Donate to Remove ads

Got a credit card? use our Credit Card & Finance Calculators

Thanks to johnstevens77,Bhoddhisatva,scotia,Anonymous,Cornytiv34, for Donating to support the site

4 x 40 5/16" bolts, small quantities

Does what it says on the tin
AleisterCrowley
Lemon Half
Posts: 6381
Joined: November 4th, 2016, 11:35 am
Has thanked: 1880 times
Been thanked: 2026 times

4 x 40 5/16" bolts, small quantities

#476645

Postby AleisterCrowley » January 27th, 2022, 6:44 pm

I need ONE of the above, pref pan head/Philips for my guitar - maybe two, for spares
They are available, but I'd end up paying 50p for the item and >£4 for the postage

Any chance of getting a small quantity on the High St? Wilko just have metric sizes, Screwfix dont seem to stock them.

redsturgeon
Lemon Half
Posts: 8912
Joined: November 4th, 2016, 9:06 am
Has thanked: 1309 times
Been thanked: 3667 times

Re: 4 x 40 5/16" bolts, small quantities

#476647

Postby redsturgeon » January 27th, 2022, 6:58 pm

Do you have a friendly local guitar shop?

John

Mike4
Lemon Half
Posts: 7084
Joined: November 24th, 2016, 3:29 am
Has thanked: 1637 times
Been thanked: 3793 times

Re: 4 x 40 5/16" bolts, small quantities

#476654

Postby Mike4 » January 27th, 2022, 7:23 pm

AleisterCrowley wrote:I need ONE of the above, pref pan head/Philips for my guitar - maybe two, for spares
They are available, but I'd end up paying 50p for the item and >£4 for the postage

Any chance of getting a small quantity on the High St? Wilko just have metric sizes, Screwfix dont seem to stock them.



"4 x 40 5/16" bolts"

This is reminding me of the way 50mm x 100mm PAR timber gets sold in 10ft lengths.

If you find them, I bet they'll be priced in £sd!

Mike4
Lemon Half
Posts: 7084
Joined: November 24th, 2016, 3:29 am
Has thanked: 1637 times
Been thanked: 3793 times

Re: 4 x 40 5/16" bolts, small quantities

#476655

Postby Mike4 » January 27th, 2022, 7:27 pm

But getting to the point, there are several different 5/16" threads it could be. Whitworth, BSF, UNF, UNC.

Why do you think it is an imperial thread? Is it an American geetar or very old? 5/16" is near as dammit 8mm, so more likely to be an M8 thread I'd suggest.

AleisterCrowley
Lemon Half
Posts: 6381
Joined: November 4th, 2016, 11:35 am
Has thanked: 1880 times
Been thanked: 2026 times

Re: 4 x 40 5/16" bolts, small quantities

#476669

Postby AleisterCrowley » January 27th, 2022, 7:55 pm

It's an American standard I think #4, 40 per inch is the thread spacing ??
I should have stated 4-40 not 4 x 40 ???
And dammit , it's 5/8" length not 5/16"
Here they are (I need silver finish, and only ONE)
https://www.accu.co.uk/en/imperial-phil ... -5-8-A2-BL

Mike4
Lemon Half
Posts: 7084
Joined: November 24th, 2016, 3:29 am
Has thanked: 1637 times
Been thanked: 3793 times

Re: 4 x 40 5/16" bolts, small quantities

#476673

Postby Mike4 » January 27th, 2022, 8:03 pm

Blimey that's a substantial lump of engineering!

If they will sell you one for 50p, I'm not surprised its £4 p&p as it probably weighs about 100g! (4oz.)

I'd have their arm off at that price if I were you. OR, if you resent paying £4 p&p, you could drive up to Huddersfield and collect one and pay just the 50p... ;)

jfgw
Lemon Quarter
Posts: 2539
Joined: November 4th, 2016, 3:36 pm
Has thanked: 1097 times
Been thanked: 1146 times

Re: 4 x 40 5/16" bolts, small quantities

#476675

Postby jfgw » January 27th, 2022, 8:11 pm

No.4-40 is UNC. It is 0.112" (2.845mm) diameter. The 40 is the pitch. I would be surprised if you could get these in the high street unless it is a specialist who uses them (such as a guitar shop, as suggested by redsturgeon). Even a traditional ironmonger's with some very old stock are more likely to have Whitworth screws than UNC.

4-40 is the screw thread used on the retaining screws on some types of connector such as the "D" series connectors used for VGA and DVI ports on computers (and the serial and parallel ports if you have an old PC).


Julian F. G. W.

RedSnapper
2 Lemon pips
Posts: 145
Joined: November 8th, 2016, 8:32 am
Has thanked: 24 times
Been thanked: 38 times

Re: 4 x 40 5/16" bolts, small quantities

#476679

Postby RedSnapper » January 27th, 2022, 8:21 pm


jfgw
Lemon Quarter
Posts: 2539
Joined: November 4th, 2016, 3:36 pm
Has thanked: 1097 times
Been thanked: 1146 times

Re: 4 x 40 5/16" bolts, small quantities

#476680

Postby jfgw » January 27th, 2022, 8:28 pm

I normally check eBay for unusual stuff like this.

You can get 20 for £3.99 but they are slotted, https://www.ebay.co.uk/itm/113375627452 ... SwN5hb7V6D

100 Stainless for £5.94 from China if you are not in a hurry, https://www.ebay.co.uk/itm/353748727711?hash=item525d11379f:g:EYoAAOSw1~9hfJTC. You probably don't need that many spares, though.


Julian F. G. W.


Edit: I have just seen RedSnapper's reply.

AleisterCrowley
Lemon Half
Posts: 6381
Joined: November 4th, 2016, 11:35 am
Has thanked: 1880 times
Been thanked: 2026 times

Re: 4 x 40 5/16" bolts, small quantities

#476689

Postby AleisterCrowley » January 27th, 2022, 8:39 pm

redsturgeon wrote:Do you have a friendly local guitar shop?

John


I tried - they only had the longer ones (4-40 x 3/4, for Telecasters)
3/4" blocks the string hole on Strats

AleisterCrowley
Lemon Half
Posts: 6381
Joined: November 4th, 2016, 11:35 am
Has thanked: 1880 times
Been thanked: 2026 times

Re: 4 x 40 5/16" bolts, small quantities

#476693

Postby AleisterCrowley » January 27th, 2022, 8:54 pm

RedSnapper wrote:https://www.spaldingfasteners.co.uk/4-40-unc-a2-stainless-steel-pan-phillips-head-machine-screws/

Pack of 5 inc p&p is £1.92


Thanks!
They got my business - < £2.50 for 10 (I may sell some to local guitar shop at a massive mark-up) :D

9873210
Lemon Slice
Posts: 986
Joined: December 9th, 2016, 6:44 am
Has thanked: 226 times
Been thanked: 296 times

Re: 4 x 40 5/16" bolts, small quantities

#476696

Postby 9873210 » January 27th, 2022, 9:12 pm

You should know that bolts come in different grades.

On something like a guitar I'd expect a smaller bolt for esthetics. A 5/16" may be under more stress than you realize. Make sure you get the right grade, not the cheapest.

AleisterCrowley
Lemon Half
Posts: 6381
Joined: November 4th, 2016, 11:35 am
Has thanked: 1880 times
Been thanked: 2026 times

Re: 4 x 40 5/16" bolts, small quantities

#476699

Postby AleisterCrowley » January 27th, 2022, 9:23 pm

It's the intonation bolt/screw* on the bridge so not under much stress
And I don't really care what it looks like, as my old Strat is a bit of a mongrel anyway (90s Japanese Squier and 90s Silver Series electrics)


*They seem to call them screws, but a screw to me is something that cuts it's own thread..like a woodscrew

GrahamPlatt
Lemon Quarter
Posts: 2059
Joined: November 4th, 2016, 9:40 am
Has thanked: 1032 times
Been thanked: 823 times

Re: 4 x 40 5/16" bolts, small quantities

#476704

Postby GrahamPlatt » January 27th, 2022, 9:43 pm

AleisterCrowley wrote:*They seem to call them screws, but a screw to me is something that cuts it's own thread..like a woodscrew


Wood screws are tapered, and can have a variable thread pitch. I’ve always understood that these, with a parallel barrel, and unvarying pitch are called “machine screws”

AleisterCrowley
Lemon Half
Posts: 6381
Joined: November 4th, 2016, 11:35 am
Has thanked: 1880 times
Been thanked: 2026 times

Re: 4 x 40 5/16" bolts, small quantities

#476706

Postby AleisterCrowley » January 27th, 2022, 9:48 pm

To me , they're bolts... :)

quelquod
Lemon Quarter
Posts: 1018
Joined: November 5th, 2016, 12:26 pm
Has thanked: 196 times
Been thanked: 189 times

Re: 4 x 40 5/16" bolts, small quantities

#476708

Postby quelquod » January 27th, 2022, 9:56 pm

AleisterCrowley wrote:It's the intonation bolt/screw* on the bridge so not under much stress
And I don't really care what it looks like, as my old Strat is a bit of a mongrel anyway (90s Japanese Squier and 90s Silver Series electrics)


*They seem to call them screws, but a screw to me is something that cuts it's own thread..like a woodscrew


A “machine” or “set” screw has a parallel regular thread like a bolt. There’s endless different views as to the difference between a bolt and a set screw but to me a bolt is something that gets a nut or similar on the threaded end and is ideally only part-threaded whilst a set screw is tightened all the way into a pre threaded part and (naturally) is threaded over it’s length. YMMV.

servodude
Lemon Half
Posts: 8271
Joined: November 8th, 2016, 5:56 am
Has thanked: 4435 times
Been thanked: 3564 times

Re: 4 x 40 5/16" bolts, small quantities

#476710

Postby servodude » January 27th, 2022, 9:59 pm

AleisterCrowley wrote:To me, they're bolts...


Heretic! (Though if you want you can refer to the strings as wires )

I'd post you one but I dare say you'd never see it (I'm still waiting for a switch tip I had dropped to my mum's)

I am however going to suggest that you consider buying a full set of saddles
something like: https://www.ebay.co.uk/itm/384368676134
or whatever style you prefer
- you'll get the screw you need and the bits that go with it and none of it will be gummed up with dead flesh and spilt lager
- and probably for the same amount of cash as finding a single

you also get to start your box of spare guitar bits
- and next time you just lift one from there

- sd

csearle
Lemon Quarter
Posts: 4764
Joined: November 4th, 2016, 2:24 pm
Has thanked: 4814 times
Been thanked: 2083 times

Re: 4 x 40 5/16" bolts, small quantities

#476805

Postby csearle » January 28th, 2022, 10:35 am

AleisterCrowley wrote:To me , they're bolts... :)
An age ago, at the Marconi Apprentices Training Centre some mechanical type took great delight in pointing out that a bolt has a length of blank shaft between the head and the thread, whereas the thread of a screw goes right up to the head.

As is so often the case when taught something in such a setting I have adopted it wholeheartedly and will take it with me to the grave.

Chris

servodude
Lemon Half
Posts: 8271
Joined: November 8th, 2016, 5:56 am
Has thanked: 4435 times
Been thanked: 3564 times

Re: 4 x 40 5/16" bolts, small quantities

#476809

Postby servodude » January 28th, 2022, 10:48 am

csearle wrote:
AleisterCrowley wrote:To me , they're bolts... :)
An age ago, at the Marconi Apprentices Training Centre some mechanical type took great delight in pointing out that a bolt has a length of blank shaft between the head and the thread, whereas the thread of a screw goes right up to the head.

As is so often the case when taught something in such a setting I have adopted it wholeheartedly and will take it with me to the grave.

Chris


the screw vs bolt question is tricky

There's certainly self tapping wood screws that are partially threaded - so it's not that bare bit per se!

And if a machine screw is threaded up to the head and that head can't be turned with a screwdriver (be it slot, posi, Phillips, torx, Robertson, hex, whatever) it really must be a bolt?

But otherwise - yes
- machine screws with a bare bit would be bolts in my book

-sd

AleisterCrowley
Lemon Half
Posts: 6381
Joined: November 4th, 2016, 11:35 am
Has thanked: 1880 times
Been thanked: 2026 times

Re: 4 x 40 5/16" bolts, small quantities

#476812

Postby AleisterCrowley » January 28th, 2022, 11:08 am

Bolted and screwed mean very different things :)


Return to “Building and DIY”

Who is online

Users browsing this forum: No registered users and 10 guests