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Military Wire Thread Insert Marking Method

There are mainly two forms of military wire thread inserts marking methods, namely the specification method and the standard method. The military wire thread insert marking method actually expresses the three parameters of diameter, pitch and length of the wire thread insert. The diameter and length here refer to the installed internal thread diameter and the actual thread length formed after installation.

1.Specifications: A. FR (Normal Type) MD (Diameter) × P (Pitch) - nD (Diameter)

                   B. SL (Lock Type) MD (Diameter) × P (Pitch) - nD (Diameter)

2. Standard method: D (diameter) × P (pitch) × N (number of wire thread rings in free state)

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