lug nut torque value

[IcEman]

anybody knows the torque value for a tire lug nut? ride is 97 lancer

Thanks

[Ungas]

Do you really need to know the excat torque for those lug nuts?

Based from my experience, hand torqued tightness will be enough especially for a light vehicle such as yours. Do not over torque by stepping on the wrench itself, you'll just have a hard time loosening it when the need arises. Lug nuts do tighten a bit more after being driven by few kilometers or so.

Btw, I also did used to have a smaller tube about a foot long to help tighten the lugs, I ended up with a loose threaded lug and some bent ones.

[rlp1099]

depnde yan sa thread size ata which have equivalents sa Nm (newton meter) and corresponding Ft-lbs


Pajero values for example are-

tightening torque: 8-9kg-m
(57-65ft-lbs/80-90-Nm

[groucho]

And don't forget to apply anti-seize. It's very helpful.

[jeff]

anti-seize?

[badkuk]

i once broke off a lug nut when i used the typical stomp-on-the-tire-iron routine -- though imho i think me sira na talaga ung nut

[yebo]

"anti-seize compound" is a lubricant containing copper (e.g., brand name "copa-slip", "never-seize") or molybdenum (e.g., brand name "molycote") that is applied on bolt threads to prevent seizing of the nut to the bolt. the bolt and nut (or any threaded connection for that matter) will hold the applied torque but will not rust, spot weld, or react physically or chemically such that they can be loosened later with ease.

kung wala ka makitang copa-slip or molycote, pwede na din lagyan na lang ng ordinary grease yung threads before tightening.

NOTE: not all threaded connections are supposed to be lubricated. examples are bolts where the nuts have nylon ends (or what is called "nyloc" nuts), the locking action of the nylon part will be lost if you lubricate the threads. another example is if the bolts are 1-time use only and are supposed to be replaced when loosened, such as SOME types of connecting rod bolts. you will know these bolts since they usually come enclosed in overhauling kits. pag may kasamang bolts yung kit, that means dapat palitan yung bolts na yun. if you want to be sure which ones, get a service manual for your engine and look for some bolts that are marked "DO NOT LUBRICATE". those bolts and nuts NOT so marked in the manual can be lubricated (and they usually are).

[IcEman]

thanks for the rply peeps, i also saw sa net a generic torque value for lug nuts depending on sizes for a 10 mm fastener the standard torque is between 45-55 ft-lbs and since rlp recomended a value of 57 i think 55 is ok.

as for lubricating the nut i tought of that too but if we apply any lubrication we have to compensate the amount of torque but i don't know the multiplying factor for common grease so i elected not to apply any.

IMHO measuring the torque value of a fastener system is important you can not just use the "talyer" system especially for items where safety is important, when you apply the correct torque value you can be assured that all the fasteners have the same torque values and that you will not strip the threads if over torqued or like what badkuk experienced a sheared bolt. As an added info, a hand tighted fastener, as the term implies, is one using the hand to tighten the bolt or nut with out using any tool ('',)

[groucho]

Originally posted by IcEman
i also saw sa net a generic torque value for lug nuts depending on sizes for a 10 mm fastener the standard torque is between 45-55 ft-lbs and since rlp recomended a value of 57 i think 55 is ok.

IcEman, share mo naman 'yung URL for those generic torque values. They may prove to be helpful for many of us.

Thanks.

[khayib]

Here's the link regarding the Lug nuts: (just click the link)

<a href="http://www.tirerack.com/wheels/tech/torque.htm" target="_blank"> http://www.tirerack.com/wheels/tech/torque.htm