S-92545A161 M4 x 25 mm Thumb Screws

Thumb Screws

0770FA00005 Thumb Screws
0770FA00005 Thumb Screws

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

Part No.
Part No. 0770FA00005
Equivalent to mcmaster :
92545A161

Basic Information

System of Measurement Metric

Head Parameters

Head Type Thumb
Thumb Screw Head Shape Round
Round-Head Thumb Screw Profile Narrow
Head Diameter 4.8 mm
Head Height 9.5 mm
Head Texture Knurled

Dimensions

Length 25 mm

Thread Parameters

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

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

  • Tool-free installation and adjustment with knurled round head design for superior manual grip in tight spaces
  • Exceptional corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments
  • High mechanical strength with 80,000 psi tensile strength and Rockwell B83 hardness for reliable, repeated use
  • Precision threading with Class 6g metric coarse thread ensuring smooth engagement and secure fastening
  • Full threading along 25 mm length provides maximum thread contact and adjustable positioning
  • Compliance with environmental regulations including RoHS 3 and REACH for global manufacturing applications
  • Narrow profile round head offers low clearance requirements while maintaining excellent torque application

Professional Applications & Engineering Value

This M4 thumb screw delivers critical performance advantages in industrial settings where frequent adjustments and reliable fastening are paramount. The 18-8 stainless steel construction provides excellent corrosion resistance, making it suitable for electronics enclosures, machinery guards, and laboratory equipment exposed to moisture or chemicals. The coarse 0.7 mm pitch metric threading combined with Class 6g tolerance ensures rapid installation and secure holding power without cross-threading risks. The fully threaded design along the entire 25 mm length allows for versatile positioning and maximum thread engagement. The knurled round head offers exceptional grip even with gloved hands, eliminating the need for tools in maintenance-heavy environments while the narrow profile accommodates limited clearance applications.

Specification Summary & Compliance

This thumb screw features M4 x 0.7 mm metric coarse threads with Class 6g tolerance for precision fit, manufactured from 18-8 stainless steel with Rockwell B83 hardness and 80,000 psi tensile strength. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting international environmental standards for industrial components.

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