Machine Screws - Pozidrive Pan - UNF

A machine screw is a type of screw that is commonly used in industrial and manufacturing applications to secure components within engines, electronic products and general machinery.

Pozidriv pan head machine screws have a slightly raised domed head, whereas with the slotted version the head is flat on the top – resembling an upturned frying pan.

Pozidriv refers to the recess in the head. This type of machine screw is installed with a pozidrive screwdriver or driver bit.

Pozidriv pan head machine screws are available in either a zinc plated or stainless-steel finish.

About UNF Thread

UNF stands for Unified National Fine. It is a common imperial thread type with more threads per axial distance than its UNC equivalent.

Unified thread types (UNF and UNC) were introduced at the beginning of World War 2 to enable the interchangeability of machinery manufacturing between the USA, Canada and Great Britain. Still commonly found on a vast array of old machines and vehicles in the UK, UNF and UNC threads continue to be the standard thread in the USA and Canada.

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