S-96445A180 M4 Thumb Nuts

Thumb Nuts

1043FA00020 Thumb Nuts
1043FA00020 Thumb Nuts

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

Part No.
Part No. 1043FA00020
Equivalent to mcmaster :
96445A180

Basic Information

System of Measurement Metric
Nut Type Thumb, Flange

Dimension Parameters

Height 7 mm

Thread Parameters

Thread Type Metric
Thread Size M4
Threading Fully Threaded
Thread Direction Right Hand
Thread Pitch 0.7 mm
Thread Spacing Coarse
Thread Fit Class 6H

Head Parameters

Thumb Nut Head Shape Round
Thumb Nut Profile Flanged
Head Diameter 10 mm
Head Texture Knurled

Material & Strength Parameters

Material Passivated 18-8 Stainless Steel

Finish & Compliance Parameters

RoHS RoHS 3 (2015/863/EU) Compliant
REACH REACH (EC 1907/2006) (06/10/2022, 224 SVHC) Compliant

Geometric Parameters

Collar Diameter 9 mm
Collar Height 4 mm
Technical Drawings No drawings available at the moment, will be launched soon
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Key Features & Benefits at a Glance

  • Effortless hand-tightening with knurled round head design for superior grip without tools
  • Enhanced stability and load distribution through integrated flange collar design
  • Superior corrosion resistance with passivated 18-8 stainless steel construction
  • Reliable thread engagement with Class 6H coarse threading for secure fastening
  • Quick assembly efficiency with fully threaded right-hand metric design
  • Durability in demanding environments through high-quality stainless steel material
  • Regulatory compliance assurance meeting REACH and RoHS 3 environmental standards

Professional Applications & Engineering Value

This M4 flanged thumb nut delivers exceptional value in industrial applications where frequent adjustments or tool-less assembly is required. The passivated 18-8 stainless steel construction provides excellent corrosion resistance, making it ideal for harsh environments including outdoor equipment, marine applications, and food processing machinery. The knurled round head ensures secure grip even with gloved hands, while the integrated flange eliminates the need for separate washers, distributing clamping force evenly and preventing surface damage. With Class 6H coarse threading and metric thread specifications, this thumb nut offers reliable performance in vibration-prone applications, reducing maintenance requirements and improving operational efficiency across mechanical assemblies, electronic enclosures, and precision instrumentation.

Specification Summary & Compliance

This thumb nut features precision M4 x 0.7 mm coarse threading with Class 6H thread fit according to metric standards, ensuring consistent performance across industrial applications. The component maintains dimensional accuracy with a 10mm head diameter, 9mm collar diameter, and 7mm overall height. Manufacturing complies with international environmental regulations including REACH (EC 1907/2006) and RoHS 3 (2015/863/EU) compliance, guaranteeing safe use in regulated industries while maintaining the corrosion-resistant properties of passivated 18-8 stainless steel construction.

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