S-90462A330 8-32 x 3/8" Thumb Screws

Thumb Screws

0790FA00004 Thumb Screws
0790FA00004 Thumb Screws

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

Part No.
Part No. 0790FA00004
Equivalent to mcmaster :
90462A330

Basic Information

Color Off-White
System of Measurement Inch

Head Parameters

Head Type Thumb
Thumb Screw Head Shape Round
Round-Head Thumb Screw Profile Raised
Head Diameter 27/64"
Head Height 5/16"
Head Texture Knurled

Dimensions

Length 3/8"
Collar Diameter 3/8"
Collar Height 11/64"

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

Material & Strength

Material Glass-Filled Nylon Plastic
Hardness Not Rated
Tensile Strength 18000 psi

Temperature & Environment

Temperature Range -40° to 185° F
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 grip and tool-free operation with a knurled round head design for maximum hand-tightening control in tight spaces
  • Excellent durability and impact resistance provided by glass-filled nylon construction, ideal for repeated use
  • Reliable performance across wide temperature ranges from -40° to 185° F, maintaining integrity in varying environments
  • High tensile strength of 18,000 psi ensures secure fastening for medium-duty industrial applications
  • Precise and easy engagement with 8-32 UNC coarse threads and Class 2A fit for quick assembly and reduced cross-threading risk
  • Full regulatory compliance with RoHS 3 and REACH standards, making it safe for use in regulated industries
  • Corrosion-resistant and non-conductive plastic material eliminates galvanic corrosion and electrical hazards

Professional Applications & Engineering Value

This glass-filled nylon thumb screw is engineered to solve common industrial challenges where metal fasteners fall short. The 8-32 UNC coarse thread and Class 2A fit provide reliable engagement in plastic and soft metal components, reducing installation time and preventing damage. The knurled round head with raised profile offers exceptional grip for tool-free adjustments in electronic enclosures, machinery panels, and medical devices. Its temperature resistance from -40° to 185° F and 18,000 psi tensile strength ensure long-term performance in automotive, aerospace, and outdoor equipment applications where weight reduction, corrosion resistance, and electrical insulation are critical. The fully threaded design and off-white color make it suitable for visible assemblies requiring both functionality and aesthetic consistency.

Specification Summary & Compliance

This thumb screw features precision 8-32 UNC coarse threads with Class 2A fit for consistent dimensional accuracy and reliable assembly. Manufacturing adheres to standard inch system specifications with a 3/8" length and fully threaded profile. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for hazardous substance restrictions.

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