| 1. Is this value for dry, unlubricated bolts?
Dry
2. What happens when we torque a bolt...what does it do to the bolt ?
Very complicated - it depends on the Modulus of Elasticity "E" of the bolt compared to the components that are being clamped.Basically the bolt stretches and the components are compressed a certain amount so that the forces are in equilibrium. The stretch vs compression clamps the two parts together.
3. Stainless bolts...can we torque them to the same value as steel ones ?
It depends on the "E" value - if they are the same then yes. If different then no.
4. what if we replace a fastener with a different grade ?
See above
5. when we use a torque wrench...where do you hold it to achieve the correct setting ?
Hold on the grip and apply force perpendicular to the shaft axis. Some pointer type wrenches have a hinge grip which results in the force being applied at a known distance from the bolt/nut.
Errrr...why do you ask?
RX |