TRILOBULAR TYPE B THREADFORMING FOR USE IN PLASTIC AND METAL

Technical Data

B Type trilobular thread form

Screw diameter Pitch Incomplete thread under head Thread angle No. of Phillips recess c Min c Max d Min d Max Min Tensile Breaking Torque
M2 0.4 1.6 Max 2 x pitch 60 1.96 2.04 1.88 1.96 4.1 kgf cms
( M2.3 ) 0.4 2 Max 2 x pitch 60 2.26 2.34 2.18 2.26 6.1 kgf cms
( M2.6 ) 0.4 2.3 Max 2 x pitch 60 2.56 2.64 2.47 2.55 9.9 kgf cms
M3 0.4 2.7 Max 2 x pitch 60 2.95 3.05 2.85 2.95 15 kgf cms
( M3.5 ) 0.4 3.2 Max 2 x pitch 60 3.45 3.55 3.34 3.46 25 kgf cms
M4 0.4 3.6 Max 2 x pitch 60 3.95 4.05 3.81 3.91 35 kgf cms
M5 0.4 4 Max 2 x pitch 60 4.94 5.06 4.78 4.9 66 kgf cms
M6 0.4 4.6 Max 2 x pitch 60 5.92 6.08 5.72 5.88 117 kgf cms
M8 0.4 5.3 Max 2 x pitch 60 7.9 8.1 7.65 7.85 283 kgf cms

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