S-92098A171 M8 x 25 mm DIN 551, ISO 4766 Set Screws

Set Screws

0640FA00055 Set Screws
0640FA00055 Set Screws

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

Part No.
Part No. 0640FA00055
Equivalent to mcmaster :
92098A171

Basic Information

System of Measurement Metric

Head Parameters

Head Type Headless

Dimensions

Length 25 mm

Thread Parameters

Thread Type Metric
Thread Size M8
Thread Pitch 1.25 mm
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 6g

Tip & Drive Parameters

Tip Type Flat
Drive Style Slotted

Material & Strength

Material Alloy Steel
Hardness Rockwell B67

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met DIN 551, ISO 4766
Technical Drawings No drawings available at the moment, will be launched soon
In Stock
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Key Features & Benefits at a Glance

  • Exceptional holding strength from alloy steel construction with Rockwell B67 hardness, preventing deformation under high stress
  • Precise Class 6g thread fit ensures reliable engagement and vibration resistance in demanding applications
  • Coarse M8 x 1.25mm threading provides faster installation and reduced cross-threading risks
  • Headless slotted drive design allows flush mounting in confined spaces while maintaining tool accessibility
  • Flat tip configuration delivers maximum surface contact for superior grip and component positioning
  • Full regulatory compliance with RoHS 3 and REACH ensures environmental safety and global market acceptance
  • Standardized dimensions per DIN 551 and ISO 4766 guarantee interchangeability and engineering consistency

Professional Applications & Engineering Value

This M8 metric set screw delivers critical engineering solutions for industrial assemblies requiring secure positioning and permanent fastening. The alloy steel construction with Rockwell B67 hardness provides superior resistance to vibrational loosening and material fatigue in high-stress environments. The headless design with slotted drive enables flush installation where protruding fasteners are impractical, while the flat tip maximizes contact area for precise component alignment in machinery, automotive, and manufacturing equipment. The coarse thread pitch (1.25mm) ensures rapid installation and reduced assembly time without compromising holding power. Full compliance with DIN 551 and ISO 4766 standards guarantees dimensional accuracy and performance reliability across international engineering specifications.

Specification Summary & Compliance

Manufactured to precise Class 6g thread tolerance for consistent fit and performance. Complies with DIN 551 and ISO 4766 mechanical and dimensional standards. Meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Features metric coarse threading (M8 x 1.25mm), 25mm length, and alloy steel material with Rockwell B67 hardness specification.

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