S-91385A405 M3 x 5 mm DIN 916, ISO 4029 Set Screws

Set Screws

0621FA00019 Set Screws
0621FA00019 Set Screws

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

Part No.
Part No. 0621FA00019
Equivalent to mcmaster :
91385A405

Basic Information

System of Measurement Metric

Head Parameters

Head Type Headless

Dimensions

Length 5 mm

Thread Parameters

Thread Type Metric
Thread Size M3
Thread Pitch 0.5 mm
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 5g6g
Locking Type Thread Locker
Thread Locker Type Nylon Patch
Thread Locker Temperature Range -50° to 250° F

Tip & Drive Parameters

Tip Type Cup
Drive Style Hex
Drive Size 1.5 mm

Material & Strength

Material Black-Oxide Alloy Steel
Hardness Rockwell C45

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met DIN 916, ISO 4029
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Permanent vibration resistance with integrated Nylon Patch thread locker that maintains secure fastening under dynamic loads
  • Superior corrosion protection through Black-Oxide surface treatment, extending service life in harsh industrial environments
  • High-strength performance achieved via Rockwell C45 hardened Alloy Steel construction for reliable load-bearing capacity
  • Precise thread engagement with Class 5g6g thread fit ensuring consistent mating with corresponding metric components
  • Space-saving installation enabled by headless design and compact 1.5 mm hex drive for confined assembly areas
  • Wide temperature tolerance from -50° to 250°F (-45° to 121°C) allowing deployment in extreme thermal conditions
  • Enhanced component gripping through cup tip design that concentrates clamping force for superior positional security

Professional Applications & Engineering Value

This M3 x 0.5 mm set screw delivers critical engineering solutions for industrial equipment requiring permanent, vibration-resistant fastening. The Black-Oxide Alloy Steel construction provides exceptional durability against wear and environmental exposure, while the integrated Nylon Patch locking technology eliminates the need for separate thread-locking compounds. Its headless hex drive configuration enables flush mounting in precision machinery, automotive assemblies, and electronic enclosures where protrusions are unacceptable. The coarse thread pitch and Class 5g6g thread fit ensure rapid installation with consistent torque transmission, making it ideal for high-volume manufacturing applications demanding both speed and reliability.

Specification Summary & Compliance

Manufactured to DIN 916/ISO 4029 standards with Class 5g6g thread fit tolerance for precision metric threading. The M3 x 0.5 mm coarse thread configuration provides optimal engagement strength. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations ensures environmental safety and industrial suitability.

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