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alan57
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What screw size was used for the Mills Escalator

Postby alan57 » Sun Jul 30, 2017 10:39 pm

Can any tell me the correct size of the small screw that held the Mills Coin escalator together.
There should be approx 12 small round headed slotted screws. The one I am working on only has 5!!, the rest are missing. Ive tried using a 5/32 BSW screw and its too small, and I've tried a 3/16 BSW screw that seems to be big, I don't want to force the screws and strip the thread.
I assume with the age of the machine being mid 1950's, that BSW screws were used?, there was a thread called BA, but not sure if they were used on this type of escalator.
I know one of the screws would have been countersunk, that one I have.

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JC
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Re: What screw size was used for the Mills Escalator

Postby JC » Sun Jul 30, 2017 11:28 pm

At the risk of stating the obvious, Mills bandits were American - so it's pretty unlikely they would have used British threads. At a guess (and it is only a guess) I'd suggest ANC or ANF.

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alan57
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Re: What screw size was used for the Mills Escalator

Postby alan57 » Mon Jul 31, 2017 6:59 am

May have been an obvious answer to you JC, but up until today, I had never heard of ANC or ANF.
Thanks for the information.
Does any one have any spare ANC or ANF screws they may want to sell.

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clubconsoles
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Re: What screw size was used for the Mills Escalator

Postby clubconsoles » Mon Jul 31, 2017 12:58 pm

google "fasteners & fixing suppliers" for your area, there will be a supplier in your town that will supply ANC & ANF nuts and bolts.

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treefrog
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Re: What screw size was used for the Mills Escalator

Postby treefrog » Mon Jul 31, 2017 1:10 pm

I would love to get hold of a template for testing screw sizes and types, the amount of times I have bought expensive bags of the damn things only to find the wrong size

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alan57
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Re: What screw size was used for the Mills Escalator

Postby alan57 » Mon Jul 31, 2017 1:38 pm

I agree with you Tom, a thread testing gauge would make life a lot more simpler

sutton
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Re: What screw size was used for the Mills Escalator

Postby sutton » Mon Jul 31, 2017 3:25 pm

UNC. is American course thread. UNF. Is American fine thread.

youngerap
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Re: What screw size was used for the Mills Escalator

Postby youngerap » Tue Aug 01, 2017 6:12 pm

treefrog wrote:
Mon Jul 31, 2017 1:10 pm
I would love to get hold of a template for testing screw sizes and types, the amount of times I have bought expensive bags of the damn things only to find the wrong size
They are out there Treefrog. For example:


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coppinpr
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Re: What screw size was used for the Mills Escalator

Postby coppinpr » Tue Aug 01, 2017 8:01 pm

you could buy a bag of each size and discard the wrong ones and it would be cheaper than that gauge :lol:

youngerap
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Re: What screw size was used for the Mills Escalator

Postby youngerap » Tue Aug 01, 2017 8:36 pm

I wasn't recommending it, Paul. Merely confirming that these things are out there and offering it as an example of one such product. At the other end of the scale, there is also a product costing less than £8. It is highly rated in the reviews, but looks a bit flimsy....


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