S-90403A853 M3 x 8 mm ISO 7045 Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer

Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer

0186FA00003 Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer
0186FA00003 Steel Pan Head Phillips Screws with Internal-Tooth Lock Washer

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

Part No.
Part No. 0186FA00003
Equivalent to mcmaster :
90403A853

Basic Information

Screw Features With Washer
System of Measurement Metric

Head Parameters

Head Type Rounded
Head Diameter 5.6 mm
Head Height 2.4 mm
Rounded Head Profile Standard
Rounded Head Style Pan

Dimensions

Length 8 mm

Thread Parameters

Thread Type Metric
Thread Size M3
Thread Pitch 0.5 mm
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 6g
Threading Fully Threaded
Locking Type Lock Washer

Tip & Drive Parameters

Drive Style Phillips
Drive Size No. 1

Washer & Nut

Washer Type Internal-Tooth Lock
Washer Material Zinc-Plated Steel
Washer OD 7.35 mm
Washer Thickness 0.45 mm

Material & Strength

Finish Zinc-Plated Steel
Hardness Not Rated

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met ISO 7045
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Superior vibration resistance through the integrated internal-tooth lock washer that maintains clamp force in high-stress environments
  • Enhanced corrosion protection with zinc-plated steel construction for reliable performance in various industrial conditions
  • Quick and secure installation using the Phillips No. 1 drive that provides common tool compatibility and efficient assembly
  • Optimized thread engagement with coarse M3 x 0.5mm threading and Class 6g fit ensuring consistent fastening performance
  • Reliable loosening prevention through the internal-tooth lock washer design that eliminates the need for additional locking components
  • Full-length threading capability allowing maximum grip along the entire 8mm length for versatile application requirements
  • Standardized dimensional accuracy meeting ISO 7045 specifications for consistent quality and interchangeability

Professional Applications & Engineering Value

These M3 metric screws with internal-tooth lock washers provide critical vibration-resistant fastening solutions for demanding industrial applications. The zinc-plated steel construction offers excellent corrosion resistance while maintaining structural integrity in challenging environments. The combination of coarse threading (M3 x 0.5mm) and Class 6g thread fit ensures rapid installation and reliable performance in materials where fine threads might strip or fail. The integrated lock washer eliminates common issues of fastener loosening in machinery, automotive assemblies, and electronic enclosures subjected to constant vibration or thermal cycling. The rounded pan head with Phillips drive facilitates quick assembly while providing a low-profile finish that minimizes snagging in confined spaces.

Specification Summary & Compliance

Manufactured to ISO 7045 standards with Class 6g thread fit tolerance for precision metric fastening. The screws feature full M3 x 0.5mm coarse threading along the entire 8mm length with integrated internal-tooth lock washer (7.35mm OD, 0.45mm thickness). Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.

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