S-90113A136 8-32 x 3/4" Thumb Screws

Thumb Screws

0803FA00004 Thumb Screws
0803FA00004 Thumb Screws

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

Part No.
Part No. 0803FA00004
Equivalent to mcmaster :
90113A136

Basic Information

System of Measurement Inch

Head Parameters

Head Type Thumb
Thumb Screw Head Shape Hex
Head Width 3/8"
Head Height 1/4"

Dimensions

Length 3/4"

Thread Parameters

Thread Type UNC
Thread Size 8-32
Thread Diameter 0.164"
Thread Spacing Coarse
Thread Direction Right Hand
Thread Fit Class 2A
Threading Fully Threaded

Tip & Drive Parameters

Drive Style External Hex

Material & Strength

Material 18-8 Stainless Steel
Hardness Rockwell B83
Tensile Strength 80000 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

  • Corrosion-resistant 18-8 stainless steel construction ensures long-term reliability in harsh environments, reducing maintenance and replacement costs.
  • High tensile strength of 80,000 PSI provides superior load-bearing capacity for demanding industrial applications.
  • Rockwell B83 hardness rating offers excellent wear resistance, maintaining thread integrity through repeated use.
  • External hex thumb head design enables quick tool-free installation and removal, improving assembly efficiency.
  • Class 2A thread fit with UNC coarse threading ensures smooth engagement and reliable fastening in various materials.
  • Full threading along the 3/4" length allows for maximum adjustment range and secure holding power.
  • RoHS 3 and REACH compliance guarantees environmental safety and regulatory acceptance for global manufacturing.

Professional Applications & Engineering Value

This 18-8 stainless steel thumb screw delivers exceptional engineering value through its combination of corrosion resistance and high tensile strength. The 8-32 UNC coarse thread configuration provides superior holding power in soft materials and plastics where fine threads might strip, while the external hex thumb head enables rapid manual operation without tools - particularly valuable in maintenance panels, electronic enclosures, and machinery access points requiring frequent adjustments. The fully threaded design ensures consistent clamping force across the entire engagement length, preventing loosening from vibration. These features make it ideal for industrial applications in electrical cabinets, automotive components, and manufacturing equipment where reliable, corrosion-resistant fastening is critical.

Specification Summary & Compliance

This thumb screw features precision 8-32 UNC coarse threads with Class 2A thread fit tolerances ensuring consistent performance. The fastener maintains dimensional accuracy with a 3/4" length and 0.164" thread diameter. Manufacturing complies with industry standards for stainless steel fasteners and carries full RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, meeting the latest environmental regulations for hazardous substance restrictions.

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