Nylok® Red Nylon Torq-Patch®

Prevailing Torque Locking Element

NYLOK® Red Nylon TORQ-PATCH® is a self-locking element comprised of nylon permanently bonded onto the threads of a fastener. When the NYLOK® Red Nylon TORQ-PATCH® is engaged, it creates a wedge between the fastener and mating part compressing the nylon and creating metal to metal contact opposite the patch. This metal to metal contact results in a positive resistance to vibration and loosening. Since nylon has great memory characteristics, this locking element can be reused several times.


  • Reusable/adjustable
  • Exceptional vibration resistance
  • Resistant to lubricants, fuel, hydraulic fluids and most commercial solvents
  • Can be applied to any size or thread configuration of a fastener
  • Bonds to a broad range of fastener finishes
  • Complies with or exceeds IFI, DIN and major OEM specifications
  • Provides a seal for threads
  • Parts are ready for assembly
  • Precise thread coverage on every part
  • Can be applied on external and internal threaded fasteners
  • Is not affected by high humidity conditions
  • Environmentally friendly/non-toxic
  • 180° (standard) or 360° (optional) radial coverage
  • Torque can be adjusted to meet specific applications
  • Cost effective
  • No metal removal to reduce fastener strength or performance
  • Color: blue/red (special colors available upon request)
  • Dry Wedge - Immediate locking
  • Temperature Range -56° C (-70° F) to +121° C (250° F)
  • Shelf-Life indefinite
Performance Results
  • Prevailing-On Torque (POT) 5.0 – 10.0 Nm
  • First Removal Prevailing-Off Torque (without preload) min 2.5 – 5.0 Nm
  • Fifth Removal Prevailing-Off Torque (POT) min 1.8 – 2.8 Nm
Manufacturing Specifications
    • MIL - DTL - 18240F
    • NAS1283
    • NASM15981
    • NASM25027

  • IFI
    • IFI - 100/107
    • IFI - 124
    • IFI - 524

  • DIN
    • DIN 267 PART 28
  • Electronics
  • Defense
  • Automotive
  • Aerospace
Nylok® Red Nylon Torq-Patch®

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