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Eisen SRM Series Limit Screw Gauge

Made in Japan
Manufacturer: Eisen Co., Ltd.
Model: SRM  Series

Metric thread ring gauge (steel thread gauge)

About the Series

SRM Series

Series Details

Example of notation

Metric thread nominal and pitch list

Thread Nominal Regular pitch Fine pitch Thread Nominal Regular pitch Fine pitch
M1 0.25 0.2 M27 3 *2 1.5 *1
M1.1 *0.25 *0.2 M28 2 1.5 1 ▲0.5
M1.2 0.25 0.2 M30 3.5 *3 2 1.5 1 ▲0.5
M1.4 0.3 0.2 M32 2 1.5 ▲1 ▲0.5
M1.6 *0.35 *0.2 M33 3.5 *3 *2 1.5
M1.7 ▽0.35 ▲0.2 M34 ▲2 ▲1.5 ▲1 ▲0.5
M1.8 *0.35 *0.2 M35 1.5
M2 0.4 0.25 M36 Four *3 2 1.5 ▲1 ▲0.5
M2.2 *0.45 *0.25 M38 ▲2 1.5 ▲1 ▲0.5
M2.3 ▽0.4 ▲0.25 M39 Four *3 *2 *1.5
M2.5 *0.45 *0.35 M40 *3 2 1.5 ▲1
M2.6 ▽0.45 ▲0.35 M42 4.5 *Four *3 2 1.5 ▲1
M3 *0.5 M45 4.5 *Four *3 2 1.5 ▲1
M3 ▲0.6 0.35 M48 Five *Four *3 2 1.5 ▲1
M3.5 0.6 0.35 M50 *3 2 1.5 ▲1
M4 *0.7 M52 *Five *Four *3 2 1.5
M4 ▲0.75 0.5 M55 *Four *3 2 1.5
M4.5 0.75 0.5 M56 *5.5 *Four *3 *2 *1.5
M5 *0.8 M58 *Four *3 2 1.5
M5 ▲0.9 0.5 M60 *5.5 *Four *3 2 1.5
M5.5 ▲0.9 0.5 M62 *Four *3 2 1.5
M6 1 0.75 ▲0.5 M64 *6 *Four *3 *2 *1.5
M7 1 0.75 ▲0.5 M65 *Four *3 2 1.5
M8 1.25 1 0.75 ▲0.5 M68 *6 *Four *3 2 1.5
M9 1.25 1 0.75 ▲0.5 M70 *6 *Four *3 2 1.5
M10 1.5 1.25 1 *0.75 ▲0.5 M72 *6 *Four *3 2 1.5
M11 *1.5 ▲1.25 1 *0.75 ▲0.5 M75 *Four *3 2 1.5
M12 1.75 1.5 *1.25 1 ▲0.5 M76 *6 *Four *3 *2 *1.5
M13 ▲1.5 ▲1 ▲0.5 M78 2 ▲1.5
M14 2 1.5 *1.25 1 ▲0.5 M80 *6 *Four *3 2 1.5
M15 1.5 1 ▲0.5 M82 2 ▲1.5
M16 2 1.5 1 ▲0.5 M85 *6 *Four *3 2 ▲1.5
M17 *1.5 *1 M88 ▲2 ▲1.5
M18 2.5 2 1.5 1 ▲0.5 M90 *6 *Four *3 2 ▲1.5
M20 2.5 2 1.5 1 ▲0.5 M92 ▲2 ▲1.5
M22 2.5 2 1.5 1 ▲0.5 M95 *6 *Four *3 2 ▲1.5
M24 3 2 1.5 1 ▲0.5 M98 ▲2 ▲1.5
M25 2 1.5 1 ▲0.5 M100 *6 *Four *3 2 ▲1.5
M26 ▲2 1.5 ▲1 ▲0.5
  • Note) *: Adopted by ISO ▲: Abolished in March 1968 (old JIS) ▽: Abolished in June 1997 (old JIS)

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