Loctite 222Ms Threadlocker Purple Low Strength / Small Screw

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TOP PICK Mil Spec Low strength removable purple threadlocker for small fasteners under ¼”.

LOCTITE® 222MS™ Low Strength, Small Screw, Mil-Spec Purple Threadlocker is ideal for fastener diameters of 1/4" (6mm) and smaller. Its controlled lubricity allows for accurate clamp loads. Parts can be separated using hand tools. Mil Spec: Mil-S-46163A Type II Grade M. NSF P1 Certified. Applications include adjustment screws, countersunk head screws, and set screws; on collars, pulleys, tool holders and controllers. Also for low strength metals such as aluminum or brass.
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  • Ideal for low-strength threadlocking of adjusting screws, countersunk head screws and set screws
  • Prevents loosening on vibrating assemblies, e.g. pumps, gear boxes or presses
  • Permits disassembly with hand tools
  • Especially suited to small thread sizes
  • P1 NSF Reg. No.: 123002


  • Agency Approvals / Specifications: CFIA Listed, MIL-S-46163A for existing designs, NSF P1
  • Full Cure Temperature: 77 °F
  • Temperature: -65 - 300 °F
  • Thread Size (Maximum): R1/4"
  • Torque Break on M10 Steel: 53 in./lb.
  • Torque Prevail on M10 Steel: 30 in./lb.
  • Viscosity: 1200 - 5000
  • Viscosity Temperature: 77 °F



Please note, Aircraft Spruce's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

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