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Fastener Material Key

Material Key

A2-70 grade stainless steel - also known as grade 304 or 18/8. A general purpose grade of stainless steel.

 

A4-70 grade stainless steel - also known as grade 316 or 18/8/3. A higher corrosion resistant, marine grade of   stainless steel.


A4-80 grade stainless steel - identical corrosion resistance to A4-70 but with a higher tensile strength equivalent to that of 8.8 high tensile steel.


Brass - offers an attractive, corrosion resistant finish.


High tensile carbon steel with a bright zinc plated finish - the general purpose non-stainess grade for screws and bolts where good corrosion resistance is not required.


High tensile carbon steel with a bright zinc plated finish - the general purpose non-stainess grade for washers where good corrosion resistance is not required.


High tensile carbon steel with a bright zinc plated finish - the general purpose non-stainess grade for nuts where good corrosion resistance is not required.


Nylon - a tough lightweight plastic. On offer here to help protect bodywork/panels when assembled with metal fasteners.