ISO 9100-7:2005

Overview

ISO 9100-7:2005 - "Glass containers - Vacuum lug finishes - Part 7: 58 deep" is an ISO standard that specifies the dimensional design and key features of vacuum lug (lug-type) finishes with a nominal depth of 58 mm for wide‑mouth glass containers. It is one part of the ISO 9100 series covering vacuum lug finishes for various nominal sizes. The document defines the required cutter profile, thread construction, sealing area characteristics and reference figures/tables for manufacture and inspection.

Key topics and requirements

• Scope and intent
  • Defines the geometry and allowable features for a 58 mm deep vacuum lug finish used on wide‑mouth glass jars and containers.
• Dimensions and drawings
  • Detailed finish geometry is given in the standard’s figures (cutter profile, thread sections, enlarged finish section) and Table 1. Manufacturers should use these as the authoritative reference for tooling and inspection.
• Thread and cutter characteristics
  • Specifies thread construction and cutter profile requirements, including cutter inclination (α) and lead/start/end conditions for cuts.
  • Indicates the theoretical cam‑off point must be located on the upper flank of the thread to ensure proper cap removal.
• Sealing surface and finish quality
  • Sealing surface must be free of checks, dips, crizzles and other defects that could impair closure performance.
• Concentricity and ovality
  • Calls for minimal ovality in finish diameters and concentricity between critical diameters (e.g., E and T) to ensure reliable sealing and closure fit.
• Design allowances
  • Cross‑hatched areas in the drawings mark closure position; contours below certain heights and bead designs are optional provided adequate clearance is maintained.
• Tolerances and normative references
  • Unspecified tolerances follow general tolerances (EN 22768-1). The standard notes that unspecified details should be chosen according to the application.

Applications and users

Who benefits from ISO 9100-7:2005:

• Glass container designers and mold/tooling engineers specifying lug finishes for wide‑mouth jars
• Bottle and jar manufacturers implementing consistent finish geometry for automated filling and capping
• Closure and cap producers designing compatible vacuum lug caps
• Quality assurance and inspection teams verifying finish dimensions and sealing integrity
• Packaging engineers and specifiers in food, beverage, pharmaceutical and specialty glass sectors

Practical uses:

• Tooling and mould design for 58 mm deep lug finishes
• Closure selection and cap removal performance validation
• Production inspection criteria for sealing surfaces, concentricity and ovality
• Ensuring interchangeability and reliable vacuum sealing in wide‑mouth packaging

Related standards

• ISO 9100 (series) - other parts covering different lug nominal sizes
• EN 22768-1 - General tolerances for linear and angular dimensions (referenced for unspecified tolerances)

Keywords: ISO 9100-7:2005, vacuum lug finishes, 58 deep, glass containers, wide-mouth, finish dimensions, cutter profile, sealing surface, closure design, packaging standards.