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Plastic Screw - Cross Recessed Flat Head Machine Screws for Precision Instruments - RENY


  • High strength
  • Miniature

Dimension Drawing

SPA-MFPlastic Screw - Cross Recessed Flat Head Machine Screws for Precision Instruments - RENY寸法図



M (Coarse)
Nominal of Thread

Unit : mm

Part Number M (Coarse)
Nominal of Thread
Pitch L D1 Cross-recessed
Socket Number
Tension Rupture Load*1 (N) Torsional Torque*1 (N・m) Qty per pack Mass
SPA-M1.2-2.5-MF M1.2 0.25 2.5 2.3 0 110 0.029 10 0.005 3.78 CAD Cart
SPA-M1.2-4-MF M1.2 0.25 4 2.3 0 110 0.029 10 0.007 3.78 CAD Cart
SPA-M1.4-2.5-MF M1.4 0.3 2.5 2.5 0 150 0.047 10 0.006 3.78 CAD Cart
SPA-M1.4-4-MF M1.4 0.3 4 2.5 0 150 0.047 10 0.008 3.78 CAD Cart
SPA-M1.6-2.5-MF M1.6 0.35 2.5 2.8 0 156 0.052 10 0.008 3.78 CAD Cart
SPA-M1.6-4-MF M1.6 0.35 4 2.8 0 156 0.052 10 0.011 3.78 CAD Cart

*1: Values in chart are for reference only. They are not guaranteed values. The recommended torque is 50% of the torsional torque.

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Main unit RENY*1 (Glass Fiber 50% Reinforced Polyamide MXD6)
Heat resistance temperature*2 105℃

*1: RENY is a registered trademark of Mitsubishi Engineering-Plastics Corporation.
*2: A value of plastic materials. The allowable operating temperature of the product varies depending on use conditions such as tightening torque.


Heat insulation and dew condensation prevention of electric and electronic devices / refrigerating and freezing facilities / Weight saving of offshore instruments, plating facility and automobile, aircraft and space equipment, etc.


  • Miniature screws for precision devices.
  • RENY is thermoplastic engineering plastics with excellent tensile strength and bending strength.
  • It is highly fatigue-resistant and has excellent creeping and heat insulation properties.
  • While it is nearly as strong as metal, its mass is about 1/5 of iron.
  • Plastic screw properties and precautions for use ⇒Plastic Screws

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