What are hexagon and Torx keys?

     
     
 Shop for Hexagon and Torx keys    
     
     
 Torx keys have a six pointed star like end instead of the flat sided hexagon shape of a hex key Hexagon and Torx keys are simple tools designed for turning their corresponding fasteners. 
     
   

What is a hexagon key?

 
 Hexagon keys are a hexagonal shaped bar bent into an 'L' shape. A hexagon key is for tightening and undoing fasteners - bolts and screws - that have hexagonal (six-sided) indents, or recesses, in their heads. These are known as "in-hex" (short for internal hexagon) heads. Whilst they may occasionally be available individually, they are more generally sold as sets, with different types available for various circumstances. 
     
   

Why are they called hexagon keys?

 
 Hex keys get their name from the hexagonal cross sectional shape that they have. 

Hexagon keys get their name from the hexagonal cross-section of the bar from which they are made. This shape fits into the fastener which is to be turned, just like a key fits into a lock.

 
     
   

What is a Torx key?

 
 Torx fasteners have a six pointed star like female recess in their head. A Torx key is for tightening and undoing fasteners - bolts and screws - that have Torx (six-pointed, star-like) indents, or recesses, in their heads. While Torx keys may occasionally be available individually, they are more generally sold as sets, with different types available for various circumstances. 
     
   

Other names

 
 Hexagon keys have several other commonly used names such as; Hex key, Allen wrench and Inbus 

Hexagon keys are also known by several other names including hex key, hex wrench, Allen key, and Allen wrench. Torx is a brand name trademark for fastener heads and keys that have a six-point, star-like pattern. The generic name given to Torx fasteners and keys by ISO (the International Organisation for Standardisation - or more information see What standards are associated with Torx and hex keys?) is hexalobular, although virtually no one uses this name. Instead they will more commonly be referred to by the generic terms "star" or "six-point".  

 
     
   

What is the difference between a hexagon and Torx key?

 
 Torx keys have a six pointed star like end instead of the flat sided hexagon shape of a hex key Torx keys at first glance look very similar to hex keys. However, Torx keys have a six pointed star-like shape, instead of the six flat sides of a hex key. Unlike hex keys, which usually have a hexagonal cross-section along their entire length, Torx keys frequently have a circular cross-section, with the Torx shape only appearing at the ends of the tool.  
     
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