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Nut and Bolt sets

Waitey

Waitey

ClioSport Club Member
Car  Alpina D3, AC Cobra
Anyone know a good suppler of these.

Looking for something that covers M5 to M10 in a range of lengths?
 
RS components do sets but they can be pricey.

Personally, I’ve a number of compartmented storage trays which I have built up over time with common sizes. Google your nearest fastening supplier, or alternatively there are sellers on eBay who do 10,50 etc of specific sizes.
 
Waitey said:
Lunchtime?
Click to expand...
Aye x


ilovewilly said:
RS components do sets but they can be pricey.

Personally, I’ve a number of compartmented storage trays which I have built up over time with common sizes. Google your nearest fastening supplier, or alternatively there are sellers on eBay who do 10,50 etc of specific sizes.
Click to expand...
Can tell someone has brass if you're suggesting RS 😂
 
I use https://www.accu.co.uk a lot. They aren't the cheapest normally double the price of other suppliers but their website and range is epic and they have fast delivery.

I've made an M3, M4 and M6 box using stuff from them. I buy really useful boxes with divider trays and just fill each compartment up with the most common lengths/head styles.
 
Screwfix do sets of nuts and bolts in a tray but can't comment on quality as never used. Something Iv always meant to get myself but I always seem to get by without purchasing a set
 
15kg of stainless is here!

5216970C-5A85-45D1-8B10-A4040B415A83.jpeg
 
Turbo steve said:
We buy a lot from these people

Fixings and Fasteners UK Suppliers | Kayfast Ltd | Largest Range In Stock – Same Day Dispatch

Shop quality fixings, fasteners, screws, and stainless steel nuts and bolts at Kayfast. Huge range in stock at great value, with next-day delivery. Order now for reliable service.
www.kayfast.co.uk www.kayfast.co.uk
Click to expand...

Yea they're great, not far from me.

They also do the yellow zinc coated ones, which some manufactures use from time to time. Good if your engine is a mish-mash of random bolts and you want to make it look a little tidier.

01250.jpg
 
Be careful of using stainless bolts on carbon steel parts, can often cause further issues due to galvanic corrosion and dissimilar metals. Especially in a corrosive atmosphere or where theres lots of moisture / salty roads
 
Mertin said:
Be careful of using stainless bolts on carbon steel parts, can often cause further issues due to galvanic corrosion and dissimilar metals. Especially in a corrosive atmosphere or where theres lots of moisture / salty roads
Click to expand...
Not sure if all the stuff purchased is for the car as stainless has differing structural properties [tensile wise] to steel so for [some] structural elements is not suitable.
 
Hilux said:
Not sure if all the stuff purchased is for the car as stainless has differing structural properties [tensile wise] to steel so for [some] structural elements is not suitable.
Click to expand...
Almost all the stainless steel fasteners on sale will be of one if two grades; A304 ( also known as A2) and A316 (aka A4). Their strengths are very similar but A316 has better corrosion resistance, particularly in salty environments.
Neither of these grades is equivalent to a high-tensile carbon steel ; Renault often specify a Grade 10.9 fastener, which has more than twice the strength of any SS item. In practice this means that an SS fastener may stretch when being torque-tightened or will loosen in service. For lightly loaded applications SS fasteners are fine but for highly-load parts like some engine, brake of or suspension parts, they are not suitable.
An additional problem is that when both bolt and nut are SS they may be prone to ‘galling’ , which means that the threads will strip when you attempt to loosen them. In most but not all cases, prior application of Loctite will prevent this.
It’s a bit of a minefield
 
Hillclimb182 said:
Neither of these grades is equivalent to a high-tensile carbon steel ; Renault often specify a Grade 10.9 fastener, which has more than twice the strength of any SS item. In practice this means that an SS fastener may stretch when being torque-tightened or will loosen in service. For lightly loaded applications SS fasteners are fine but for highly-load parts like some engine, brake of or suspension parts, they are not suitable.
Click to expand...


Well put (y) - thats exactly what I meant. Also, even though austenitic st/steel grades have general corrosion resistance they are susceptible to damage by stress corrosion cracking in corrosive atmospheres especially between dissimilar metals [salty water/steel/aluminium] unless fully and properly separated/sealed.
 
Alot of good points made, quite often a misconception that stainless is best
 
Waitey said:
Anyone know a good suppler of these.

Looking for something that covers M5 to M10 in a range of lengths?
Click to expand...

Me... Or at least the company I work for. Not sure if I'm allowed to say any more as I'm not a forum sponsor etc.
 
Hillclimb182 said:
Almost all the stainless steel fasteners on sale will be of one if two grades; A304 ( also known as A2) and A316 (aka A4). Their strengths are very similar but A316 has better corrosion resistance, particularly in salty environments.
Neither of these grades is equivalent to a high-tensile carbon steel ; Renault often specify a Grade 10.9 fastener, which has more than twice the strength of any SS item. In practice this means that an SS fastener may stretch when being torque-tightened or will loosen in service. For lightly loaded applications SS fasteners are fine but for highly-load parts like some engine, brake of or suspension parts, they are not suitable.
An additional problem is that when both bolt and nut are SS they may be prone to ‘galling’ , which means that the threads will strip when you attempt to loosen them. In most but not all cases, prior application of Loctite will prevent this.
It’s a bit of a minefield
Click to expand...

This is important. Do not use stainless bolts on suspension, steering or load bearing items, you need to stick to 10.9 carbon steel. Stainless is no stronger than normal 8.8 steel bolts. 10.9's if plated are fairly resistant to corrosion so get those.

If it helps add weight to the above I studied a degree in materials science, so please do take note of what @Hillclimb182 said.
 
Hilux said:
Not sure if all the stuff purchased is for the car as stainless has differing structural properties [tensile wise] to steel so for [some] structural elements is not suitable.
Click to expand...
Good point as well as @Hillclimb182 says.

All my Stainless fixings are for engine bay dress purposes and those random little things that crop up.
 
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