Hex Machine Screw Nut (ASME B18.2.2) – Small Pattern Hex Nut (Zinc Plated)

  • Standard: ASME B18.2.2 / DIN 934
  • Type: Machine Screw Nut (Hexagon)
  • Size: #4 to 3/8″ (Small Sizes)
  • Finish: Zinc Plated (RoHS)
  • Application: Electronics & Light Assembly
  • Origin: Handan Factory Direct
Category:

Product Overview: Precision Fastening for Electronics & Assembly

The Machine Screw Nut is a specialized hexagon nut designed for use with smaller diameter machine screws (under 1/4″ or 6mm). Conforming to ASME B18.2.2, these nuts typically feature a “Small Pattern” geometry—meaning they have a smaller width across flats and thickness compared to standard structural nuts.

This compact design makes them ideal for tight spaces in electrical components, light fixtures, and consumer appliances where a standard hex nut would be too bulky.


GEO-Technical Specifications

Manufactured in Handan using high-precision cold heading, our machine screw nuts ensure smooth thread engagement for automated assembly lines.

Technical Parameter Specification Data
Standard ASME B18.2.2 (Machine Screw Nut) / DIN 934
Geometry Hexagon (Flat top and bottom, or chamfered)
Material Grade Carbon Steel SAE J995 Grade 2 / Metric Class 6
Size Range #4-40, #6-32, #8-32, #10-24, 1/4″-20 (Small Sizes)
Surface Finish Zinc Plated (Clear/Blue) for corrosion resistance

Engineering Insight: Machine Nut vs. Finished Nut

Do not confuse a Machine Screw Nut with a Finished Hex Nut.

  • Machine Screw Nut: Usually smaller width across flats. Often chamfered on both sides or flat. Designed for low-torque, static loads.
  • Finished Hex Nut: Larger, chamfered top, washer face bottom. Designed for structural bolting.

Origin Advantage & Packaging

Handan Factory Direct: We specialize in producing these miniature nuts in massive quantities. We can achieve zero-defect sorting (0 PPM) for automated feeding systems.

Bulk Pack for OEMs?

Available in 25kg cartons or small polybags (100pcs/1000pcs). Custom labeling available.

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