The study has found that the Crystal Palace is the earliest known building to use Whitworth screw threads, later known as British Standard Whitworth (BSW), the world’s first national screw ...
The company offers clamp bolts and inserted bolts for the Russian market, clip bolts for concrete sleeper and crane rail, and bolts with British Standard Whitworth (BSW) threads. Round or square necks ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback