ISO 7085-1999 PDF

Full title and description

ISO 7085:1999 — Mechanical and performance requirements of case hardened and tempered metric thread rolling screws. This International Standard specifies requirements for case‑hardened and tempered metric thread‑rolling screws that produce internal (female) threads compatible with ISO general‑purpose metric screw threads.

Abstract

Specifies mechanical and performance characteristics for case‑hardened and tempered metric thread‑rolling screws intended for general engineering use. The screws covered by the standard form female threads fitting ISO general‑purpose metric screw threads and apply to nominal thread diameters from 2 mm up to and including 12 mm. The standard notes that ISO 898‑1 (for bolted fasteners) is not applicable to screws manufactured to this specification.

General information

• Status: Withdrawn / Retired.
• Publication date: September 1999 (Edition 1).
• Publisher: International Organization for Standardization (ISO).
• ICS / categories: 21.060.10 (Bolts, screws, studs).
• Edition / version: Edition 1 (1999-09).
• Number of pages: 8 (ISO listing).

ISO lists the standard as Withdrawn; national/adopted versions show various withdrawal dates in different countries (examples below).

Scope

This standard applies to case‑hardened and tempered metric thread‑rolling screws that, by design and manufacture, produce an internal (female) thread conforming to ISO general‑purpose metric screw threads. It covers nominal thread diameters from 2 mm to 12 mm inclusive and defines mechanical and functional characteristics appropriate for general engineering applications. The standard excludes applicability of ISO 898‑1 to these screws.

Key topics and requirements

• Definition and classification of case‑hardened and tempered metric thread‑rolling screws.
• Dimensional/functional requirement that resulting female threads fit ISO general‑purpose metric threads.
• Mechanical/performance characteristics required of the screws (treatment: case hardening and tempering; performance criteria specified for general engineering use).
• Nominal thread diameter range covered: 2 mm to 12 mm inclusive.
• Clarification that ISO 898‑1 does not apply to screws made to this standard.

Typical use and users

Manufacturers of thread‑rolling (self‑tapping) screws, fastener designers, procurement specialists, quality engineers, and standards/technical committees working with metric fastening systems use this standard as a technical specification for producing and specifying case‑hardened and tempered thread‑rolling screws for general engineering applications.

Related standards

Referenced or related documents include ISO general‑purpose metric thread standards (for thread forms and tolerances) such as ISO 261/ISO 724/ISO 965 series and ISO 68‑1 (basic profile), and ISO 898‑1 is explicitly noted as not applicable to screws made to ISO 7085:1999. Users should consult current ISO thread and fastener standards for designations, tolerances and selected sizes.

Keywords

metric thread, thread‑rolling screw, case hardened, tempered, self‑tapping, fasteners, ISO 7085, bolts and screws, general engineering

FAQ

Q: What is this standard?

A: ISO 7085:1999 specifies mechanical and performance requirements for case‑hardened and tempered metric thread‑rolling screws that form female threads compatible with ISO general‑purpose metric screw threads.

Q: What does it cover?

A: It covers the characteristics, dimensional/functional relationship to ISO metric thread forms, and performance expectations for such screws in nominal diameters 2 mm to 12 mm inclusive; it is intended for general engineering applications.

Q: Who typically uses it?

A: Fastener manufacturers, product designers, purchasing and quality engineers specifying or producing case‑hardened/tempered thread‑rolling screws, and standards committees concerned with fastener specifications.

Q: Is it current or superseded?

A: The standard is Withdrawn (ISO listing). National/adopted versions were withdrawn at various times (examples: NBN shows a withdrawal entry in 2008; EVS records withdrawal from 10 February 2010). Users should not rely on ISO 7085:1999 as a current active ISO specification and should check for any successor or alternative specifications for their application.

Q: Is it part of a series?

A: ISO 7085:1999 is a standalone ISO International Standard addressing a specific class of thread‑rolling screws, but it is related to the broader family of ISO metric thread standards (ISO 68‑1, ISO 261, ISO 965, ISO 724) which define thread forms, sizes and tolerances.

Q: What are the key keywords?

A: Case hardened, tempered, thread‑rolling screws, metric thread, self‑tapping screws, ISO 7085, bolts, screws, studs.