8020, 40-3278, 40 Series 5/16-18 Offset Threaded Slide in Economy T-Nut Steel T-Slot Accessories for 80/20 Aluminum 40mm Extrusion Hardware Nuts (25 Pack)

★★★★★ 5.0 70 reviews

$11.75
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$11.75
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Management number 228768314 Release Date 2026/05/31 List Price $4.70 Model Number 228768314
Category
  • This t-nut measures 16.19mm x 5.64 mm x 24.99 mm long, loads from the profile ends, and has a pilot thread projection that adds additional threading for increased strength.
  • This t-nut is made out of 1010 steel with a black zinc finish and is compatible with our 40 Series extruded aluminum profiles or 40mm based t slot aluminum extrusion.
  • Used with a 5/16-18 bolt to mount joining plates, brackets, or other t-track accessories. Works great for our 40-4040, 40-4080, 40-8016, 40-8080, and many other 40mm based extrusions.
  • This high quality and sturdy 5/16-18 nut will make a great addition to your fasteners hardware toolbox. Perfect for any home improvement enthusiast or general DIY'er.
  • This t-nut can be used in a wide variety of applications including 3d printers, cnc machine, building industrial aluminum frame structures, CNC laser cutters, Robotics Projects and more.
ASIN B081QQHFGN
Brand 80/20
Size Name 25
Metal Type Alloy Steel
Drive Style Slotted
Item Weight 0.5 Pounds
Part Number 40-3278-25
Thread Size 5/16"-18
Thread Type Unified National Coarse (Unc)
Grade Rating commercial
Manufacturer 80/20 Inc.
Thread Class Class 2A
Thread Style External, Unified, Coarse
Fastener Type Tee
Material Type Alloy Steel
Exterior Finish Zinc
Number Of Items 1
Inside Thread Size #4
Compatible Groove Diameter 0.31 Inches

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