A hub nut socket.

K.C. Bacon.(Baconsdozen) 

BSW/BSF and BA spanners for vintage,veteran and classic cars,motorcycles or machinery .

 BA or British Association sockets


Whitworth BA sockets.

AF sockets

AF spanners

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Conversion charts.

After years selling professional quality imperial measurement based tools ,we're retiring, and will no longer operate on a full time basis, we're no longer here 24/7 but if you genuinely want some good quality imperial tools for your classic car or bike and can't get us first time,try again,I use the tools I sell on my own vehicles, I dont sell and never have sold,cheap junk .
Whitworth and BSF combination,open ended and ring spanners.
Whitworth/BSF and BA are not the same as AF or metric. They are commonly found on veteran,vintage and classic cars or bikes, old engines (including steam,stationary or marine etc) ,aeroplanes and farm or industrial machinery. Unlike AF where size marked on the tool is the size of the bolt head,Whitworth and BSF spanners and sockets are marked with the size of the bolts shank diameter that they fit  Tools marked BSW or Whitworth,will also fit BSF (British Standard Fine) nuts or bolts and those made with Standard Cycle Thread.  BA are different again, BA tools are sized by a number 0 being the largest.


Sets of BSW sockets and spanners. D.I.Y range

 Sizes 1/8, 3/16, 1/4, 5/16,3/8, 7/16, 1/2 and 9/16 inch Whitworth. These combination spanners are the cheapest BSW spanners I sell,they are accurately made, fit well and are perfectly adequate for general use or as a starter tool kit,I have sold hundreds ...15..90p. Scroll down for professional quality BSW/BSF spanners.

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Thread gauge 52 blades,whitworth and metric threads ideal for identifying and sizing BSW threads avoid damage by using the wrong fixings.Accurate,represents good value for money and ideal for DIY use.4..00p can post to UK or overseas

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Professional quality BSW spanner sets

Six piece set of high quality Whitworth/BSF combination spanners made by Elora in Germany.Perfectly suitable for use in a commercial enviroment. Sizes are 3/16,1/4,5/16,3/8,7/16 and 1/2 inch whitworth. .Drop forged chrome vanadium steel, accurately made to DIN3113/ISO 3318 specification, will last a lifetime .Price 62..00p. Can post worldwide...  For larger picture of the Elora set click here. 


High quality Elora BSW BSF combination wrench set
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Eleven piece set of Elora 205 seriesBSW combination spanners,sizes1/8,3/16,1/4,5/16,3/8,7/16,1/2,9/16,5/8,11/16 and 3/4 inch BSW .Proper chrome vanadium steel,a high quality set of the most commonly encountered whitworth sizes on cars,motorcycles and ligh commercials etc.Price 158..00p can post anywhere but to order overseas please contact us for postage quote first.

set Elora whitworth combination spanners

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Whitworth Spanner sets,genuinely made in England

These high quality wrenches are made in England by Abingdon King Dick,a long established hand tool manufacturer.Open end and combination available. We have other sets not listed.please ask for details,prices etc

Set British Standard Whitworth combination spanners made in England.Five spanners sizes, 1/8,3/16,1/4,5/16 and 3/8 inch BSW. Chrome vanadium steel plated and polished,very good quality. 40.00.  Larger picture here

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High quality, combination seven piece spanner set in BSW/BSF  sizes 3/16,1/4,5/16,3/8,7/16,1/2 and 9/16 inch whitworth.Chrome vanadium steel chromed and polished . Please ask for details 75..00p or 80 50p inc post to UK..Larger picture here.

Quality set of English made BSW combination wrenches.

Set of three English made cranked whitworth ring spanners.Sizes are 3/16 x 1/4,5/15 x 3/8 and 7/16 x 1/2 .Nicely chromed,professional quality and will last for years,a decent set for a sensible price.37..00p. (Please note sold loose,no wallet)

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British made (Abingdon King Dick) Double ended cranked ring spanners.Sizes 3/16 x 1/4, 5/16 x 3/8, 7/16 x 1/2 and 9/16 x 5/8.Decent quality spanner set perfectly suitable for professional usage.59..00p (Also sold loose)

 Out of stock.

Similar to above.a set of double end cranked whitworth ring spanners 1/8 x 3/16,1/4 x 5/16,3/8 x 7/16 and 1/2 x 9/16 inch whitworth. Nicely made,good quality,polished chrome..54..00p .(Sold loose)

Deep cranked box end whitworth wrench set.

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Abingdon King Dick Open end BSW spanner set.British made Whitworth open end spanner set Sizes 1/8 x 3/16,1/4 x 5/16,3/8 x 7/16 and 1/2 x 9/16 inches whitworth.Well finished and accurately made. 33.00p or 37..00p inc post to UK.For larger picture click here

Open end BSW spanner set,English made.


Individual quality BSW combination spanners

Individual whitworth combination spanners from 1/8 to 3/4 inch whitworth are available by Elora and other makes.We have other makes in ring,combination and open end styles as well as some pre used or surplus stock. To order call for post cost.

1/8 inch BSW Elora combination spanner 8..00p. 

3/16 inch BSW Elora combination spanner 8..50p

1/4 inch BSW Elora combination spanner 9..00p

5/16 inch BSW Elora combination spanner 10..00p.

3/8 inch BSW Elora combination spanner 10..50p.

7/16 inch BSW Elora combination spanner 11..00p.

1/2 inch BSW Elora combination spanner 13..00p.

9/16 inch BSW Elora combination spanner 18..00p

5/8 inch BSW Elora combination spanner 20..00p

11/16 inch BSW Elora combination spanner 25..00p

3/4 inch BSW Elora combination spanner 30..00p


Individual spanners above 3/4 inch Whitworth are available in Elora and other high quality makes.We also stock used spanners and sockets in the larger sizes of whitworth and AF.  Please ask for prices and details of current stock.


BA ,spanners,spanner sets or wrenches .

Often found on old machinery BA (British Association) sockets and spanners are sized by number, 0 being the largest, 2BA is probably the most commonly used size.10 BA is probably the smallest most classic car enthusiasts will encounter,although model makers etc will use smaller..

Set of four BA combination spanner by Elora.Accurately made midget spanners in sizes 0 , 2 , 4 and 6 BA.twelve point (bi-hex) ring ends apart from the 6BA spanner which is six sided.Good quality proper chrome vanadium steel and will last a lifetime,28..00p

Larger picture of Elora BA combination wrench set  click here.

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Five piece (sizes 0, 1, 2, 3, 4, 5 ,6 and 8BA) open end BA wrench set in plastic wallet by Elora.Open end BA spanners are now becoming harder to source and these are proper forged items.BA fittings are found on older electrical items,magnetos,dynamos,control boxes and instruments etc.Priced at  29..00p  can post worldwide

Larger picture of Elora BA open ended click here.

BA open end spanner set

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Set of three combination spanners sizes 0. 2 and 4 BA. Made in England by King Dick.Good quality and nice,a somewhat old fashioned look to them which goes well with an older motorcycle or car.. 23..50p. Larger picture click here.

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 Set of open ended BA spanners. Made in England by Abingdon King Dick. Cover the sizes 0 to 10 BA inc. . Please note these are proper,forged spanners not pressed out of flat sheet. 26 the set of six. Larger picture click here.


I have various new BSW (Whitworth) BSF and BA box (tubular),combination spanners and sockets all priced to clear.

Some of the clearance sockets,spanners and other tools.

Taps and Dies.

Those working on older machinery are likely to come across various thread forms.The modern metric plus unf,unc,BA,whitworth,BSF,cycle thread,gas and others.I no longer supply these,but can direct you to someone who can,please ask.

Whitworth/BSF/Imperial/Metric spanner size conversion tables.
More comprehensive spanner/tool size charts and tables are here.
The markings on a  Whitworth or BSF socket indicate the thread size of the bolt not the head,for AF (Across the Flats) or SAE tools they indicate the width paralell sides of the nut or bolt head in fractions of an inch (imperial) or mm (metric) .

Note...During the war to save metal all bolt and nut sizes were made one size smaller. So pre 1940s tools still fit the later nuts and bolts and vice versa.

Whitworth / BSF and the metric or imperial (inch) Equivalent.
Imperial to Metric
Imperial (af).
A tubular box spanner or six sided (six point) socket the closest size upwards might be a solution in an emergency (ie) a 19mm spanner will probably fit a 3/4 inch af nut.These have greater tolerance than 12 sided sockets but there is always a risk of damage to socket and or the fastening.Impact sockets are almost always six sided (mono-hex).Six sided sockets are less liable to mark or damage brass,alloy or chromed fixings such as wheel or hub nuts.

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Hub nut sockets etc.
AF spanners and sockets


Home page, 
Footnotes...It's recorded at least one English motor manufacturer in the 30's-40's using imported engines with metric threads,ground the heads of nuts and bolts down so that mechanics whitworth spanners would fit.Some smaller or more specialised makers used whitworth fastenings for some years after everybody else had decided they were obsolete and went over to UNF/UNC or metric,so even without any previous owners swapping and repairing bits it's not unusual to find an assortment of fastenings on old (and not so old) cars. Land Rovers for example have a transmission design with parts of it dating to the 1930's so it should be no surprise to find sundry whitworth fastenings scattered round the gearboxes on early models and I'm told BA fittings are still found on modern JCBs.
This is why joining an owners club and talking to other classic car and motorbike enthusiasts makes sense.
I've seen on at least two web sites that some whitworth and SAE (UNF/UNC) or metric nuts and bolts are interchangeable.This is wrong and,if applied to critical components (suspension/brakes etc) downright dangerous.The thread rate (TPI or threads per inch) might be the same in some cases but the thread angles are different (55 degrees for whitworth and 60 for metric,UNF and UNC) resulting in loss of strength,thread stripping or fastenings coming undone in service.The use of a decent thread guage to identify threads on classic car and bike restoration is advised.(see our repair,servicing tool section for a range of imperial,metric and whitworth thread gauges).We still send imperial based tools all over the world,there are still old DeHavilland bi planes flying in New Zealand and Australia,we've sent whitworth and BA sockets and spanners to aviation museums from Australia to USA and railway engine enthusiasts from Darlington to Darjeeling.There are countless examples of British engineering well over fifty years old still working or being lovingly restored in the most unlikely places.