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Width across flats is the distance between two parallel surfaces on the head of a screw, bolt or nut. The width across flats will define the size of the spanner or wrench needed. The width across flats will define the size of the spanner or wrench needed.
Two spanners, both nominal size 5 ⁄ 8 in, with a diagram superimposed to show the logic that allows them both to be nominal size 5 ⁄ 8 in when their actual sizes are clearly different (across-flats distance vs screw diameter). The across-flats definition is the common standard today, and has been for many decades. The larger spanner in this ...
The boundary layer thickness, , is the distance normal to the wall to a point where the flow velocity has essentially reached the 'asymptotic' velocity, .Prior to the development of the Moment Method, the lack of an obvious method of defining the boundary layer thickness led much of the flow community in the later half of the 1900s to adopt the location , denoted as and given by
Hexagonal (generally abbreviated to "hex") head widths (width across flats, spanner size) are for DIN 934 hex nuts and hex head bolts. Other (usually smaller) sizes may occur to reduce weight or cost, including the small series flange bolts defined in ISO 4162 which typically have hexagonal head sizes corresponding to the smaller 1st choice ...
Width across flats, the distance between the two flats of a wrench (UK: spanner) or socket; Wife acceptance factor (or wife approval factor or wife appeal factor), a colloquialism used in discussions related to hi-fi and home theater equipment, home automation
Salar de Uyuni is the world's largest salt flat, formed from the remnants of an ancient lake that evaporated long ago. ... approximately 300 meters across and 125 meters deep, is famous for its ...
across corners: Commonly used when measuring the corners of a hex drive, such as a hex nut. AF: across flats: Commonly used when measuring the flat surfaces of a hex drive, such as a hex nut. AFF above finished floor A dimension that establishes a distance away from the finished floor.
At first the sinkhole was roughly 10 meters (33 feet) wide and 5-meters (16-feet) deep, but it has since grown to twice that size. What about the driver? A 74-year-old man is believed to be ...