S-97713A134 M20 DIN 609 Shoulder Screws

Shoulder Screws

0556FA00031 Shoulder Screws
0556FA00031 Shoulder Screws

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

Part No.
Part No. 0556FA00031
Equivalent to mcmaster :
97713A134

Basic Information

System of Measurement Metric

Head Parameters

Head Type Hex
Head Width 30 mm
Head Height 13 mm
Head Texture Smooth

Dimensions

Shoulder Diameter 21 mm
Shoulder Diameter Tolerance 0.002 to 0.015 mm
Shoulder Fit Standard
Shoulder Length 17.5 mm
Shoulder Length Tolerance -1 to 0 mm

Thread Parameters

Thread Type Metric
Thread Size M20
Thread Pitch 2.5 mm
Thread Spacing Coarse
Thread Length 30.5 mm
Thread Direction Right Hand
Thread Fit Class 6g

Tip & Drive Parameters

Drive Style External Hex

Material & Strength

Material Steel
Hardness Rockwell C20
Tensile Strength 120000 psi

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met DIN 609
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Exceptional load-bearing capacity with 120,000 psi tensile strength for reliable performance in demanding applications
  • Precision alignment and spacing ensured by the 21mm shoulder diameter with tight 0.002-0.015mm tolerance
  • Superior wear resistance thanks to Rockwell C20 hardness steel construction
  • Quick installation and removal with 30mm external hex head design for standard tool compatibility
  • Secure fastening in coarse materials through M20x2.5 coarse thread with Class 6g fit
  • Consistent dimensional stability maintained through DIN 609 manufacturing standards
  • Environmentally responsible sourcing with full RoHS 3 and REACH compliance

Professional Applications & Engineering Value

This M20 shoulder screw delivers critical engineering solutions where precise component alignment and rotational stability are paramount. The 21mm shoulder diameter with minimal tolerance variation provides exact locating surfaces for machinery parts, eliminating misalignment in automated equipment and precision instruments. Manufactured from hardened steel with Rockwell C20 rating, it withstands repetitive shear forces in conveyor systems, robotic arms, and assembly fixtures. The M20x2.5 coarse thread with Class 6g fit ensures rapid installation in castings and structural components while maintaining vibration resistance. The 30mm hex head accommodates standard industrial tools for efficient maintenance in confined spaces. These shoulder screws serve as ideal pivots, axles, and spacers in heavy-duty applications where dimensional accuracy directly impacts operational reliability.

Specification Summary & Compliance

This precision metric shoulder screw features M20x2.5 coarse right-hand thread with Class 6g tolerance per ISO standards. The shoulder maintains 21mm diameter with 0.002-0.015mm tolerance and 17.5mm length with -1 to 0mm variation. Manufacturing follows DIN 609 specifications for dimensional consistency. The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe integration across global industrial markets.

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