A screw is a type of fastener, in some ways similar to a bolt typically made of
metal, and ..... The connection of this sense to the sense of a door bolt or the
crossbow bolt is apparent. ... external threads that meet an exacting, uniform boltthread specification (such as ISO metric screw thread M, MJ, Unified Thread
Standard UN, ...
Screw Thread Adapters
The SD1 is an adapter ring that provides a means to attach 8-32 (M4) tapped
components ... Imperial, Metric, and Imperial-Metric Adapters; M3, M4, M6, 4-40,
6-32, 8-32, and 1/4"-20 ... We also offer internal-to-external threaded stud