Product Overview

stainless steel sheets

Bombay Metal Corporation is a leading manufacturer, supplier, exporter, and stockist of Stainless Steel Railing Fittings in IC (Investment Cast), TC (Tube Clamp / Tube Connector), and Dairy finishes, serving customers across India and global markets. Our railing fittings are precision-engineered to meet the highest standards of strength, aesthetics, and corrosion resistance, making them an ideal choice for architectural, commercial, industrial, and food-grade installations.

Manufactured from premium-grade stainless steel, our IC/TC/Dairy railing fittings deliver exceptional surface finish, dimensional accuracy, and long service life. Whether you need a sleek glass staircase railing for a luxury residential project or hygienic tube fittings for a dairy processing plant, we offer the complete range under one roof.

Available in grades 304, 304L, 316, and 316L, these fittings comply with major international standards including ASTM, DIN, and BS specifications. We maintain ready stock for prompt dispatch and also accept customised orders for non-standard sizes and finishes.

Available Product Grades & Their Details

Our Stainless Steel Railing Fittings range is available in Grade 304, 304L, 316, and 316L. The table below summarises the key metallurgical distinctions before we detail each sub-product:

 

Grade

C %

Cr %

Ni %

Mo %

Key Characteristic

SS 304

≤ 0.08

18–20

8–10.5

–

General-purpose; excellent corrosion resistance

SS 304L

≤ 0.03

18–20

8–12

–

Low carbon; superior weld-zone corrosion resistance

SS 316

≤ 0.08

16–18

10–14

2–3

Molybdenum-added; ideal for marine & chemical exposure

SS 316L

≤ 0.03

16–18

10–14

2–3

Low carbon + Mo; best for dairy & food-grade use

Sub-Product Details with Applications & Uses

1. Stainless Steel Railing Fittings – Square Base

Square Base fittings provide a flat, stable mounting platform for handrail posts on floors, stairs, and platforms. Manufactured by investment casting, they feature a polished or satin finish and are drilled for anchor bolt fixing. Available in 304 and 316 grades with base sizes from 60 × 60 mm to 100 × 100 mm, they are suitable for both indoor and outdoor environments.

Applications: Entrance lobbies, staircases, balconies, swimming pool decks, commercial malls, and exterior walkways.

 

2. Stainless Steel Railing Fittings – Dome Nuts

Dome Nuts (acorn nuts) are used to cap exposed bolt ends on railing assemblies, providing a clean, finished appearance while protecting threads from corrosion. They are precision-machined from hex bar stock in grades 304 and 316. Standard thread sizes range from M6 to M16, and they are available in mirror and satin finishes.

Applications: Glass railing systems, post-fixing applications, balustrade assemblies, handrail end caps, and decorative bolt coverings on architectural metalwork.

 

3. Stainless Steel Railing Fittings – Ball Base

Ball Base fittings combine an investment-cast spherical accent with a flat mounting plate, adding an elegant design element to railing posts. The ball component is polished to a mirror finish and welded or integrally cast with the base plate. Available in grades 304 and 316, with base diameters from 60 mm to 80 mm and ball diameters of 40 mm to 60 mm.

Applications: High-end residential staircases, hotel lobbies, showroom interiors, boutique retail spaces, and architectural feature railings.

 

4. Stainless Steel Railing Fittings – Spigot

Spigots are precision-cast point-fix fittings that clamp glass panels directly to structural members without framing, creating a minimal-look frameless glass railing system. They are available as adjustable or fixed types with rotation angles up to 180°. Grade 316 is standard for outdoor use; Grade 304 suits interior installations. Spigot diameters range from 40 mm to 65 mm to suit glass thickness of 10 mm to 21.52 mm (laminated).

Applications: Frameless glass pool fencing, terrace glass balustrades, commercial building facades, sea-view balconies, and contemporary staircase glass infill panels.

 

5. Stainless Steel Railing Fittings – Couple Set

Couple Sets (also called coupling connectors or rail joiners) are used to join two lengths of handrail tube end-to-end in a continuous run, maintaining a flush outer surface. They are internally threaded or compression-type and available for round tubes of 38.1 mm, 42.4 mm, and 48.3 mm OD. Supplied in 304 and 316 grades with mirror or satin finish.

Applications: Long handrail runs on corridors, airport and metro station concourses, hospital handrails, shopping centre balustrades, and extended staircase installations.

 

6. Stainless Steel Railing Fittings – Flat Tubes

Flat (rectangular) tubes are used as the horizontal rail infill or as structural sections in modern minimalist railing designs. They offer a contemporary flat-face profile compared to standard round tubes. Available in grades 304 and 316, with cross-sections from 20 × 10 mm to 60 × 30 mm, wall thickness 1.5 mm to 3.0 mm, and standard lengths of 6 m.

Applications: Modern architectural handrails, cable railing systems, commercial storefronts, interior balustrades, and designer staircase infills.

 

7. Stainless Steel Railing Fittings – Square Pipe Base

Square Pipe Base fittings are specifically designed to anchor square hollow section (SHS) railing posts to floor or wall surfaces. They feature a cast or fabricated square collar welded to a flat base plate with bolt-hole patterns. Available in 304 and 316 grades, with collar sizes for 25 × 25 mm to 50 × 50 mm SHS posts.

Applications: Industrial walkways, mezzanine floors, factory safety railings, outdoor staircases, and rooftop parapet fencing.

 

8. Stainless Steel Staircase Railing

Stainless Steel Staircase Railings are complete railing systems designed for stair applications, integrating posts, handrails, glass or horizontal tube infills, and all connecting fittings. We supply systems in IC-cast or tubular construction in grades 304 and 316, with various finish options including mirror (No. 8), satin (No. 4), and brushed. Systems comply with NBC 2016, IS 15000, and IBC code requirements for load-bearing and height specifications.

Applications: Residential villas and apartments, commercial offices, hotels, hospitals, educational institutions, retail malls, metro stations, and public infrastructure projects.

 

9. Stainless Steel Railing Fittings – Hollow Ball

Hollow Balls are decorative investment-cast or spun-formed spheres used as post tops, infill elements, or ornamental accents within railing assemblies. They are available in solid and hollow construction, with diameters of 50 mm, 63 mm, 76 mm, 89 mm, and 102 mm, in mirror and satin finishes. Standard grade is 304; 316 available for coastal and high-humidity environments.

Applications: Decorative balustrades, garden railings, driveway gates, luxury residential staircases, heritage renovation projects, and ornamental fence toppers.

 

Size Charts

Railing Tube Sizes (Round & Square)

Section Type

OD / Size (mm)

Wall Thickness (mm)

Standard Length (m)

Common Grade

Round Tube

25.4 / 31.75 / 38.1

1.2 – 2.0

5.8 / 6.0

304 / 316

Round Tube

42.4 / 48.3 / 50.8

1.5 – 3.0

5.8 / 6.0

304 / 316

Square Tube

25 × 25 / 38 × 38

1.5 – 2.0

6.0

304 / 316

Square Tube

50 × 50

2.0 – 3.0

6.0

304 / 316

Flat Tube

20×10 / 40×20 / 60×30

1.5 – 3.0

6.0

304 / 316

Square Base & Ball Base Fittings Size Chart

Fitting Type

Base Size (mm)

Post Collar Dia (mm)

Height (mm)

Bolt Holes

Grade

Square Base

60 × 60

38 / 42

50

4 × Ø8

304 / 316

Square Base

80 × 80

42 / 48

60

4 × Ø10

304 / 316

Square Base

100 × 100

48 / 50

70

4 × Ø12

304 / 316

Ball Base

60 × 60

38 / 42

90

4 × Ø8

304 / 316

Ball Base

80 × 80

42 / 48

110

4 × Ø10

304 / 316

Sq. Pipe Base

40 × 40

25 / 38

55

4 × Ø8

304 / 316

Sq. Pipe Base

60 × 60

50 × 50

65

4 × Ø10

304 / 316

 

Spigot & Dome Nut Size Chart

Fitting

Diameter / Thread

Suitable Glass Thickness

Adjust Angle

Grade

Spigot – Fixed

40 mm

10–12 mm

–

304 / 316

Spigot – Adjustable

50 mm

12–15 mm

±15°

304 / 316

Spigot – Adjustable

65 mm

17.52–21.52 mm

±15°

316

Dome Nut

M6

–

–

304 / 316

Dome Nut

M8 / M10

–

–

304 / 316

Dome Nut

M12 / M16

–

–

316

Hollow Ball Size Chart

Diameter (mm)

Construction

Wall Thickness (mm)

Finish Options

Grade

50

Hollow Spun

1.5

Mirror / Satin

304

63

Hollow Spun

1.5

Mirror / Satin

304 / 316

76

Hollow / IC Cast

2.0

Mirror / Satin

304 / 316

89

Hollow / IC Cast

2.0

Mirror / Satin

304 / 316

102

IC Cast

3.0

Mirror / Satin

304 / 316

 

Technical Details

Parameter

Details

Material

AISI 304, 304L, 316, 316L Stainless Steel

Manufacturing Process

Investment Casting (IC), Tube Clamping (TC), Dairy / Sanitary Grade Fabrication

Standards

ASTM A276 / A554 / A312; DIN EN 10088; IS 6911; BS 1554

Surface Finish

No. 4 (Satin), No. 8 (Mirror), Electro-polished (Dairy grade), Passivated

Tensile Strength

515 – 620 MPa (Grade 304); 515 – 690 MPa (Grade 316)

Yield Strength

≥ 205 MPa (304); ≥ 205 MPa (316)

Hardness

≤ HRB 92 (Brinell ≤ 201)

Elongation

≥ 40%

Temperature Range

–196 °C to +870 °C continuous service

Density

7.93 g/cm³

Packing

Polythene wrapped, wooden pallets or carton boxes; export-standard packing available

MOQ

As per project requirement; negotiable for bulk orders

Lead Time

Ready stock available; custom orders 15–25 working days

Origin

India (Bangalore)

Applications of Stainless Steel Railing Fittings

The IC/TC/Dairy range of stainless steel railing fittings is engineered for a diverse spectrum of applications across sectors:

 

Industry / Sector

Typical Application

Architecture & Construction

Staircases, balconies, terraces, glass balustrades in residential and commercial buildings

Hospitality

Hotel lobbies, resort corridors, rooftop restaurants, swimming pool fencing

Infrastructure

Metro stations, airports, shopping malls, multiplex cinemas, stadiums

Industrial & Manufacturing

Mezzanine platforms, machinery guarding, walkway handrails, factory safety barriers

Food & Dairy Processing

Hygienic handrails and fittings in dairy plants, food-grade compliant with 316L grade

Healthcare

Hospital handrails, pharmaceutical clean rooms, laboratory safety railings

Marine & Coastal

Boat railings, jetty handrails, coastal resort balustrades – 316 grade preferred

Education

School and university staircases, sports facility stands, campus walkways

Cities We Deliver To

We supply Stainless Steel Railing Fittings across India and export globally. Our key delivery locations include:

 

Region

Cities

South India

Bengaluru, Chennai, Hyderabad, Coimbatore, Visakhapatnam, Thiruvananthapuram

West India

Mumbai, Pune, Navi Mumbai, Ahmedabad, Surat, Vadodara (Baroda), Rajkot

North India

New Delhi, Gurgaon, Faridabad, Chandigarh, Ludhiana, Jaipur, Bhopal, Kanpur

East India

Kolkata, Jamshedpur, Ranchi, Bhubaneswar

Central India

Nagpur, Indore, Raipur

West India

Pimpri-Chinchwad, Haryana

Export

Jakarta (Indonesia), Dammam (Saudi Arabia), Brisbane (Australia), GCC countries

People Also Search For

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