LOCTITE 271 Mil Spec Low Viscosity High Strength, Red Threadlocker for fasteners up to 1″ (25 mm) in diameter. Mil Spec: Mil-S-46163A Type I Grade K. ASTM-D5363: Group 2 Class 2 Grade 1.

Item number 271
Thread Size
Color Red
mPa.s (cP)
Torque Break
16.9~34 / 150~300
Torque Prevail
22.6~40 / 200~335
Temp. Range (℃) -55℃ ~ 150℃
Cure Speed
(Fixture / Full Cure)
10 min. /24 hrs.
Oil Tolerant
Primers N or T
Specific Gravity  1.12
Agency Approvals ✽Mil-S-46163A Type I Grade K.
✽ASTM-D5363: Group 2 Class 2 Grade 1.

  1. With Loctite Primers, it can fill larger gaps.
  2. The screws fixed by the high-strength screw fixing agent can be removed by heating or by using a large torque.
  3. Before use, clean the next part with a rag or steel brush; if there is oil stain, be sure to remove the oil stain first.
  4. If it is a blind hole, it is more appropriate to apply glue to the hole.
  5. If the joint length is long, glue should be applied to the screw and the hole.

LOCTITE 271 Technical Data Sheet

Previous Page