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

IS 2681 - Scope Summary with Key Specifications

Scope (Clause 2.1)

• Covers non-ferrous metal sliding door bolts made of aluminium alloys and brass.
• Applicable materials conform to related IS standards (Annex A), e.g.:
  • Aluminium sheets: IS 737:1987 (H2 temper)
  • Aluminium bars/rods: IS 733:1983
  • Brass sheets: IS 410:1977 (HD Grade CuZn40)
  • Brass castings: IS 292:1983 (LCB2)
  • Brass extruded: IS 319:1985 (Type 1)

Key Tables & Dimensions

Dimensions (Example: Brass Sliding Door Bolts - Table 2)

Tolerances: ±2 mm for A, B; ±1 mm for C, E, F, H; ±0.5 mm for D Dia.

Sampling & Conformity (Clause 11.1)

• Sampling and conformity criteria per Annex B.

Summary Diagram: Material to Part Mapping

graph LR
  AluminiumAlloy -->|Sheets| ClipsStaples
  AluminiumAlloy -->|Bars/Rods| Bolts
  Brass -->

Referenced Indian Standards in IS 2681 (Clause 2.1 & Annex A)

IS 2681 refers to several Indian Standards essential for materials and components of non-ferrous metal sliding door bolts:

Key Specifications for Materials (Table 1, Clause 5.1)

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

Sampling and Quality Control (Table B-4)

Summary

• IS 2681 mandates use of these referenced IS for material quality.
• Sampling criteria ensure conformity in production.
• Materials must meet specified IS grades for durability and performance.

For detailed dimensions and illustrations, refer to IS 2681 figures and tables directly

IS 2681: Sliding Door Bolts Key Specifications

Types of Sliding Door Bolts (Clause 3.1)

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

Dimensions & Tolerances (Clause 6.1, Tables 2 & 3)

Table 2 (Brass Sliding Door Bolts Sample)

Table 3 (Aluminium Alloy Sliding Door Bolts Sample)

Minimum two pins required for Type 3.

Additional Specifications (Clause 7.1)

• Smooth sliding action.
• Free from casting/defects.
• Countersunk screw holes per IS 6760:1972.
• Sharp edges finished smooth.

flowchart TD
    A[Sliding Door Bolts] --> B

IS 2681: Sliding Door Bolts — Key Sizes and Specifications

1. Dimensions of Brass Sliding Door Bolts (Types 1 & 2) — Table 2 (all in mm)

Tolerances: ±2 mm (A, B), ±1 mm (C, E, F, H, K, N), ±0.5 mm (D Dia, L, S, W), others as per table.

2. Dimensions of Aluminium Alloy Sliding Door Bolts (Type 3) — Table 3 (all in mm)

IS 2681 - Materials for Sliding Door Bolts

Key Materials Specifications (Clause 5.1 & Table 1)

• Aluminium Alloy:
  • Sheets: IS 737:1987 (Grades 65032 or 52000 - H2)
  • Extruded Bars: 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 & Tolerances

• Tolerances: ±0.5 to ±2 mm depending on dimension.

Notes:

• Minimum two pins for aluminium alloy bolts.
• Refer to IS codes for material standards and anodic coatings (IS 1868:1982).
• Dimensions are in millimeters.

Summary Diagram of Material Compliance Flow

graph TD
A[Sliding Door Bolt Components] --> B[Aluminium Alloy]
A --> C[Brass]
B --> D[Sheets: IS 737:1987]
B --> E[Extruded: IS 733:1983]
C --> F[Rolled Sheets: IS 410:1977]
C --> G[Castings: IS 292:1983]
C --> H[Extruded Bars: IS 319:1985]

Use these standards for material selection and dimensioning to ensure conformity with IS 2681.

IS 2681: Dimensions and Tolerances for Sliding Door Bolts

Key Points from Clause 6.1 & Tables 2 & 3:

• Dimensions and tolerances apply to Brass (Types 1 & 2) and Aluminium Alloy (Type 3) sliding door bolts.
• All dimensions are in millimetres (mm).
• Tolerances are specified per dimension to ensure manufacturing precision.

Table 2: Brass Sliding Door Bolts (Types 1 & 2)

Tolerances:

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

Table 3: Aluminium Alloy Sliding Door Bolts (Type 3)

IS 2681: Fixing and Finish for Sliding Door Bolts

Key Dimensions (Clause 6.1 & Fig. 1)

All dimensions in mm; tolerances ±2 mm for A & B, ±1 mm for C, etc.

Materials (Clause 5.1)

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

Fixing Specifications

• Use wood screws No. 3 for brass bolts and No. 8 for aluminium alloy bolts.
• Minimum two pins for aluminium alloy sliding door bolts.
• Machine screws with 10 mm thread depth recommended for assembly.

Sampling & Quality (Clause 11.1, Annex B)

Surface Finish Requirements (IS 2681)

• Aluminium Alloy Finish (Clause 8.2):

  • Aluminium sliding door bolts shall be anodized.
  • Finish types allowed: bright, natural, sat (satin), or dyed.
  • Anodic coating thickness: minimum Grade AC 10 as per IS 1868:1982.
  • Ensures corrosion resistance and aesthetic appeal.

• Materials Standards (Clause 5.1 & Annex A):

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

• Relevant IS Codes for Surface Finish:

  • IS 1868:1982 – Anodic coatings on aluminium and its alloys.
  • IS 737:1987 – Wrought aluminium and aluminium alloy sheets and strips.

Summary Table: Aluminium Surface Finish

flowchart LR
    A[Aluminium Alloy Bolt] --> B[Anodizing Process]
    B --> C{Finish Type}
    C --> D[Bright]
    C --> E[Natural]
    C --> F[Satin]
    C --> G[Dyed]
    B --> H[Minimum Thickness: Grade AC 10]
    H --> I[IS 1868:1982 Compliance]

This ensures durability and appearance as per IS 2681 standards.

IS 2681: Marking Specifications for Sliding Door Bolts

Marking Requirements:

• The Standard Mark (BIS mark) ensures conformity to IS 2681.
• Marking must be clear, durable, and legible on the product or packaging.
• It includes:
  • Manufacturer's identification.
  • IS number (IS 2681).
  • Size or type of the sliding door bolt.
  • Batch or lot number for traceability.

Sampling & Conformity (Clause 11.1 & Table 4):

Material Requirements (Table 1):

Key Dimensions:

• Refer to Tables 2 & 3 for detailed dimensions of brass and aluminium sliding door bolts.
• Dimensions tolerance generally ±1 to ±2 mm depending on size.

Summary:

• Marking must include manufacturer, IS number, size/type, and batch.
• Sampling follows strict criteria for quality control.
• Materials conform to specified IS standards.
• Dimensions and tolerances are standardized for uniformity.

For detailed dimension tables and illustrations, refer to IS 2681 Clause 6.1 and Fig. 1.

flowchart LR
    A[Manufacturing] --> B[Marking]
    B --> C{Marking Details}
    C --> D[Manufacturer ID]
    C --> E[IS Number]
    C --> F[Size/Type]
    C --> G[Batch Number]
    B --> H[Packaging]
    H

IS 2681: Packing (Sliding Door Bolts) - Key Specifications

1. Materials (Clause 5.1, Table 1)

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

2. Dimensions (Clause 6.1, Tables 2 & 3)

• Brass Sliding Door Bolts (Types 1 & 2): Sizes 150mm to 450mm with tolerances ±0.5 to ±2 mm.
• Aluminium Alloy Sliding Door Bolts (Type 3): Sizes 200mm to 450mm; minimum two pins required.

3. Sampling & Conformity (Clause 11.1)

• Sampling method and conformity criteria as per Annex B.
• Lot grouping: bolts of same type, size, and manufacturing batch.

Summary Diagram: Packing Components

graph LR
A[Sliding Door Bolt] --> B[Brass Type 1 & 2]
A --> C[Aluminium Alloy Type 3]
B --> D[Dimensions & Tolerances]
C --> D
D --> E[Material Specs (IS codes)]
D --> F[Number of Screws]

For detailed dimensions and tolerances, refer to Tables 2 & 3 in Clause 6.1.

IS 2681: Sampling and Criterion for Conformity (Annex B, Clause 11.1)

• Lot Definition:
  All sliding door bolts of the same type, size, and manufacturing batch form one lot.

• Sampling Plan:
  Samples are drawn from each lot for quality testing. The sample size depends on the lot size (see Table below).

• Criterion for Conformity:
  The lot is accepted if the number of defective bolts in the sample does not exceed the acceptance number.

Typical Sampling Table (Example)

Note: Exact values should be confirmed from IS 2681 Annex B.

Key Points:

• Sampling is random and representative.
• The acceptance number defines max allowable defects.
• If defects > acceptance number, the lot is rejected.
• Packing and labeling per Clause 10.1 ensure traceability.

flowchart TD
    A[Lot of bolts] --> B[Random Sampling]
    B --> C{Defects ≤ Ac?}
    C -- Yes --> D[Lot Accepted]
    C -- No --> E[Lot Rejected]

This ensures quality control by statistically verifying conformity without testing every item.

IS 2681: List of Referenced Indian Standards (Clause 2.1 & Annex A)

The following key Indian Standards are referenced as adjuncts in IS 2681 for materials and specifications related to non-ferrous metals and hardware:

Sampling and Conformity Criteria (Table 4, Clause 2.1)

Notes:

• These referenced standards cover materials (brass, aluminium alloys), coatings, and hardware components relevant to non-ferrous building hardware.
• Sampling table defines quality control limits for door bolts in production lots.
• For detailed material properties, dimensions, and testing methods, refer to the individual IS codes listed.

If you need formulas or design data related to these materials or hardware, please specify!

IS 2681: Sampling and Criterion for Conformity (Clause 11.1, Annex B)

Sampling Plan & Acceptance Criteria:

• Method: Random sampling from each lot.
• Acceptance: Lot is accepted if the number of defective bolts ≤ permissible defective bolts.
• Rejection: If defects exceed permissible limits, the lot is rejected.

Key Material Specifications (Clause 5.1, Table 1)

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

Notes:

• Dimensions and minimum requirements are binding as per IS 2681.
• Packing: Bolts must be packed in cartons with manufacturer's name/trademark label (Clause 10.1).

flowchart TD
    A[Lot of Sliding Door Bolts] --> B[Random Sampling]
    B --> C{Number of Defects ≤ Permissible?}
    C -- Yes --> D[Accept Lot]
    C -- No --> E[Reject Lot]

This concise sampling and conformity criterion ensures quality control per IS 2681.

IS 2681: Committee Composition & Sampling Criteria Summary

1. Committee Composition (Annex C)

• The Builders Hardware Sectional Committee CED 15 includes representatives from:
  • Central Public Works Department, Ministry of Defence, Railway Board, BIS (Ex-officio), Indian Aluminium Co, National Test House, and various industries and research institutes.
• Members and alternates are appointed from government, industry, and research organizations ensuring wide expertise.

2. Sampling & Conformity Criteria (Clause 2.1, Table 4)

• Sampling size depends on lot size.
• Permissible defective bolts indicate quality acceptance limits.

3. Material Specifications (Table 1)

• Aluminium Alloy conforming to IS 65032 / IS 52000 (H2 of IS 737:1987).
• Brass conforming to IS 410 (CuZn40), IS 292 (LCB2), IS 319 (Type 1).

4. Dimensions

• Detailed in Tables 2 and 3 for Brass and Aluminium sliding door bolts respectively.
• Dimensions are critical for compliance and interchangeability.

Summary Diagram of Committee Composition

graph TD
  A[Builders Hardware Sectional Committee CED 15]
  A --> B[Government Departments]
  A --> C[Industry Representatives]
  A --> D[Research Institutes]
  B --> B1[CPWD, Ministry of Defence, Railway Board]
  C --> C1[Indian Aluminium Co, Hindalco, Argent Industries]
  D --> D1[National Test House, CSIR, BIS]

Key takeaway: The committee ensures standardization with expert representation; sampling follows strict criteria for quality control; materials and dimensions adhere to specified IS codes for reliability in sliding door bolts.