PRODUCT FAMILY

Fastener and fixings products have over time developed product families.

A good idea for a head or drive type can extend over a considerable product range as the method of production is developed and proves to be advantageous. Some of these families have developed over centuries but most within the last 100 years. 

Links:

             BOLT                                                           MACHINE SCREWS

           SCREW PARALLEL THREADS                    SCREW TAPERED THREADS

           NUTS                                                            WASHER                                                     

           SOCKET SCREWS                                        STUDDING & STUDS                                 

SHEET METAL  

PINS  

CIRCLIPS

PLUGS

FIXINGS

Looking at the linked pages above will give you an insight into how the product families have developed and the possibilities for future change.