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i Technical Information i

4.2. Dimension standards

Dimension standards assign proper taps outer dimensions (total length, thread length, shank diameter
and size of square) of nominal threads dimensions.

Symbols Description

Machine taps with reinforced shank for metric coarse and fine threads M3
DIN-371 ÷ M10 and for the threads UNC, UNF, BSW, BSF within the range of
nominal diameters 1/8” ÷ 3/8”

Machine taps with reduced shank diameter for metric coarse threads and
DIN-376
for the threads UNC and BSW

Machine taps with reduced shank diameter for metric fine threads and for
DIN-374
the threads UNF i BSF

DIN-5156 Machine taps with reduced shank diameter for the threads G, Rp and Rc

ISO-2284 Short hand and machine taps for pipe threads G, Rp and Rc

Short hand taps for metric coarse threads Norm is also suitable for UNC
DIN-352
and BSW threads

DIN-2181 Short hand taps for metric fine threadsNorm is also suitable for UNF and
BSF threads

DIN-5157 Short hand taps and machine taps for pipe threads G, Rp

Nakroje gwintowników ręcznych

Gwinty metryczne
Gwinty metryczne Gwinty rurowe

zwykłe, BSW, UNC drobnozwojne, G, Pg
Gwintownik BSF, UNF, UNEF Rowki
w komplecie wiórowe
L5 - długość nakroju w ilości zwojów gwintu k - kąt nakroju
L5 k L5 k L5 k

Nr 1 zdzierak 8P 5 8P 5 5P 7

Nr 2 pośredni 4P 10 - - - - Proste

11
Nr 3 wykańczak 2P 20 2P 20 2P 20

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