Trade Standards

Trade Standards For Fasteners:

( MM )

The millimetre is a unit of length in the metric system, equivalent to one thousandth of a metre.

British Standard With worth
( BSW )

British Standard Whitworth (BSW) is an imperial-unit-based screw thread standard.

British Standard Fine
( BSF )

British Standard Fine (BSF) is a screw thread form, as a fine-pitch alternative to British Standard Whitworth (BSW) thread.

British Association
( BA )

British Association screw threads, or BA screw threads, are a largely obsolete set of small screw threads, the largest being 0BA at 6 mm diameter.

Unified National Coarse
( UNC )

The Unified Thread Standard (UTS) defines a standard thread form and series—along with allowances, tolerances, and designations.

Unified National Fine
( UNF )

Unified fine thread, the fine thread series of the Unified Thread Standard UniFirst, a supplier of uniforms and protective clothing United.

German Standard
( DIN )

ISO and ASTM International unveiled a framework for creating global additive manufacturing standards.