Low socket cap screw with pilot recess

Scope and limits

Shape screening for low socket cap screw with pilot recess. Exact dimensions, thread and mechanical properties remain unverified. Selected standard reference: DIN 6912:2021-03. Profile: screw / bolt; head/body form: low cap; drive: hex socket; 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.