S-91900A836 8-32 x 1 1/4" Tamper-Resistant Torx Stainless Steel Button Head Screws

Tamper-Resistant Torx Stainless Steel Button Head Screws

0204FA00059 Tamper-Resistant Torx Stainless Steel Button Head Screws
0204FA00059 Tamper-Resistant Torx Stainless Steel Button Head Screws

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

Part No.
Part No. 0204FA00059
Equivalent to mcmaster :
91900A836

Basic Information

System of Measurement Inch

Head Parameters

Head Type Rounded
Head Diameter 0.312"
Head Height 0.087"
Rounded Head Profile Standard
Rounded Head Style Button

Dimensions

Length 1 1/4"

Thread Parameters

Thread Type UNC
Thread Size 8-32
Thread Diameter 0.164"
Thread Spacing Coarse
Min Thread Length 7/8"
Thread Direction Right Hand
Thread Fit Class 3A
Threading Partially Threaded

Tip & Drive Parameters

Drive Style Tamper-Resistant Torx
Drive Size T15

Material & Strength

Material 18-8 Stainless Steel
Finish Passivated
Hardness Rockwell B70
Tensile Strength 70000 psi

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

  • Enhanced tamper resistance with Torx T15 drive design to prevent unauthorized access in secure environments
  • Superior corrosion protection through 18-8 stainless steel construction and passivated surface treatment
  • Precise thread engagement with Class 3A fit ensuring reliable fastening in demanding applications
  • Exceptional mechanical strength with 70,000 psi tensile strength and Rockwell B70 hardness for heavy-duty use
  • Optimized head profile featuring rounded button design for reduced snagging and improved aesthetics
  • Regulatory compliance meeting RoHS 3 and REACH standards for global industrial applications
  • Versatile partial threading allowing precise clamping force control across various material thicknesses

Professional Applications & Engineering Value

Engineered for industrial security applications, these 8-32 UNC rounded head screws address critical fastening challenges in access control systems, machinery guards, and public infrastructure. The 18-8 stainless steel material combined with passivated finish provides exceptional resistance to harsh environments, including chemical exposure and moisture, significantly extending service life. The tamper-resistant Torx T15 drive ensures installation integrity in high-security scenarios while the Class 3A thread fit guarantees precise engagement in repetitive assembly operations. These partially threaded screws offer controlled clamping force distribution, making them ideal for electronic enclosures, automotive components, and industrial equipment where vibration resistance and unauthorized access prevention are paramount.

Specification Summary & Compliance

Manufactured to exacting standards with Class 3A thread fit and UNC coarse thread spacing for superior engagement in industrial applications. The 8-32 thread size with right-hand direction and 1-1/4" length ensures compatibility with standard components. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations guarantees environmental safety and global market acceptance. Mechanical properties include 70,000 psi tensile strength and Rockwell B70 hardness for reliable performance in demanding conditions.

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