable for high-stress aerospace and automotive applications.

Q4: What is galling and how is it prevented in aluminium threads?
Galling is a form of adhesive wear where material from one thread surface transfers to another, potentially seizing the connection. It is prevented by using anti-galling coatings like PTFE, ensuring proper lubrication, and avoiding over-torquing.

Q5: Do you provide material certification for your screws?
Yes, we provide Material Test Certificates (MTC) as standard for all raw materials, and can supply first-article inspection reports and certificates of conformity upon request.

Glossary of Technical Terms

• Cold Forging: A metal forming process performed at room temperature that creates the screw blank under high pressure, resulting in superior grain flow and strength compared to machining.

• Tensile Strength: The maximum stress a material can withstand while being stretched or pulled before failing, a key performance metric for fasteners.

• Anodizing: An electrochemical process that thickens the natural oxide layer on aluminium, enhancing corrosion and wear resistance.

• Galling: A form of wear caused by adhesion between sliding surfaces, a common concern with aluminium and stainless steel fasteners.

• Socket Head: A screw head with an internal, hex-shaped drive, allowing for high torque application and a low-profile design.

Contact Us for a Quote or Technical Data Sheet

Leverage our three decades of expertise for your critical fastening requirements. Contact us for a competitive quote, detailed technical data sheets, or to consult with our engineering team.

Jamnagar Brass Components
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, India – 361004
Phone: +91-22-43449300 / +91-22-43449323
Email: sales@jambrass.com
Contact Person: Mr. Mehul Vora