the hardware tools encompasses a load of equipment,
there are a number of quality control measures to
ensure that proper and good quality tools are produced
The ANSI and the BHMA in collaboration have set a
number of quality standards. The quality tests for
Butts and Hinges include weight tests, overload tests,
In case of nuts, screws and bolts quality tests consist
of tensile strength for the steel or metal used, groove
definitions, weight testing and physical dimensions.
Locks and keys too have their own quality control
methods which comprise of tests in the hardness of
the metal, the key hole configuration etc.
HAND TOOLS :
The ISO is the biggest standard setter in this group.
They have a total of nearly 150 Technical Committees
(TC) which set standards for almost every aspect.
The TC 29 is a committee specifically for Small Tools.
This committee is involved in drawing up standards
for tools like cutters, grinders, hacksaw blades,
and the attachments which are available for such similar
equipment. These standards involve various tests on
dimensions, characteristics of the cut, diameters,
metal used, high speed steel groups etc.
POWER TOOLS :
Two committees extensively deal with the power tools.
The TC 39 is designated for machine tools and TC 118
for the pneumatic tools, machines and equipment. The
TC 39 deals with the speeds and feeds of a number
of machine tools, it also has standards for the noise
emission by the machine tools and the minimum safety
The TC 118 on the other hand is involved with more
powerful tools. The sub committee TC 118/ SC 3 deals
handles the power outputs and air consumption of such
units, the vibration at the handles of all the tools
like grinders, impact drills and so on, the tolerance
of such gear and procedure, performance parameters
as well as the allowed noise levels.
It is to be noted that most of the big producers of
all kinds of hardware be it nuts and bolts, or the
various hand tools, powered as well as unpowered ones,
offer life time guaranties on their products. Thus
it is always a good idea to go in for quality hardware
as flawed tools pose major risks to the user.