Thread type

Hi wanting to know what thread type is used on Fergy tea20.
Cheers

Two types , [u:0186a30b83]English[/u:0186a30b83] standard UNC and UNF . UNC is most commonly used for bolts fastened to cast components , UNF to most others .

First, the term 'ENGLISH' is not correct, never was used, and can be misleading though Charles' intent is sincere and by no means am I belittling him. When I see that used, I think okay, it is a METRIC thread, but 9 out 10 times it is referring to the American Standard, ANSI, thread types, now called UNIFIED Screw Threads. It used to be NC (National Coarse) and NF (National Fine) and now simply UNC and UNF for standard SAE (Society of Automotive) and ASAE (Society of Agricultural) Engineers. Sometimes European countries call it an 'Imperial Thread' form as opposed to their METRIC thread form. I'm a FORD-FERGUSON guy, so can't honestly say if the TE models were built all in Metric or not, but Bob Sybrandy of the FENA club would know for sure...


Tim *PloughNman* Daley(MI)

All the nuts and bolts on both my Harry Ferguson 'Tractor Overseas' and the 'Tractor English' were chased with my set of NC and NF tap and die set. I was told for the longest time even European and Asian made MF tractors were made with ... English, Imperial, decimal, fractional- whatever you call the dimensions where you live, no metrics anywhere till relatively recently- I don't know if Indian ones are yet metric - 2 tractors will soon tell us if his Danish made FE35's are metric or not...

My 1963 FE-35 X is NOT METRIC....Every Bolt and Cap Screw is either ...(National Course)NC or (National Fine)NF:

My TEA-20 is NOT METRIC.....Every Bolt and Cap Screw is either....NC or NF:

Bob..

Thanks for the clarification , I should have used the word Imperial , not English . It is just that Imperial is a word little used in other countries today . England was never a traditional Metric country , Imperial measurements were used .
UNC and UNF are the terms used in manuals printed in the United Kingdom [ England, Australia etc ] for the TE20 series tractors .

Nay bloody worries mate... a bloody pom's a bloody pom no bloody mater what ya bloody call em- right pcp??? too bloody right mate.....

Yes, Harry Ferguson first designed a plow for the Fordson tractor and worked with the Sherman Brothers/Ford. Soon after, he partnered with David Brown to build the Ferguson-Brown Type A Tractor which introduced the world to the Ferguson Spanner (Plow Wrench)that had INCH hash marks on it. Why? At the time plows were designed with 10" and 12" cuts, and the Plow Wrench was a 10-inch long tool that was used to measure depth and width of the plow furrow in addition to making needed tractor and plow adjustments. It wasn't til much later that Harry Ferguson Ltd. began adding CM to the opposite side of the plow wrench and various clones since have both inch and centimeter scales. The whole issue of INCH and Metric i snow a system called ISO, where they are still trying to standardize to one or the other. I was an engineer for the Big 3 for 38 years and in the late 70's we started seeing blueprints in METRIC. Why? Their attempt to compete with Japan and European car makers. Still today you need a combination tool set to work on your American car or truck. I need a 1/2" wrench as well as 12mm wrench -very frustrating...


Tim *PloughNman* Daley(MI)