S-90550A125 M5 x 8 mm Venting Stainless Steel Hex-Drive Flat Head Screws

Venting Stainless Steel Hex-Drive Flat Head Screws

0305FA00021 Venting Stainless Steel Hex-Drive Flat Head Screws
0305FA00021 Venting Stainless Steel Hex-Drive Flat Head Screws

Image may differ from product. See technical specification for details.

Part No.
Part No. 0305FA00021
Equivalent to mcmaster :
90550A125

Basic Information

Screw Features Vented
System of Measurement Metric

Head Parameters

Head Type Flat
Head Diameter 10 mm
Head Height 2.8 mm
Flat Head Profile Standard

Dimensions

Length 8 mm
Vent Diameter 1.32 mm

Thread Parameters

Thread Type Metric
Thread Size M5
Thread Pitch 0.8 mm
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 6g
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Hex
Drive Size 3 mm
Countersink Angle 90°

Material & Strength

Material 18-8 Stainless Steel
Hardness Not Rated

Temperature & Environment

REACH Compliant
RoHS Compliant
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
Price available upon request. Our sales team will respond within 24 hours with a competitive quote tailored to your requirements.
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Key Features & Benefits at a Glance

  • Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh or humid environments
  • Secure and flush installation thanks to the 90° countersink angle and flat head design
  • High-torque assembly capability enabled by the 3mm hex drive, preventing cam-out and tool slippage
  • Reliable and consistent thread engagement with Class 6g thread fit and fully threaded design for maximum grip
  • Pressure equalization and prevention of fluid entrapment through the integrated 1.32mm vent diameter
  • Broad industrial compatibility with coarse M5 x 0.8mm right-hand metric threading
  • Compliance with strict environmental regulations, being RoHS 3 and REACH compliant

Professional Applications & Engineering Value

This M5 flat head screw is engineered to address common challenges in industrial assembly, such as corrosion-induced failure and trapped air or moisture. Manufactured from 18-8 stainless steel, it provides excellent resistance to oxidation and chemical exposure, extending service life in demanding applications like machinery, electronics, and outdoor equipment. The fully threaded design and Class 6g thread fit ensure precise, vibration-resistant fastening, while the vented feature allows for pressure equalization, preventing seal failure in enclosed systems. The hex drive offers superior torque transfer for efficient installation and maintenance, making it a reliable choice for engineers seeking durable, high-performance metric fasteners.

Specification Summary & Compliance

This screw adheres to Metric standards with an M5 thread size, 0.8mm coarse pitch, and a Class 6g thread fit for consistent dimensional accuracy. The fully threaded design and 90° countersink angle ensure reliable performance. It is manufactured in compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for global industrial use without hazardous substances.

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