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Thread: Bolt, Stud, and Torque Information

  1. #1
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    Bolt, Stud, and Torque Information

    Contains information about bolts, nuts, terminology, and torques for common fasteners on BMWs.
    Kurt -- Forum Administrator ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

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    Information

    Below are some links which provide common information about bolts and nuts:

    Bolt Joint Information

    Bolt Terminology

    Bolts, Nuts, Washers

    Removing Stuck Fasteners

    Fastener Size Reference Tables
    Kurt -- Forum Administrator ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

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    Common Torques

    Mike V. (#30064) has compiled a list of torque values for the R100/7. These values are applicable to a wide range of years and models of Airheads. Before using any values in this chart, be sure and consult additional sources such as BMW repair manuals and aftermarket manuals. In addition, ensure that your torque wrench is properly calibrated and you know how to use it. This chart is to be used at everyone’s own risk and is intended as a guide only.

    Note: most fasteners are torqued dry, that is no lubricant is used. However, some fasteners do require lubricant (eg, oil) or even loctite. Lubricants can increase the actual torque approximately 15% to 30%. Care must be taken in tightening a fastener where a lubricant is used to ensure that the actual torque in the joint is not exceeded. Torque is a measure of the sliding friction between two surfaces. Lubricants reducing this sliding friction so that a joint may be tightened more than desired.
    Attached Files Attached Files
    Kurt -- Forum Administrator ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

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    Metric Stud Explanation

    Alex has provided this file as an explanation of parameters associated with metric studs. Since these types of fastening systems are used on our bikes, this will serve as a good reference. It is from the Maryland Metrics company.
    Attached Files Attached Files
    Kurt -- Forum Administrator ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

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    Metric Bolt Markings and Torque Values

    Here's another refrence to bolt head markings. This will let you confirm the strength of the bolt being used in a particular situation.

    Bolt Head Markings
    Kurt -- Forum Administrator ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

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    More Metric Bolt Markings and Torque Values

    These are taken from the R65 repair manual.

    http://www.bmwr65.org/htdocs/yabbfil...ts/torques.pdf
    Kurt -- Forum Administrator ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

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    Another Table of Torque Values for Dry and Lubed Fasteners

    Kurt -- Forum Administrator ---> Resources and Links Thread <---
    '78 R100/7 & '69 R69S & '52 R25/2
    mine-ineye-deatheah-pielayah-jooa-kalayus. oolah-minane-hay-meeriah-kal-oyus-algay-a-thaykin', buddy!

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