ISO 9100-9:2005

Overview

ISO 9100-9:2005 - Glass containers: Vacuum lug finishes (Part 9: 63, 66 and 70 deep) specifies the design and dimensional requirements for vacuum lug finishes with nominal depths of 63 mm, 66 mm and 70 mm intended for wide‑mouth glass containers. The standard is part of the ISO 9100 series covering vacuum lug finishes and provides the drawings, cutter profiles and tabulated dimensions needed to ensure consistent finish geometry and closure compatibility.

Key topics and technical requirements

• Scope and figures: Dimensions and profiles are given in Figures 1–3 and summarized in Table 1; unspecified details are selected according to application and general tolerances follow EN 22768‑1.
• Finish geometry: The document defines the cutter profile, thread construction and enlarged section views that control the lug form and sealing interface.
• Thread parameters: Thread geometry and pitch are specified (standard thread pitch shown in Table 1 as 1 1/2 T.P.I.) with associated lead and cutter inclination angles (e.g., α angles of about 5°06' to 4°35' for the specified sizes).
• Cutter inclination and leads: The cutter inclination at the α‑angle must be maintained for all cuts; start and end of leads correspond to the cut‑in profile defined by cutter diameter, except where riffles are required for mould opening.
• Functional requirements:
  • The theoretical cam‑off point shall lie on the upper flank of the thread to ensure predictable cap removal.
  • The sealing surface must be free of checks, dips, crizzles and other defects that could impair sealing.
  • Ovality of finish diameters must be minimized and critical diameters (E and T) should be concentric for reliable closure performance.
  • Closure position and required clearances are shown in the cross‑sectional details; optional contours and bead designs are permitted provided sufficient free space is maintained.

Applications and users

ISO 9100-9:2005 is intended for professionals involved in the specification, design, manufacture and quality control of wide‑mouth glass containers and closures:

• Glass bottle and jar manufacturers (finish design and mold tooling)
• Closure and cap designers (vacuum caps, lug closures)
• Packaging engineers and product developers (closure‑container compatibility)
• Tooling and mould makers (cutter profiles, leads and thread tooling)
• Quality assurance and regulatory teams ensuring standardized finishes across supply chains

Using this standard helps ensure interchangeability of closures, consistent vacuum sealing performance, and reduced manufacturing rework.

Related standards

• ISO 9100 series (other parts covering different finish sizes and types)
• EN 22768‑1 (general tolerances for linear and angular dimensions)