- Thread starter demented
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However, the following photos are very similar, in fact near identical to my old coil spring compressor, which when bought 30 odd years ago, wasn't considered cheap and isn't made in China.
It's the thread depicted in the photos which I'm trying to identify and source; as if a thread of this type is capable of compressing a coil springs and as my spring compressor is still functional after all these years and used many times by myself and by everyone who knows I've got one, then a threaded rod of this type will be more than capable for what I intend to use it for, although the thread in the photos doesn't look like the ACME type threads in the Scissor Jacks or Vices, hence my question on the forum.
It's the thread depicted in the photos which I'm trying to identify and source; as if a thread of this type is capable of compressing a coil springs and as my spring compressor is still functional after all these years and used many times by myself and by everyone who knows I've got one, then a threaded rod of this type will be more than capable for what I intend to use it for, although the thread in the photos doesn't look like the ACME type threads in the Scissor Jacks or Vices, hence my question on the forum.
What do you mean ?
Are the images too big ?
I only use the term ACME as that's how it appears to be described online.
I'm not specifically looking for an ACME thread.
The Trapezoidal thread appears to be the type used in the Vices and Scissor Jacks but doesn't look the same as the thread I'm attempting to identify and source of the coil spring compressor.
Hi demented. To obtain information about the threaded bars you have shown why not take an example to an engineering company and ask them to make measurements using a thread gauge. This should confirm all the details you need to source the material.
PhillipM
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Which is why we get posts of "there's no engineering anymore", or "there's a housing estate/shopping centre where XYZ Engineering once was" . . . because no-one considers the real value of a real bit of engineering, something well made, that will last when doing the job is is supposed to . . . but instead compares it to something that barely does the job it is supposed to, the one time it is used, churned out as cheap as possible in their thousands (the scale mentioned by Bob) for 2p.
67 quid for a metre of decently made, of known standard, from proper material, that will take the loading it is supposed to, is cheap.
Yeah, if need be that's what I'll do but I thought someone on the forum may have known.
I don't think it's a normal thread, it look so different, kind of more robust.
The threaded rod I've bought in the past looks different.
Same goes for Uk motorcycle industry but the Japanese imports had something British Motorcycles didn't.
I'm all for buying quality well made products, especially Made in Britain but manufacturers want cheap labour and high profits and more often than not, British made is much more expensive.
Northampton was once the Boot and Shoe capital of England but for such companies to remain profitable, manufacturing was switched to Asia and now, as far as I'm aware, therrs only one Boot n Shoe company which remains in Northampton and their products cost, what I regard as a fortune, especially when compared to what I use to pay.
Such companies fail, due to our throw away and replace culture.
What manufacturer wants to sell a customer one product that will last 30 years or more, when they can have it made much cheaper in Asia of a lesser quality which needs to be replaced every 2, 3 or 4 years.
Luckily, with the " Don't send it to landfill" campaigns; the tide may be changing for the better.
However, £67 per metre for Trapezoidal Threaded rod regardless of what it's made of and how well it's made; is just not cost effective for my needs.
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PhillipM
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Just looks like a normal coarse thread to me.
Yeah, I did mention in one of my replies, that I think it maybe a UNC thread.
Suppose due to age of my Spring Compressor, (it was actually bought in the late 80's) it could be a whitworth thread but I didn't think whitworth threads, nut & bolt heads were used anymore, other than for pipe threads and, I've seen new Spring Compressor with the thread.
Are you suggesting I buy a set of thread gauges, rather than ask on the forum ?
My hypothesis was, as a professional qualified tinkerer of cars, engines and associated components; by sight, I can recognise and correctly identify the socket/spanner size of a particular bolt head.
Therefore, I assumed forum members with more experience of threads of thread forming would be able to simply identify the thread type by sight, hence my question to the forum.
Also, I believed thread gauges only identified pitch and that Whitworth threads, other than for pipe fittings, were obsolete.
8ob
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You get a fair chunk of coarse thread with these for not a lot of money.
leachs.com
Eco Fixed Base Screw Jack - 500mm Adjustment
4 tonne capacity Adjustable Base Jack with 500mm Screw Adjustment. Thread 650mm x 38mm o/d, 500mm adjustment. Double wing nut. Shop now.
leachs.com
I'll bear that in mind.
However, I currently don't have access to my spring compressor to measure the thread and the images I've posted of the thread I'm attempting to identify, I found online.
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