Cross recesses for screws
This International Standard defines two types of cross recesses for screws:
– recess type H;
– recess type Z.
Included in this International Standard is a method of penetration gauging for both types.
Check out other specifications
STRAIGHTNESS GAGE AND GAGING FOR BOLTS AND SCREWS
Standard Specification for Stainless Steel Socket Set Screws [Metric]
Slotted head screws
High strength hexagon fit bolts with large widths across flats for structural steel bolting
Geometrical product specifications (GPS) — ISO code system for tolerances on linear sizes – Part 2: Tables of standard tolerance classes and limit deviations for holes and shafts (ISO 286-2:2010)
ELECTRODEPOSITED COATINGS ON THREADED FASTENERS (UNIFIED INCH SCREW THREADS (UN/UNR))
Quick Connect Coupling Specification for Liquid Fuel and Vapor/Emissions Systems
Hot rolled products of structural steels — Part 2: Technical delivery conditions for non-alloy structural steels