#4-40 X 5/16" Hex Female Standoffs | 1/4" OD | 303 Stainless Steel (500 / Pkg.)

Mutual ScrewSKU: 140504HF303KC

Price:
Sale price$193.20per 500( $0.39 each)
Pieces 500
Measurement type Inch
Thread size #4-40
Diameter 4
Length 5/16
Material Steel
Grade 303
Finish Stainless Steel
Outer diameter 1/4
Shape Hex
Style Female/Female
Threads per inch 40
Weight 2.0 lb

WARNING: This product can expose you to chemicals including lead and lead compounds, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to https://www.P65Warnings.ca.gov.

Description

Precision standoffs engineered for board-to-panel spacing in industrial electronics. These hex female standoffs deliver reliable, compact mounting solutions for electronics manufacturing, robotics, and enclosure hardware.

Specs

  • Dimensions: Outer diameter 0.25 inch; Length 0.3125 inch
  • Drive type: hex female
  • Material grade: 303 stainless steel
  • Thread type: 4-40

Features

  • Secure installation: Hex female drive enables installation with standard tools and yields a clean, low-profile appearance when clearance is limited.
  • Corrosion resistance: 303 stainless steel offers high rust resistance under humid, saline, or industrial conditions.
  • Compact spacing: 0.25 inch outer diameter supports tight panel-to-board and enclosure spacing without crowding adjacent components.
  • Standard thread size: 4-40 thread is a common size in electronics, used with a broad range of fasteners and hardware.
  • Application versatility: Suitable for PCB mounting, panel mounting, standoff spacers in enclosures, robotics, and other industrial assemblies requiring precise spacing and durable materials.
  • Bulk packaging: 1000 pieces per bulk pack supports production lines, repair kits, and long-term inventory management.

Can We Help?

If you’re not sure that this product is right for you, give us a call!
800-222-0324

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