Small Parts MS51957-21B 18-8 Stainless Steel Pan Head Machine Screw, Black Oxide Finish, Meets MS-51957, #1 Phillips, #4-40 Thread Size, 1" Length, Fully Threaded, USA Made (Pack of 50);
Small Parts MS51957-21B 18-8 Stainless Steel Pan Head Machine Screw, Black Oxide Finish, Meets MS-51957, #1 Phillips, #4-40 Thread Size, 1

Machine screws are threaded fasteners that are typically used with nuts or drilled and tapped (threaded) holes. They are available with a variety of head shapes, which determine how the screw interacts ...

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Machine screws are threaded fasteners that are typically used with nuts or drilled and tapped (threaded) holes. They are available with a variety of head shapes, which determine how the screw interacts with the mating surface, and drive styles, which determine the type of driver required to install and remove the screw.



  • The package length is 7.874 centimeters
  • The package height is 1.27 centimeters
  • The package width is 7.111 centimeters
  • Package Weight : 0.1 pounds
  • The package length is 7.874 centimeters
  • The package height is 1.27 centimeters
  • The package width is 7.111 centimeters
  • Package Weight : 0.1 pounds

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