Mutual Screw & Supply

1/4-20 X 3/8" Knurled Cup Point Socket Set Screws | Alloy Steel (1000 / Pkg.)

1/4-20 X 3/8" Knurled Cup Point Socket Set Screws | Alloy Steel (1000 / Pkg.) - Main image
$49.35 $70.5 In stock

These 1/4-20 x 3/8" socket set screws are manufactured from Alloy Steel, featuring a socket drive. They are well suited to securing collars, gears, and pulleys to shafts.

  • Material and finish: Alloy Steel
  • Drive: Socket
  • Thread size: 1/4-20
  • Length: 3/8"
  • Applications: Securing collars, gears, and pulleys to shafts

Specifications

  • Product type: Socket Set Screws
  • Material: Alloy Steel
  • Finish: Plain
  • Drive type: Socket
  • Thread size: 1/4-20
  • Length: 3/8"
  • Threads per inch: 20
  • Measurement type: Imperial
  • Features: Knurled; Cup Point
  • Pack quantity: 1000 per package

Please note: This item is excess stock and is sold non-cancelable, non-refundable, and non-returnable. Please call us with any questions about this item before ordering.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Victoria K. ★★★★★

The knurled cup point on these set screws really bites into the shaft to prevent slipping. I'm glad I bought the full thousand-count box, because they're perfect for securing collars and gears on several projects.

Elizabeth ★★★★★

I used these to secure a pulley to a motor shaft, and the socket drive made installation straightforward with a hex key. The knurling on the cup point adds extra grip for holding the part in place. A solid choice for light mechanical assemblies at this quantity.

Mia R. ★★★★★

The knurled cup points really bite into the shaft without slipping, which saved me from having to re-tighten after assembly. I went through all 1000 screws on a single machine build, and every one seated cleanly without any stripped threads.