Prufi
FST-011Heuristic screen

Hexalobular countersunk screw

Fasteners

Scope and limits

Shape screening for hexalobular countersunk screw. Exact dimensions, thread and mechanical properties remain unverified. Selected standard reference: ISO 14581:2022. Profile: screw / bolt; head/body form: countersunk; drive: hexalobular; thread series: Coarse. These are selected family attributes; geometry does not identify a product standard. A declared nominal size from 0.5 to 100 mm is required; optional pitch and thread length must be positive, with pitch below nominal size. These are input limits, not normative dimensional tables.

Standards and references

ISO 14581:2022

Hexalobular countersunk screw

Source scope
Metric hexalobular countersunk screw. Selected by the user; geometry does not identify a product standard.
Implementation in Prufi
Family shape screening and declared-input consistency only. All dimensional bands are Prufi heuristics, not normative dimensions. Thread geometry, tolerances, material, mechanical properties and complete conformity are not verified.

STEP examples for this check

No public STEP example is currently assigned to this check.

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