S-98625A770 1/4"-80 x 1 3/4" Set Screws

Set Screws

0675FA00075 Set Screws
0675FA00075 Set Screws

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

Part No.
Part No. 0675FA00075
Equivalent to mcmaster :
98625A770

Basic Information

System of Measurement Inch

Head Parameters

Head Type Headless

Dimensions

Length 1 3/4"

Thread Parameters

Thread Type UNS
Thread Size 1/4"-80
Thread Diameter 0.25"
Thread Spacing Ultra Fine
Thread Direction Right Hand
Thread Fit Class 3A

Tip & Drive Parameters

Tip Type Ball
Tip Diameter 0.156"
Tip Material Alloy Steel
Drive Style Hex
Drive Size 3/32"

Material & Strength

Material 303 Stainless Steel
Hardness Not Rated

Temperature & Environment

REACH Compliant
RoHS Compliant
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 corrosion resistance with 303 stainless steel construction for extended service life in demanding environments
  • Exceptional thread precision with Class 3A fit ensuring reliable, vibration-resistant fastening in critical assemblies
  • Enhanced gripping power from the alloy steel ball tip that minimizes surface damage while maintaining secure positioning
  • Space-saving headless design ideal for applications where protruding fastener heads are not feasible
  • Precise torque application enabled by the 3/32" hex drive for consistent installation and removal
  • Ultra-fine thread engagement (1/4"-80) providing maximum holding strength in thin materials and precision components
  • Regulatory compliance assurance meeting RoHS 3 and REACH standards for global manufacturing requirements

Professional Applications & Engineering Value

This precision set screw addresses critical engineering challenges in applications requiring minimal thread profile and maximum holding strength. The 303 stainless steel construction provides excellent corrosion resistance for machinery operating in harsh environments, while the ultra-fine thread (1/4"-80) design ensures secure fastening in thin-walled components and precision instruments. The hex drive configuration allows for precise torque control during installation, preventing damage to sensitive assemblies. The ball tip, manufactured from durable alloy steel, distributes pressure evenly to minimize surface marring while maintaining positional integrity in sliding components, shaft collars, and gear assemblies. This combination of features makes it ideal for aerospace, medical equipment, and precision manufacturing applications where vibration resistance and dimensional accuracy are paramount.

Specification Summary & Compliance

This set screw features Class 3A thread fit per UNS standards, ensuring tight tolerances for precision applications. The 1/4"-80 ultra fine thread configuration provides exceptional engagement in limited space scenarios. Manufacturing complies with RoHS 3 (2015/863/EU) with exemption 6(c) for lead in copper alloy and REACH (EC 1907/2006) compliance as of 06/14/2023. The right-hand thread direction and 1 3/4" length make it suitable for various industrial fastening requirements where reliability and regulatory compliance are essential.

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