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Whilson » Fasteners » Screws » Precision Stainless Steel 303 Machine Screw, Flat Head, Slotted Drive, ANSI B18.6.3

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15% Discount: Precision Stainless Steel 303 Machine Screw, Flat Head, Slotted Drive, ANSI B18.6.3

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Precision Stainless Steel 303 Machine Screw, Flat Head, Slotted Drive, ANSI B18.6.3

Description

Machine Screws, also referred to as Machine Bolts, are often used with nuts or driven into tapped holes. They come in a variety of head types and drive styles, but are generally available in smaller sizes.

Stainless steels are used for their corrosion resistance, high-temperature strength, scaling resistance, and low-temperature toughness. These properties account for their extremely wide use in practically every industry. Austenitic Stainless Steels are alloys of iron and carbon that contain between 16% and 30% Chromium, a maximum of 0.15% carbon, along with Nickel (or Manganese), and other alloying elements. The chromium, which helps develop a passive surface oxide film, provides corrosion resistance in stainless steels. Austenitic Stainless Steels are designated by a 3 digit SAE Stainless Steel Grade beginning with the number 3 (e.g. 304, 316).

Stainless Steel 303 contains 0.15% carbon, along with traces of sulfur and phosphorus which makes this a free machining alloy. Free machining refers to the ability to cut and finish the materials without heavy wear on the machining tools. Tensile Strength is 35000 psi (pounds per square inch).

Flat head fasteners are designed to fit flush to the surface when used with countersunk holes. Length is measured from the top of the head.

A threaded fastener's size name includes information about the major external diameter, followed by the threads per inch, which indicates if it is coarse or fine. Fine threads are preferable when working with harder materials or when threading into a thin material. They are also stronger in tension than coarse threads, and generally provide higher shear strengths.

Specifications


Features

  • Screws conform to ANSI B18.6.3
  • Precision, Burr free
  • 303 Stainless Steel Material conforms to AMS-5640 Type 1, ASTM-A-582, MIL-S-7720, QQS763C, QQS764B
  • Aerospace Quality
  • Medical Quality

    • Details


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