S-91385A421 M6 x 30 mm DIN 916, ISO 4029 Set Screws

Set Screws

0621FA00035 Set Screws
0621FA00035 Set Screws

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

Part No.
Part No. 0621FA00035
Equivalent to mcmaster :
91385A421

Basic Information

System of Measurement Metric

Head Parameters

Head Type Headless

Dimensions

Length 30 mm

Thread Parameters

Thread Type Metric
Thread Size M6
Thread Pitch 1 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 3 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

  • Secure Vibration Resistance – Nylon patch thread locker prevents loosening under dynamic loads, maintaining clamp force in high-vibration environments
  • Superior Material Durability – Black-oxide coated alloy steel provides excellent corrosion resistance and extends service life in demanding conditions
  • Precision Thread Engagement – Class 5g6g thread fit ensures consistent mating with components, reducing installation issues and improving reliability
  • High Strength Performance – Rockwell C45 hardness delivers exceptional shear and tensile strength for heavy-duty industrial applications
  • Optimized Drive Efficiency – 3 mm hex drive allows high torque application with standard tools while headless design saves space in assemblies
  • Wide Temperature Compatibility – Nylon locking patch remains effective from -50° to 250°F, ensuring performance across diverse operating environments
  • Positive Positioning – Cup point design digs into shaft surfaces for maximum grip and prevents rotational slippage in power transmission systems

Professional Applications & Engineering Value

This M6 metric set screw delivers critical engineering solutions for industrial equipment requiring permanent component positioning. The black-oxide alloy steel construction withstands harsh operating conditions while the nylon patch thread locker eliminates maintenance-intensive retightening in vibrating machinery. Engineers specify this cup point set screw for precision shaft collars, gear hubs, and pulley systems where coarse threading enables rapid assembly and the headless design maximizes space utilization. The combination of Rockwell C45 hardness and Class 5g6g thread fit ensures reliable performance in automotive, manufacturing, and heavy equipment applications where vibration resistance and dimensional accuracy are paramount.

Specification Summary & Compliance

Manufactured to DIN 916/ISO 4029 specifications with Class 5g6g thread fit tolerance for precision engagement. This M6 x 1 mm coarse thread set screw features 30 mm length and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.

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