We specialize in very small micro setscrews (mini set screws) from M1 to M2.5.
  Nominal diameters of our very small micro set screws (mini set screws) are M1, M1.2, M1.4, M1.6, M1.7, M2, M2.3, M2.5, and M3. Lengths are 1.0mm, 1.1mm, 1.2mm, 1.3mm, 1.4mm, 1.5mm, 1.6mm, 1.7mm, 1.8mm, 2.0mm, 2.5mm, 3.0mm, 4.0mm, 5.0mm and 6.0mm. Pointed tip shapes of our very small micro set screws (mini set screws) are "flat point", "cone point" and "oval point / round point". Materials are steel or stainless steel.   SAIDA Manufacturing Co. Ltd.
197-0831
292 Shimoyotsugi Akiruno-city Tokyo JAPAN
(FAX No.)+81 42-559-0138
 
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Nickel Chrome Molybdenum Steel

JIS (Japanese Industrial Standard)
AISI (American Iron and Steel Institute)
ISO (International Organization for Standardization)


International standards of Nickel Chrome Molybdenum Steels
Std. Designation CHEMICAL COMPOSITION ( % )
C Si Mn P S Ni Cr Mo
JIS
G 4053
SNCM240 0.38
~0.43
0.15
~0.35
0.70
~1.00
0.030
MIN
0.030
MIN
0.40
~0.70
0.40
~0.60
0.15
~0.30
AISI
ISS 209
8640 0.38
~0.43
0.15
~0.35
0.75
~1.00
0.030
MIN
0.040
MIN
0.40
~0.70
0.40
~0.60
0.15
~0.25
ISO
683-1
41 CrNiMo 2 0.37
~0.44
0.10
~0.40
0.70
~1.00
0.035
MIN
0.035
MIN
0.40
~0.70
0.40
~0.60
0.15
~0.30
ISO
683-1
41 CrNiMoS 2 0.37
~0.44
0.10
~0.40
0.70
~1.00
0.035
MIN
0.020
~0.040
0.40
~0.70
0.40
~0.60
0.15
~0.30
 *The remainder is Fe.
 As for this steel materials, copper (Cu) as impurities must not be beyond 0.30%.
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JIS (Japanese Industrial Standard)
AISI (American Iron and Steel Institute)
ISO (International Organization for Standardization)
 Fe : Iron (Fe is which stands for "Ferrum" of the Latin.)
 C : Carbon
 Si : Silicon
 Mn : Manganese
 P : Phosphorus
 S : Sulfur
 Ni : Nickel
 Cr : Chromium
 Mo : Molybdenum


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