Tanged Helical Insert, Screw-Locking, 5/16"-24 Thrd Sz, 18-8 Stainless Steel, 100 PK MPN:A3591-5CNW312

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Brand: Stanley
Part #: A3591-5CNW312
SKU
510-G2554781
Regular Price $113.11 Special Price $80.79

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Tanged Helical Insert, Screw-Locking, 5/16"-24 Thrd Sz, 18-8 Stainless Steel, 100 PK

Elevate your fastening game with Stanley's Tanged Helical Insert, a premium 18-8 stainless steel solution for demanding applications. This screw-locking insert is ideal for metal-to-metal connections in industries such as aerospace, automotive, and heavy machinery. Its dry film lubricant finish ensures smooth insertion and reduced torque, while its high tensile strength (200,000-250,000 psi) provides exceptional durability. Use it in applications where reliability and corrosion resistance are paramount, such as in marine hardware, medical equipment, and industrial machinery. With a 100-pack available, you'll have ample supply for your most critical projects.

Top product features:

  • Tanged design for easy installation
  • Fine thread for secure fastening
  • Dry film lubricant coating for reduced friction and easier screwing

Top product applications:

  • Machine parts assembly
  • Automotive parts manufacturing
  • Aerospace components installation
Helical Insert, Helical Insert Type Screw-Locking, System of Measurement Inch, Overall Length 5/16 in, Thread Size 5/16 In.-24, Thread Direction Right Hand, Thread Type Fine, Material Stainless Steel, Material Grade/Class 18-8, Finish Dry Film Lubricant, Tang Style Tanged, Compatible Material Metal, Compatible Tap Size 5/16 In.-24, Drill Bit Size 21/64 in, Maximum Hole Diameter Not Applicable, Tensile Strength 200,000 to 250,000 psi, Outside Diameter 0.39 in, Manufacturer Location Made in USA

Additional Information

  • Country of Origin: US
  • Drop Ship Item: No
  • Blind Ship Eligible: No
  • LTL Freight Required: No
  • Lead Time: Ships in 1 days
  • Minimum Order Quantity: 1
  • Unit of Measure: PK
  • Package Length: 4.00
  • Package Width: 3.70
  • Package Height: 2.00
  • Package Weight: 0.27
Product info last updated on February 13, 2026 9:40am UTC Category: Threaded Inserts
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In stock