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Special Purpose

Bicycle Thread (Fg)

Threads defined for one application, such as cable glands, tyre valves, bicycles and sewing machines.

Standard
DIN 79012
Flank angle
60°
Sizes listed
10
Range
Fg 2 – Fg 34.8
Profile shape (schematic, not to scale)

Thread Size mmMajor Diameter mmTapping Drill Size mmTPIPitch mm
Fg 22.0961.613560.454
Fg 2.32.2991.816560.454
Fg 2.62.6042.121560.454
Fg 6.356.3505.310260.977
Fg 7.97.9386.898260.977
Fg 9.59.5258.485260.977
Fg 14.314.28812.934201.270
Fg 25.425.40024.272241.058
Fg 32.832.76631.638241.058
Fg 34.834.79833.670241.058
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Related Standards

PG Conduit Thread (Panzergewinde) DIN 40430 44 rows · Pg 7 – Pg 48 Tyre Valve Thread (Vg) DIN 7756 7 rows · Vg 5 – Vg 12 Sewing Machine Thread Nähnorm 100 16 rows · 5/64" – 9/16"

Reference values only. Verify against the current edition of the governing standard before use in production drawings or manufacturing. Provided by Micro Components as a free engineering resource.