HomeExplanation>Connected screw & spanner

Connected screw

Connected screw of the pressure gauge is parallel screw B class (JIS B 0202) for the tube or taper screw (JIS B 0203) for the tube, and the range of production has been decided depending on the size of the pressure gauge.
Size 50 60 75 100 150
Screw for tube G1/4・R1/4
  G3/8・R3/8
  G1/2・R1/2

Spanner

Shape in the part where the spanner is put is assumed two chamferings and the square or hex-heads, and the size of the width of two is shown in the table.
Width of two 12 14 17 19 22 24
Permissible dimensional deviation
ー0.43
-0.84
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