Non-ferrous metal sliding door bolts (drops) with padlocks -Specification
1993 Edition

Overview of the Specification Scope for Non-ferrous Sliding Door Bolts

Scope (Section 2.1)

• Pertains to sliding door bolts fabricated from aluminium alloys and brass.
• Materials must comply with associated Indian Standards (see Annex A), such as:
  • Aluminium sheets per IS 737:1987 (H2 temper)
  • Aluminium bars/rods as per IS 733:1983
  • Brass sheets according to IS 410:1977 (HD Grade CuZn40)
  • Brass castings conforming to IS 292:1983 (LCB2)
  • Brass extruded profiles per IS 319:1985 (Type 1)

Summary of Material Standards and Dimensions

Dimensional Examples for Brass Bolts (Table 2)

Permissible deviations: ±2 mm for A, B; ±1 mm for C, E, F, H; ±0.5 mm for diameter D.

Sampling and Quality Compliance (Section 11.1)

• Sampling and acceptance criteria detailed in Annex B.

Diagram: Material to Component Allocation

graph LR
  AluminiumAlloy -->|Sheets| ClipsStaples
  AluminiumAlloy -->|Rods| Bolts
  Brass -->|Sheets| BoltsClips
  Brass -->|Castings| BoltBodies
  Brass -->|Extruded| BoltPins

Indian Standards Referenced by the Specification (Section 2.1 & Annex A)

IS 2681 references multiple essential Indian Standards governing the materials and hardware components for non-ferrous sliding door bolts:

Material Specifications Summary (Table 1, Section 5.1)

• Aluminium Sheets: IS 737:1987 (Grades 65032 or 52000 - H2 temper)
• Aluminium Extrusions: IS 733:1983 (Grade 64430 WP)
• Brass Rolled Sheets: IS 410:1977 (HD Grade CuZn40)
• Brass Castings: IS 292:1983 (LCB2)
• Brass Extruded Bars: IS 319:1985 (Type 1)

Sampling Size and Acceptance (Table B-4)

Summary

• Compliance with these IS standards is mandatory for material quality assurance.
• Sampling protocols guarantee product conformity.
• Materials specified ensure product durability and performance.

For exact dimensions and illustrations, consult the original IS 2681 documentation.

Classification and Key Details of Sliding Door Bolts per IS 2681

Bolt Types (Section 3.1)

• Type 1: Sand-cast brass hasp, staple, and clips; rolled or drawn brass bolts.
• Type 2: Die-cast brass hasp, staple, clips; rolled or drawn brass bolts.
• Type 3: Aluminium alloy hasp, staple, clips, and bolts (extruded or sheet form).

Size Ranges and Tolerances (Section 6.1, Tables 2 & 3)

Example Dimensions for Brass Bolts (Table 2)

Example Dimensions for Aluminium Bolts (Table 3)

Minimum of two pins required for aluminium alloy bolts.

Additional Requirements (Section 7.1)

• Smooth operation without jamming.
• Free from casting flaws or other imperfections.
• Countersunk screw holes as per IS 6760:1972.
• Edges and corners must be smoothly finished.

flowchart TD
    SlidingDoorBolts --> BrassTypes[Types 1 & 2]
    SlidingDoorBolts --> AluminiumType[Type 3]
    BrassTypes --> SizeRangeBrass[150 to 450 mm]
    AluminiumType --> SizeRangeAluminium[200 to 450 mm]

Detailed Dimensions and Tolerances for Sliding Door Bolts

Brass Bolts (Types 1 & 2) Dimensions (Table 2 - mm)

Tolerance ranges: ±2 mm for A, B; ±1 mm for C, E, F, H, K, N; ±0.5 mm for D, L, S, W.

Aluminium Alloy Bolts (Type 3) Dimensions (Table 3 - mm)

Refer to IS 2681 Clause 6.1 for detailed values and tolerances applicable to aluminium alloy sliding door bolts.

For precise dimension data, refer to the official IS 2681 tables and figures.

Materials Prescribed for Sliding Door Bolts in IS 2681

Aluminium Alloys

• Sheets: Conforming to IS 737:1987, Grades 65032 or 52000 in H2 temper.
• Extruded Bars and Sections: As per IS 733:1983, Grade 64430 WP.

Brass

• Rolled Sheets: HD Grade CuZn40 per IS 410:1977.
• Castings: Leaded brass LCB2 per IS 292:1983.
• Extruded Bars: Type 1 per IS 319:1985.

Dimensional Data (mm)

Tolerances vary from ±0.5 mm to ±2 mm based on specific dimension.

Notes

• Aluminium bolts require at least two pins for secure fixing.
• Refer to IS 1868:1982 for anodic coating standards on aluminium.
• All dimensions are expressed in millimeters.

Material Flow Diagram

graph TD
  Components[Sliding Door Bolt Parts] --> Aluminium[Aluminium Alloy]
  Components --> Brass[Brass]
  Aluminium --> AluminiumSheets[Sheets - IS 737:1987]
  Aluminium --> AluminiumExtrusions[Extruded - IS 733:1983]
  Brass --> BrassSheets[Rolled Sheets - IS 410:1977]
  Brass --> BrassCastings[Castings - IS 292:1983]
  Brass --> BrassExtrusions[Extruded Bars - IS 319:1985]

Use these IS standards for selecting appropriate materials to meet IS 2681 compliance.

Dimensional Guidelines and Tolerance Limits for Sliding Door Bolts

Applicability

• Covers brass sliding door bolts (Types 1 & 2) and aluminium alloy bolts (Type 3).
• All measurements in millimeters.

Brass Bolts (Types 1 & 2) - Key Dimensions (Table 2)

Tolerance Values

• A, B: ±2 mm
• C, E, F, H, J, K: ±1 mm
• D Dia, L, S, W: ±0.5 mm
• N, Q Dia: ±1 mm
• T: ±1 mm

Aluminium Alloy Bolts (Type 3) - Dimensions (Table 3)

Consult IS 2681 Clause 6.1 and associated tables for full details on dimensional requirements and manufacturing tolerances.

Installation Methods and Finishing Specifications for Sliding Door Bolts

Dimensions and Fixing Details (Clause 6.1 & Figure 1)

Tolerances: ±2 mm for A & B, ±1 mm for C, and so forth.

Material Standards

• Aluminium Alloy Sheets: IS 65032 or IS 52000-H2 (IS 737:1987)
• Aluminium Extrusions: IS 64430 WP (IS 733:1983)
• Brass Rolled Sheets: HD Grade CuZn40 (IS 410:1977)
• Brass Castings: LCB2 (IS 292:1983)
• Brass Extrusions: Type 1 (IS 319:1985)

Fixing Details

• Use wood screws No. 3 for brass bolts; No. 8 for aluminium alloy bolts.
• Fixing bolts should have threaded ends with washers and nuts (square or hexagon).
• Where clips are used, screws and nuts must be purchaser-approved to prevent unauthorized removal.

Sampling and Quality Control (Clause 11.1, Annex B)

• Sampling follows batch size with defined acceptance criteria.

This ensures secure installation and finish quality as per IS 2681.

Surface Finish Requirements as per IS 2681

• Aluminium Alloy Bolts (Clause 8.2):

  • Aluminium sliding door bolts are required to be anodized.
  • Permissible finishes include bright, natural, satin, or dyed types.
  • Minimum anodic coating thickness must meet Grade AC 10 according to IS 1868:1982.
  • This treatment provides corrosion resistance and enhances appearance.

• Material References:

  • Aluminium sheets: IS 65032 or IS 52000 - H2 temper (IS 737:1987).
  • Aluminium extrusions: IS 64430 WP (IS 733:1983).
  • Brass sheets and castings: IS 410:1977, IS 292:1983, IS 319:1985.

• Applicable Standards:

  • IS 1868:1982 for anodic coatings
  • IS 737:1987 for wrought aluminium sheets

Aluminium Surface Finish Summary

flowchart LR
    AluminiumBolt --> AnodizingProcess
    AnodizingProcess --> FinishType{Finish Type}
    FinishType --> Bright
    FinishType --> Natural
    FinishType --> Satin
    FinishType --> Dyed
    AnodizingProcess --> Thickness[Minimum Grade AC 10]
    Thickness --> Compliance[IS 1868:1982]

This guarantees durability and visual quality in line with the standard.

Marking Requirements for Sliding Door Bolts (IS 2681)

• Products must bear the BIS Standard Mark to confirm compliance.
• Markings should be clear, durable, and legible, appearing on the product or its packaging.
• Required marking details include:
  • Manufacturer's name or trademark
  • IS standard number (IS 2681)
  • Bolt size or type
  • Batch or lot number for traceability

Sampling and Acceptance (Clause 11.1, Table 4)

Material Conformance (Table 1)

Dimensional References

• See Tables 2 and 3 for brass and aluminium bolt dimensions.
• Typical dimension tolerances range from ±1 to ±2 mm.

Summary

• Marking ensures product traceability and standard compliance.
• Sampling enforces quality control.
• Material and size specifications meet Indian Standards.

flowchart LR
    Manufacturing --> Marking
    Marking --> MarkDetails{Details}
    MarkDetails --> ManufacturerID
    MarkDetails --> ISNumber
    MarkDetails --> SizeType
    MarkDetails --> BatchNumber
    Marking --> Packaging

Packaging Guidelines for Sliding Door Bolts under IS 2681

Materials (Clause 5.1, Table 1)

• Aluminium Alloy: Sheets (IS 737:1987, Grades 65032 or 52000-H2) and Extruded (IS 733:1983, Grade 64430 WP).
• Brass: Rolled sheets (IS 410:1977, HD Grade CuZn40), Castings (IS 292:1983, LCB2), Extruded bars (IS 319:1985, Type 1).

Dimensions (Clause 6.1, Tables 2 & 3)

• Brass bolts (Types 1 & 2) sized 150mm to 450mm, tolerances ±0.5 to ±2 mm.
• Aluminium alloy bolts (Type 3) sized 200mm to 450mm, minimum two pins required.

Sampling and Conformity (Clause 11.1)

• Bolts are grouped by type, size, and manufacturing batch for sampling.
• Sampling and acceptance follow criteria in Annex B.

Packaging Flowchart

graph LR
  Bolt[Sliding Door Bolt] --> BrassTypes[Brass Type 1 & 2]
  Bolt --> AluminiumType[Aluminium Alloy Type 3]
  BrassTypes --> DimensionTolerance[Dimensions & Tolerances]
  AluminiumType --> DimensionTolerance
  DimensionTolerance --> MaterialSpecs[Material Specifications per IS]
  DimensionTolerance --> ScrewCount[Number of Fixing Screws]

Sampling and Acceptance Criteria for Sliding Door Bolt Lots (IS 2681, Annex B and Clause 11.1)

• Lot Definition: All sliding door bolts of identical type, size, and batch constitute a lot.

• Sampling Methodology: Random samples are selected based on lot size to assess quality.

• Acceptance Criteria: A lot is accepted if the count of defective bolts in the sample does not exceed the allowed limit.

Example Sampling Table

Refer to IS 2681 Annex B for precise values.

Key Notes

• Sampling must be random and representative.
• Acceptance numbers set maximum allowable defective units.
• Lots exceeding defect limits are rejected.
• Proper packing and labeling ensure traceability (Clause 10.1).

flowchart TD
    LotOfBolts --> RandomSampling
    RandomSampling --> DefectCheck{Defects ≤ Acceptance Number?}
    DefectCheck -- Yes --> AcceptLot
    DefectCheck -- No --> RejectLot

Indian Standards Cited in IS 2681 (Section 2.1 & Annex A)

This list includes essential standards referenced for material and product specifications related to non-ferrous metal sliding door bolts:

Sampling and Acceptance Limits (Table 4, Section 2.1)

Notes

• Referenced IS codes cover critical materials and coatings.
• Sampling criteria define acceptable quality limits.
• Consult respective IS for detailed material and testing specifications.

Sampling and Acceptance Procedures (IS 2681, Clause 11.1 & Annex B)

Sampling Plan and Acceptance Thresholds:

• Samples must be randomly drawn from each lot.
• Acceptance is granted if defective count does not exceed permissible levels.
• Lots exceeding limits are rejected.

Material Specifications (Section 5.1, Table 1)

• Aluminium Alloy: IS 65032 or 52000 H2 (IS 737:1987), IS 64430 WP (IS 733:1983).
• Brass Sheets: HD Grade CuZn40 (IS 410:1977).
• Brass Castings: LCB2 (IS 292:1983).
• Brass Extrusions: Type 1 (IS 319:1985).

Additional Notes

• Dimensions and minimum requirements are mandatory per IS 2681.
• Packaging must include manufacturer identification (Clause 10.1).

flowchart TD
    LotOfBolts --> Sampling
    Sampling --> DefectEvaluation{Defects ≤ Permissible?}
    DefectEvaluation -- Yes --> AcceptLot
    DefectEvaluation -- No --> RejectLot

Composition of the Builders Hardware Sectional Committee (CED 15) and Sampling Overview

Committee Membership (Annex C)

• Includes representatives from Central Public Works Department, Ministry of Defence, Railway Board, Bureau of Indian Standards (ex-officio), Indian Aluminium Company, National Test House, and industry and research institutions.
• Members and alternates represent government, industry, and research sectors, ensuring diverse expertise.

Sampling and Acceptance Criteria (Section 2.1, Table 4)

Material Standards

• Aluminium Alloys per IS 65032 / IS 52000 (H2 temper, IS 737:1987).
• Brass per IS 410 (CuZn40), IS 292 (LCB2), IS 319 (Type 1).

Dimensional Compliance

• Detailed in Tables 2 and 3.
• Critical for interchangeability and quality assurance.

Committee Structure Diagram

graph TD
  Committee[Builders Hardware Sectional Committee CED 15]
  Committee --> Govt[Government Bodies]
  Committee --> Industry[Industry Representatives]
  Committee --> Research[Research Institutions]
  Govt --> CPWD[CPWD, MoD, Railway Board]
  Industry --> AluminiumCo[Indian Aluminium Co, Hindalco, Argent Industries]
  Research --> TestHouse[National Test House, CSIR, BIS]

Takeaway: The committee ensures thorough standardization with expert involvement; sampling criteria provide robust quality control; material and dimension standards align with Indian norms.