MB Driller


MB_DRILLER_WITH_BONDED_WASHER.gif (10819 bytes)Our MB Drillers™ have high hex heads that are more stable in the driver, reducing wobble.  Clean hex corners eliminate rounding off and sure clamping.

MB Drillers™ have smooth thread forming transition into full threads that reduces installation torque and optimising pull out resistence.

MB Drillers™ have an extended unthreaded pilot section that permits drilling to be completed before tapping, even in double purlins.
Points are size to drill holes appropriate to material thickness to optimize holding power.


 

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Fastener finish is critical to installation performance and corrosion resistance.  Platings and coatings provide lubricity during drilling and tapping.







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Using a torque transducer screwing device with computerized recording, the torque dynamics of a MB Driller is measured every 1/1000th of a       second.  The chart to the left illustrates the low torque required for MB Drillers during drilling.  High torque developed during the tapping process results in consistently high clamp loads.

 

 

 

 

 

 

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