m10 nut size A Style 1, heat treated fastener with a metric thread pitch. Nuts M16 and smaller are chamfered on the top and the bearing surface. nuts m20 and larger may be double chamfered, or have a washer face on one side and a chamfered surface on the opposite side.
Use specified bolts and nuts, tightening them to the torques specified in this section unless otherwise stated. Threaded portions and bearing surfaces should be dry. Where the property class differs between the nut and bolt (or stud bolt), use the tightening torque specified in the table for the bolt.
2. Bolt Tightening. Summarizes different tightening methods, and explains the relationship between bolts and torque, torque coefficient, how to determine tightening torque, tightening torque tolerance, and axial tension stability (tightening procedure).
Values calculated using industry accepted formula T = KDP where T = Torque, K = torque coefficient (dimensionless), D = nominal diameter (inches), P = bolt clamp load, lb. K values: waxed (e.g. pressure wax as supplied on high strength nuts) = .10, hot dip galvanized = .25, and plain non-plated bolts (as received) = .20.
We have a web site dedicated to training, have a look at www.bolting.info – for additional information on bolting technology. ACORN NUT A nut (so-called because of its shape) that has a domed top so that it prevents contact with the external thread.
2. Bolt Tightening table 1-3 table 1-4 Table 1-5 Figure 2-1 1. Torque Why do we tighten screws T The purpose of tightening screws is to fix one object to another object. We call this force to fix axial tension. apply suitable axial tension It is best to do axial tension control for tightening screw, but ac-tually it is difficult to measure.
motorcycle front mudguard section 3 – 3 14 Multistrada 1200 ABS / Multistrada 1200 S ABS – M.Y. 2010 – edition DRAFT Technical data Vibration damper to black box and bracket retaining nut M5 2 fit toothed washer between support and vibration damper
Look up the optimal torque for various combinations of bolt diameter, thread type, and grade or class. Caution. By using this Torque Calculator, you agree to the following terms and conditions: The following torque. Under/over tightening of fasteners can result in costly equipment failure and.
m3 bolt dimensions Screws Head Dimensions Chart – Inch This chart and guide covers machine and sheet metal screws with slotted and crossed recessed drives. head diameter, overall height of hand, across flats. Oval, round, flat, binding, pan, fillister, truss, hex. All dimensions are in inches.
Torque loss. Torque loss is inherent in any bolted joint. The combined effects of bolt relaxation, (approximately 10% during the first 24 hours after installation), gasket creep, vibration in the system, thermal expansion and elastic interaction during bolt tightening contribute to torque loss.
Bolt torque provides only an indirect approximation of material stress. It is estimated that only about 10% of the tightening torque actually results in useful bolt tensioning.
The behaviors of the joints have been also experimentally investigated under the influence of such factors as laminate fabrication , geometric parameters , bolt type , tightening torque.