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  • GripLox™are integrated ribbed serrations under the head to provide superior vibration resistance compared to other commercial fasteners
  • Retains 89.1% of initial compressive load after 400 cycles on the Junkers Transverse Vibration Test
  • We now carry GripLox™ DIN6921 Frame Bolts (10.9) and Socket Flange Screws

GripLox are officially part of the NBS product lineup.  GripLoxare uniquely integrated ribbed serrations that provide maximum vibration resistance and compressive load retention.  This means that GripLox™ fasteners more securely lock in place in their applications and are an enhanced product offering to any fastener distributor.  All GripLox™ confirm to international specifications.

 Compressive Load


Put through the rigors of a Junkers Transverse Vibration test, GripLox™ serrated fasteners can retain 89.1% of its initial compressive load after 400 cycles, the highest out of any comparable commercial fasteners (i.e. frame bolts, serrated flange bolts, socket head cap screw and hex bolts with washer).


rib serrations

Product Offering


The GripLox™ fasteners are now available on our DIN6921 Frame Bolts (10.9, metric only) and our Socket Flange Screws (inch and metric).  GripLox(tm) fasteners come with a black phos and oil finish and are stocked in Los Angeles, CA and Chicago, IL for faster shipping and lead times.



Performance & Quality


With nearly 21% more compression retention than a socket cap + washer combination, GripLox™ serrated fasteners also provides you with peace of mind; the integrated flange is made from the same alloy steel and heat treated as well.

This elimanates not only material and dimensional variabilities, but helps reduce the number of washers needed for any given socket application.