Overview
EN ISO 7436:2024 - Fasteners: Slotted set screws with cup point specifies the characteristics of slotted set screws with a cup point in steel and stainless steel, covering metric coarse pitch threads M1,6 to M12 and product grade A. The standard defines dimensions, mechanical requirements, surface condition options, marking and labelling, and reference normative documents used to select hardness classes, stainless grades and dimensional options.
Key topics and requirements
- Scope and materials: Applies to steel and stainless steel slotted set screws with cup point, product grade A.
- Thread range: Metric coarse pitch threads from M1,6 to M12.
- Dimensions and lengths: Detailed nominal lengths, thread lengths and point geometry are given (see figures/tables in the standard) with options for regular and short standard lengths.
- Mechanical properties: Hardness classes for steel and stainless fasteners refer to ISO 898-5 and ISO 3506-3 respectively (e.g., hardness classes 12H, 14H, 21H, 22H where applicable).
- Tolerances and threads: Thread tolerances and tolerance class 6g and principles from ISO 965-1 apply; dimensional symbols follow ISO 225 / ISO 724.
- Surface condition and coatings: Default delivery: steel in “as processed” condition; stainless steel “clean and bright” (passivated option available). Coatings such as electroplated finishes (ISO 4042) or zinc-flake (ISO 10683) are allowed by agreement. Surface integrity limits follow ISO 6157-1.
- Marking & labelling: Product marking is not required unless agreed. Package labelling must include reference to ISO 7436, thread size and nominal length, hardness/grade, surface condition, manufacturer ID, lot number and quantity.
- Designation & acceptance: Use ISO 8991 designation rules; acceptance inspection per ISO 3269.
Applications and users
EN ISO 7436:2024 is used by:
- Fastener manufacturers for product specification and production control.
- Design and mechanical engineers specifying set screws in assemblies (collars, pulleys, gears, shaft locking applications).
- Purchasing/procurement teams to ensure correct grade, length and finish.
- Quality and inspection personnel for acceptance testing and labelling requirements.
- Distributors and OEMs requiring clear designation, traceability and conformity to metric fastener standards.
Keywords: slotted set screws, cup point, ISO 7436:2024, metric threads M1.6–M12, fasteners, product grade A, hardness class, stainless steel fasteners, set screw dimensions.
Related standards
This standard ensures consistent specification and interchangeability of slotted cup-point set screws across manufacturing and supply chains.
