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303 Stainless Steel Machine Screw, Metric, Flat Head, Slotted Drive, Plain Finish, Meets NAS Specifications, Right Hand Threads, Made In US
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Product Specifications
- Brand Name
- Antrin Miniature Specialties, Inc.
- Drive Style
- Slotted
- Exterior Finish
- Plain
- Head Style
- Flat
- Material Type
- 303 Stainless Steel
- Point Style
- N/A
- Self Locking Mechanism
- N/A
- Specification Met
- NAS
- System of Measurement
- Metric
- Thread Style
- Right Hand
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Key Features
- Machined, Precision, Instrument quality machine screws, manufactured to National Aerospace Standards
- Precision, Burr free
- Passivated 303 Stainless Steel Material conforms to AMS-5640 Type 1, ASTM-A-582, MIL-S-7720, QQS763C, QQS764B
- Aerospace Quality
- Medical Quality
Product 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). Passivation helps prevent corrosion in certain stainless steels by removing surface impurities that can be caused by machining or forming processes. These impurities block the normally occurring formation of a protective oxide coating on the steel.
Flat head style allows fastener to sit flush to the surface
A threaded fastener's size name includes information about the major external diameter (in millimeters), followed by the thread pitch (millimeters per thread), 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.
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