S-91781A835 10-32 x 1 1/4" ASME B18.6.3 Stainless Steel Slotted Flat Head Screws

Stainless Steel Slotted Flat Head Screws

0344FA00185 Stainless Steel Slotted Flat Head Screws
0344FA00185 Stainless Steel Slotted Flat Head Screws

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Part No.
Part No. 0344FA00185
Equivalent to mcmaster :
91781A835

Basic Information

System of Measurement Inch

Head Parameters

Head Type Flat
Head Diameter 0.362"
Head Height 0.116"
Flat Head Profile Standard

Dimensions

Length 1 1/4"

Thread Parameters

Thread Type UNF
Thread Size 10-32
Thread Diameter 0.19"
Thread Spacing Fine
Thread Direction Right Hand
Thread Fit Class 2A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style Slotted
Countersink Angle 82°

Material & Strength

Material 18-8 Stainless Steel
Finish Passivated
Hardness Rockwell B80
Tensile Strength 80000 psi

Temperature & Environment

REACH Compliant
RoHS Compliant
Specifications Met ASME B18.6.3
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 corrosion resistance thanks to 18-8 Stainless Steel and a passivated finish, ensuring long-term reliability in harsh environments.
  • Superior mechanical strength with 80,000 psi tensile strength and Rockwell B80 hardness for reliable performance under high-stress conditions.
  • Precise and secure fastening achieved through a Class 2A thread fit and fine thread spacing, minimizing the risk of loosening.
  • Optimized for flush mounting with a standard flat head profile and 82° countersink angle, providing a smooth, finished appearance.
  • Broad industry compliance including ASME B18.6.3 standards, RoHS 3, and REACH, ensuring safety and environmental responsibility.
  • Ease of installation and removal with a simple slotted drive design, facilitating quick assembly and maintenance.
  • Full-threaded design for maximum grip and load distribution along the entire 1-1/4" length.

Professional Applications & Engineering Value

Engineered for demanding industrial environments, these 10-32 UNF flat head screws provide a robust fastening solution where corrosion resistance and mechanical integrity are critical. The 18-8 Stainless Steel construction, enhanced by a passivated finish, effectively combats oxidation and chemical exposure, making them ideal for applications in marine, chemical processing, and food-grade equipment. The fine thread spacing and Class 2A fit ensure vibration resistance and precise alignment in assemblies, reducing the risk of joint failure. Their fully threaded design and 82° countersink angle allow for secure, flush installations in machinery, enclosures, and precision instruments, delivering consistent performance and reducing maintenance needs.

Specification Summary & Compliance

This screw features a 10-32 UNF thread with Class 2A dimensional tolerance and fine spacing, ensuring precise fit. It is manufactured in compliance with ASME B18.6.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for global industrial use.

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