Nuts & bolts

Nuts & bolts

Engineering science related to nuts, bolts, threaded fasteners and tightening techniques.

Industry: Machine tools

Add a new term

Contributors in Nuts & bolts

Become a Contributors

Nuts & bolts

taylor-forge method

Machine tools; Nuts & bolts

A method developed by four engineers of the Taylor-Forge Company in Chicago in the 1930's that subsequently formed the basis of the ASME code for flanged joint design. The assumptions made by the ...

prevailing torque

Machine tools; Nuts & bolts

The torque required to run a nut down a thread on certain types of nuts designed to resist vibration loosening. The resistance can be provided by a plastic insert or a noncircular head.

step-lock bolt (SLB)

Machine tools; Nuts & bolts

The step-lock bolt (SLB) is a thread form that has been modified to resist vibration loosening. The thread has several horizontal portions (i.e. no lead angle) whose purpose is to prevent torsion ...

A patented torque prevailing nut that uses a nylon patented insert to provide a locking feature. The nylon insert, it is claimed, helps to seal the bolt thread against seepage of water, oil, petrol, ...

waisted shank bolt

Machine tools; Nuts & bolts

A bolt whose diameter is less than the minor diameter of the thread. Frequently the shank of the bolt is 0.9 times the root diameter.

self loosening

Machine tools; Nuts & bolts

Threaded fasteners can come loose on occasions without human intervention. This loosening can be due to creep, embedding, stress relaxation or the fastener self-rotating (which is often called ...

fluoro-carbon thread coating

Machine tools; Nuts & bolts

A low friction coating applied to threads. This type of coating is frequently used to prevent thread fouling when an assembly containing threaded fasteners is painted. Unless masked in some way ...