Gall-Free Nut

In industry, seizures are an expensive by-product caused by high friction, temperatures and side loads. HYTORC Gall Free Nut is the new anti-galling technology in a standard hex nut. The new Gall Free Nut thread design eliminates metal transfer that may occur in fasteners without lubrication and increased friction over extended time periods. This technology counters the galling effect of plastic deformation and micro-scale material transfer at the thread surfaces that occur during assembly.

  • Guaranteed operation even at high torque forces and temperatures
  • No need for thread lubricants
  • Standard thread size nuts are available in a variety of materials and coatings


More from HYTORC >>




Gall-Free Nut
Bolt Size (M) Hex Size (mm) M (mm) H (mm)
M20 30 18 18,8
M22 32 19,4 20,2
M24 36 21,5 22,3
M27 41 23,8 24,6
M30 46 25,6 26,4
M33 50 28,7 29,5
M36 55 31 31,8
M39 60 33,4 34,4
M42 65 34 35
M45 70 36 37
M48 75 38 39
M52 80 42 43
M56 85 45 46
M60 90 48 49
M64 95 51 52





HYTORC is the world’s leader in hydraulic and pneumatic torque wrench manufacturing. With over 50 years of experience focused entirely on developing the highest quality industrial bolting systems, HYTORC is the most trusted name in the industry. The latest product line features patented industry-firsts like hands-free operation, onboard documentation systems and industry-leading bolt load accuracy to reduce nut loosening and joint failure. Haitor has been cooperating with HYTORC throughout its whole lifetime. Visit manufacturer's website >>

Product Sheet

Product Sheet (in Finnish) [PDF]

You may also like…