Tinned Brass Line Taps – Split Bolt Connectors
Tinned Brass Line Taps (Split Bolt Connectors) are high-conductivity electrical connectors used for joining, tapping, and branching conductors in power distribution and grounding systems. We are one of the leading manufacturers and exporters of Tinned Brass Line Taps from India. We have been supplying Brass Electrical Connectors and Split Bolt Connectors to the world market for many decades. Manufactured using high-grade Brass and electro-tinned for superior corrosion resistance, our Split Bolt Line Taps provide strong mechanical grip, low contact resistance, and long service life in demanding industrial environments. These connectors are widely used in Overhead Line Installations, Earthing Systems, Transformer Yards, Distribution Networks, and Industrial Electrical Projects worldwide.
Overview – Tinned Brass Split Bolt Connectors
Tinned Brass Line Taps, commonly known as Split Bolt Connectors, are designed to join Copper or Aluminium conductors securely. The split bolt mechanism allows multiple conductors to be clamped together with high mechanical strength and excellent electrical conductivity.
Key Functional Benefits:
High electrical conductivity
Strong mechanical clamping force
Corrosion-resistant tinned surface
Suitable for grounding and line tapping
Reusable and easy to install
Compatible with Copper conductors
The electro-tinned coating enhances oxidation resistance and improves long-term performance in outdoor and high-humidity environments.
Material Grades & International Standards
Our Tinned Brass Line Taps are manufactured using premium-grade Brass and conform to international quality standards.
Material Grades
| Component | Material | Equivalent Standards |
|---|---|---|
| Body | Brass IS 319 Type 1 | India |
| Equivalent | CW614N | EN (Europe) |
| Equivalent | ASTM B16 | USA |
| Equivalent | JIS H3250 | Japan |
| Equivalent | GB H59 | China |
| Finish | Electro-Tinned | RoHS Compliant |
Applicable Standards
| Standard | Description |
|---|---|
| UL 486A-486B | Wire Connectors |
| IEC 61238 | Compression & Mechanical Connectors |
| IS 5561 | Electrical Connectors |
| RoHS | Environmental Compliance |
Physical & Electrical Properties
| Property | Typical Value |
|---|---|
| Electrical Conductivity | Excellent |
| Tensile Strength | 300–550 MPa |
| Corrosion Resistance | High (Tinned Surface) |
| Operating Temperature | -20°C to +150°C |
| Contact Resistance | Low |
| Plating Thickness | 8–15 Microns (Tin) |
The Tin plating enhances conductivity at contact surfaces and prevents surface oxidation.
Construction & Working Principle
The Split Bolt Connector consists of:
Brass Body (Split Thread Design)
Threaded Bolt
Hex Head for Tightening
Size & Conductor Range Chart
| Size | Conductor Range (mm²) | Bolt Size | Typical Application |
|---|---|---|---|
| Small | 2.5 – 10 mm² | M6 | Control Panels |
| Medium | 10 – 35 mm² | M8 | Distribution Boards |
| Large | 35 – 70 mm² | M10 | Power Systems |
| Extra Large | 70 – 120 mm² | M12 | Transformer Earthing |
| Heavy Duty | 120 – 240 mm² | M16 | Industrial Substations |
(Custom conductor ranges available)
Manufacturing Process & Machinery Used
Our Tinned Brass Split Bolt Connectors are manufactured in India using advanced machining and plating facilities.
Manufacturing Steps:
Brass Rod Cutting
CNC Turning & Threading
Slot Cutting
Thread Rolling
Deburring
Electro-Tinning Process
Quality Inspection
Machinery Used:
CNC Automatic Lathes
Thread Rolling Machines
Milling Machines
Electroplating Units
Torque Testing Equipment
Digital Vernier & Gauges
Each batch undergoes:
Thread Accuracy Testing
Torque Testing
Conductivity Testing
Surface Finish Inspection
Salt Spray Corrosion Test
Turnaround Time: 4–6 Weeks
Performance Metrics
| Parameter | Performance |
|---|---|
| Current Carrying Capacity | As per conductor size |
| Torque Strength | High Mechanical Grip |
| Corrosion Resistance | 96–500 Hours Salt Spray |
| Vibration Resistance | Suitable for Outdoor Use |
| Reusability | Yes |
Applications & Industries
Tinned Brass Line Taps (Split Bolt Connectors) are widely used in:
Overhead Transmission Lines
Grounding & Earthing Systems
Transformer Installations
Electrical Substations
Railway Electrification
Solar Power Plants
Wind Energy Projects
Industrial Power Distribution
Telecom Tower Grounding
They are commonly installed with:
Brass Earthing Terminals
Brass Neutral Links
Brass Busbars
Brass Cable Glands
Copper Conductors
Tolerances & Quality Control
| Parameter | Specification |
|---|---|
| Dimensional Tolerance | ±0.05 mm |
| Thread Standard | ISO Metric |
| Plating Thickness | 8–15 Microns |
| Surface Finish | Smooth & Burr-Free |
| Material Certification | Available |
All products are RoHS compliant and manufactured under strict quality control standards.
Packaging & Global Export
Individual Polybag Packing
Bulk Industrial Packaging
Custom Branding & Labeling
Export-Grade Corrugated Boxes
Palletized Shipments
We export globally to USA, UK, Europe, Middle East, Africa, and Southeast Asia.
Why Choose Our Tinned Brass Line Taps?
With over three decades of global export experience, we offer:
High conductivity Brass material
Precision CNC manufacturing
Superior Tin plating quality
Competitive export pricing
Custom conductor sizes
Flexible production capacity
Strong technical communication
Reliable 4–6 week delivery
Our commitment to quality, customization, and global supply reliability makes us a trusted manufacturer of Split Bolt Connectors.
Frequently Asked Questions (FAQ)
What is a Split Bolt Connector used for?
It joins or taps electrical conductors securely.Are these suitable for outdoor applications?
Yes, especially with Tin plating.Can they connect Aluminium conductors?
Primarily designed for Copper; special versions available.What plating is used?
Electro-Tinned finish.Are they reusable?
Yes.What conductor sizes are supported?
From 2.5 mm² up to 240 mm².What is the production lead time?
4–6 weeks.Do you export internationally?
Yes.Are test certificates available?
Yes.Can you supply custom designs?
Yes.
Glossary of Technical Terms
Split Bolt Connector – Mechanical connector used to join conductors.
Line Tap – Connector used to branch off a main conductor.
Tin Plating – Coating applied to prevent corrosion.
Contact Resistance – Resistance at conductor connection point.
Torque – Rotational force applied during tightening.
Related Parts
Brass Earthing Terminals
Brass Neutral Links
Brass Busbars
Brass Cable Glands
Brass Earthing Tags
Stainless Steel Cable Glands
Call To Action
Request a quote today.
Email: sales@cableglandsindia.com
Phone / WhatsApp: +91-22-43449300
Website: www.cableglandsindia.com
Share your project specifications, required quantities, and preferred delivery timeline — and we’ll respond with a detailed quotation within one business day.