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Asia Bolts & Nuts (MFG) Sdn.Bhd.
Anchor Bolts TypeA  B  C  E  F

 
 
 

The Fastener Specialist - Asia Bolts & Nuts Manufacturer of bolts and nuts, fasteners for export

 
Glossary of terminology on topics related to nuts and bolts, threaded fasteners and tightening techniques.

ANGLE CONTROLLED TIGHTENING
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 giving the nut an additional measured rotation.

Frequently bolts are tightened beyond their yield point by this method in order to ensure that a precise preload is achieved.

Bolts of short length can be elongated too much by this method and the bolt material must be sufficiently ductile to cater for the plastic deformation involved. Because of the bolt being tightened beyond yield, its re-use is limited.

ANAEROBIC ADHESIVE
An adhesive which hardens in the absence of air, such adhesives are often used as a thread locking medium.

 
 
 

AUTOLOK NUT
A torque prevailing nut of an all metal construction. Covered by UK patent 1180842 the nut is marketed by GKN Screws and Fasteners Limited.

ALLOWANCE
An intentional clearance between internal or external thread and the design form of the thread when the thread form is on it's maximum metal condition.

Not all classes of fit have an allowance. For metric threads the allowance is called the fundamental deviation.

 

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