Tee and Strap Hinges - Specification

Scope of IS 206: Specification for Hinges

• Covers dimensions, tolerances, and specifications for various types of hinges (tee and strap hinges).
• Applies to materials like mild steel wire, carbon steel sheets, and wood screws as referenced in related IS codes (IS 280, IS 1079, IS 6760).
• Ensures conformity by specifying dimensions and tolerances (see Tables 2 to 12 with Figures 1 & 2).
• Final test values are rounded per IS 2:1960 rules.

Key Table: Dimensions of Heavy Weight Tee Hinges (Type 3) [Excerpt]

Notes:

• Dimensions A to R define hinge size and hole placement.
• Countersunk head wood screws size must match hinge hole sizes.
• Tolerances ensure interchangeability and fit.

For detailed hinge types and all dimensions, refer to Tables 2-12 and Figures 1 & 2 in IS 206.

IS 206 Key References, Tables & Specifications Summary

1. Referenced Standards (Table 2)

• IS 280:2006 — Mild steel wire for general engineering.
• IS 1079:1994 — Hot rolled carbon steel sheets and strips.
• IS 6760:1972 — Slotted countersunk head wood screws.

2. Dimensions of Heavy Weight Tee Hinges (Type 3) — Table Extract

3. Dimensions of Light Weight Tee Hinges (Type 2) — Table Extract

| Size (mm) | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | F (mm) | G (mm) | R (mm) |

IS 206: Types and Classifications of Hinges

1. Types of Tee Hinges (Clause 3.1)

2. Types of Strap Hinges (Clause 3.2)

3. Material Specifications (Table 1)

4. Key Dimensions for Light Weight Tee Hinges (Type 2) (Table 3)

| Size (mm) | A (±2) | B (±1) | C (±1.5) | D (±0.05) | E (±0.10) | F (±2) | G (±1) | R (±1) | Screw Size | Holes in Strap | Holes in Tee | Min X | Min Y | |-----------|

IS 206 - Materials for Tee and Strap Hinges

Key Material Specifications (Table 1)

• Mild steel sheet must comply with IS 1079 Grade 0.
• Mild steel wire must be at least 1/4 hard as per IS 280.

Dimensions & Tolerances for Light Weight Tee Hinges (Type 2) (Excerpt from Table 3)

IS 206 - Dimensions and Tolerances for Tee Hinges

Clause 5.1 specifies that dimensions and tolerances for various types of tee and strap hinges must conform to Tables 2 to 12 with Fig. 1 and Fig. 2.

Key Tables for Tee Hinges Dimensions (Examples):

1. Heavy Weight Tee Hinges (Type 3) - Table 8

2. Light Weight Tee Hinges (Type 2) - Table 3

IS 206: Manufacturing Requirements — Key Specifications & Tables

IS 206 specifies manufacturing dimensions and tolerances for various types of Tee Hinges, including light and medium weight hinges (Type 1 & 2). Key points:

Material References:

• IS 280: 2006 — Mild steel wire for engineering.
• IS 1079: 1994 — Hot rolled carbon steel sheets.
• IS 6760: 1972 — Slotted countersunk head wood screws.

Key Tables for Tee Hinges Dimensions (mm)

IS 206: Finish - Key Specifications & Tables

The code primarily references dimensions and tolerances for hinges rather than finish details. However, from the provided context:

Key Points on Finish (Implied)

• Finish quality should conform to dimensional tolerances as per Tables 2 to 12.
• Tolerances on hinge dimensions (A to R) are strictly defined to ensure fit and function.
• Surface finish is indirectly controlled by adherence to these dimensional standards and material specs (e.g., mild steel wire IS 280:2006).

Table Extract: Heavy Weight Tee Hinges (Type 3) Dimensions (mm)

Notes:

• Dimension F is critical for straight cut medium weight tee hinges.
• Dimensions R, X, Y are reference only and customizable.
• Finish quality depends on material specs (IS 280, IS 1079) and manufacturing tolerances.

Summary:

• Follow dimensional tolerances strictly for finish acceptability.
• Use specified wood screws and hole counts for proper assembly.
• Material standards referenced ensure surface and mechanical finish quality.

flowchart LR
    A[Material Spec: IS 280, IS 1079] --> B[Manufacturing Process]

IS 206 Packaging Specifications for Hinges

Packaging Quantities (Clause 8.1)

• Size ≤ 125 mm: Pack 20 pieces per package (125 mm box)
• Size ≥ 150 mm: Pack 10 pieces per package
• Hinges may be packed in multiples of 6 if purchaser requires.

Labeling Requirements (Clause 8.2)

Each package must be labeled with:

• Type of hinge
• Size of hinge
• Quantity of hinges
• Manufacturer's name or trademark

Key Tables: Dimensions & Screws for Tee Hinges

Refer to IS 206 Table 3 & 5 for full size range and exact dimensions.

Summary Diagram of Packaging Process

flowchart TD
    A[Hinges Manufactured] --> B[Count Hinges by Size]
    B --> C{Size ≤ 125 mm?}
    C -- Yes --> D[Pack 20 Hinges per 125 mm Box]
    C -- No --> E[Pack 10 Hinges per Package]
    D & E --> F[Label Package with Type, Size, Quantity, Manufacturer]
    F --> G[Ready for Dispatch]

Use these packaging rules and tables to ensure compliance with IS 206 for hinge supply and certification.

IS 206: Sampling and Criterion for Conformity (Annex A, Clause 9)

• Lot Definition: Hinges of the same type, size, material, and manufacture time form one lot.

• Labelling (Clause 8.2): Each package must show:

  • Type of hinge
  • Size of hinge
  • Quantity
  • Manufacturer or trade-mark

• Sample Size (Clause 2.2 / A-2.2):

  • Randomly select hinges from at least 10% of packages, with a minimum of 3 packages.
  • Equal number of hinges from each selected package.

• Conformity Criterion:

  • Testing results are rounded per IS 2:1960 rules.
  • The number of significant figures in the test result matches the specified value.

Summary Table for Sampling

This ensures statistically valid acceptance or rejection of hinge lots.

flowchart TD
    A[Lot: Hinges of same type, size, material] --> B[Select ≥10% packages (min 3)]
    B --> C[Randomly select hinges from each package]
    C --> D[Test hinges and record results]
    D --> E[Round results as per IS 2:1960]
    E --> F[Decide conformity based on Annex A criteria]

IS 206 - Marking: Key Tables & Specifications

Clause 5.1 specifies dimensions and marking details for Tee Hinges (Types 1, 2, 3) with BIS certification marking.

Key Tables Summary:

Important Dimensions (Example for Medium Weight Type 2, 150 mm size):

Notes:

• Countersunk wood screws are specified by size (e.g., #6, #8, #12, #14).
• Number of holes varies with hinge size/type.
• Minimum X and Y are mounting clearance dimensions.

This ensures standardized marking and dimensions for hinge manufacturing and certification per IS 206.

IS 206: Sampling and Criterion for Conformity for Tee and Strap Hinges

Key Points from Clause 9 & Annex A

• Lot Definition: Hinges of the same type, size, material, and manufacturing batch form one lot.
• Labelling (Clause 8.2): Each package must show:
  • Type of hinge
  • Size of hinge
  • Quantity
  • Manufacturer/trade-mark

Sampling Details (Clause 2.2, A-2.2)

• Sample Size:
  • Randomly select hinges from at least 10% of packages,
  • Minimum of 3 packages must be sampled,
  • Equal number of hinges from each selected package.

Criterion for Conformity (Annex A)

• The scale of sampling and acceptance criteria are specified in Annex A (not fully detailed here, but typically follow standard acceptance sampling plans).
• Rounding off: Final test values must be rounded as per IS 2:1960 rules, maintaining the same significant figures as the specified values.

Summary Table: Sampling Size

This ensures representative testing and quality control of hinges per IS 206 standards.

Committee Composition - IS 206 (Builder's Hardware Sectional Committee, CED 15)

Key Points from Annex B:

• The Committee comprises representatives from various organizations including:

  • Allied Anodisers, Kolkata
  • Builders Association of India, Jamshedpur
  • Central Building Research Institute, Roorkee
  • Central Public Works Department, New Delhi
  • Construction Industries Development Council, New Delhi
  • Delhi Development Authority, New Delhi
  • Godrej & Boyce Manufacturing Co Ltd, Mumbai
  • Hindalco Industries Limited
  • Indian Aluminium Company Limited
  • Indian Institute of Architects
  • Ministry of Railways
  • National Test House, Kolkata
  • National Thermal Power Corporation Limited
  • BIS Directorate General (Ex-officio)
  • And others, with Chairman SHRI B. MAJUMDAR and Member Secretary SHRI J. ROY CHOWDHURY.

• Each organization has a primary and alternate representative.

Sampling & Conformity Criteria (Table 13)

• A lot is conforming if defective hinges ≤ permissible number.

Dimensions of Heavy Weight Tee Hinges (Type 3) - Table 8 (mm)