9 Terms
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Nuts & bolts
Engineering science related to nuts, bolts, threaded fasteners and tightening techniques.
Industry: Machine tools
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Nuts & bolts
nicked threads
Machine tools; Nuts & bolts
Nicks or indentations in threads can occur during the manufacturing process and during fastener transportation. In general, nicked thread problems tend to increase as the thread diameter increases ...
upsetting
Machine tools; Nuts & bolts
Axial compression of wire without preheating to form heads on fasteners. Used in the cold-heading process to produce an almost limitless variety of special design products.
thread series
Machine tools; Nuts & bolts
Standardized diameter and pitch combinations with a designated number of threads per inch for a given diameter. There are eleven such group combinations.
bump thread
Machine tools; Nuts & bolts
A modified thread profile patented and trade mark of the Bosco Tool Inc. The thread form has a small projection at the pitch diameter that eliminates the clearance from the thread assembly on both ...
effective nut radius
Machine tools; Nuts & bolts
The radius from the center of the nut to the point where the contact forces, generated when the nut is turned, can be considered to act.
angle controlled tightening
Machine tools; Nuts & bolts
A tightening procedure in which a fastener is first tightened by a pre-selected torque (called the snug torque) so that the clamped surfaces are pulled together, and then is further tightened by ...
