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In Stock Jfast Ms51959-17 - 4-40x1/2 Ms51959 Nasm51959 Phil Flat Machine Screw Full Thread 300 Series S/s Dfar, Case Quantity: 4,000 Up To 55% Off [wNQoUShB]

$56.99 $182.99 -69%

JFAST MS51959-17 Flat Machine Screw Discover the superior quality and reliability of the JFAST MS51959-17 Flat Machine Screw. This precision-engineered fastener is designed to meet the stringent requirements of the military and aerospace industries.

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In Stock Jfast Ms51959-17 - 4-40x1/2 Ms51959 Nasm51959 Phil Flat Machine Screw Full Thread 300 Series S/s Dfar, Case Quantity: 4,000 Up To 55% Off [wNQoUShB]

JFAST MS51959-17 Flat Machine Screw

Discover the superior quality and reliability of the JFAST MS51959-17 Flat Machine Screw. This precision-engineered fastener is designed to meet the stringent requirements of the military and aerospace industries. Its robust construction and exceptional durability make it an ideal choice for demanding applications.

Key Features and Specifications

The MS51959-17 screw features a 4-40 size and a 1/2" length, offering a perfect balance between strength and flexibility. Its flat head design provides a sleek, clean finish, while the Phillips drive style ensures easy installation with a standard screwdriver. Crafted from 18-8 stainless steel, this screw boasts excellent corrosion resistance and long-lasting performance.
  • Size: 4-40
  • Length: 1/2"
  • Head Style: Flat Head
  • Drive Style: Phillips
  • Material: 18-8 Stainless Steel

Applications and Benefits

The JFAST MS51959-17 Flat Machine Screw is a versatile fastener that finds applications in a wide range of industries, including military, aerospace, and manufacturing. Its compliance with DFARS and RoHS standards makes it suitable for projects requiring strict regulatory adherence. This screw's ability to withstand harsh environments and maintain structural integrity over time ensures that your projects will perform reliably and efficiently. Whether you're working on a complex machinery assembly or a precision engineering project, the MS51959-17 screw is a valuable asset.
  • Industry-Grade: Ideal for military and aerospace applications
  • Compliance: DFARS and RoHS compliant
  • Reliability: Long-lasting performance in demanding environments

What Our Customers Say

January 23, 2026

Absolutely no complaints!

-34. An awesome product that I use very, very, very, very often.

- Anarawd Y..

January 23, 2026

Absolutely no complaints!

Great item, and it was delivered very, very, very fast.

- Afallach T..

January 23, 2026

Absolutely no complaints!

Very pleased with the very, very, very sturdy build quality.

- Mabon S..

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