Mutual Screw & Supply

MS51021-32 | Mil-Spec Set Screws | Hex Socket Drive (100 / Pkg.)

MS51021-32 | Mil-Spec Set Screws | Hex Socket Drive (100 / Pkg.) - Main image
$71.97 $109.04 In stock

These set screws feature a Hex Socket drive. They are well suited to securing components against rotation or movement along a shaft.

  • Drive: Hex Socket
  • Applications: Securing components against rotation or movement along a shaft

Specifications

  • Product type: Set Screws
  • Drive type: Hex Socket
  • Measurement type: Imperial
  • Pack quantity: 100 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: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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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)

Lucy J. ★★★★★

Finally got around to using these on a project where I needed to secure a pulley to a shaft, and the hex socket drive made installation a breeze with no stripping. The mil-spec quality really shows in the precise threading and consistent finish across all 100 pieces.

Amelia P. ★★★★★

Found these set screws perfect for locking a pulley collar onto a shaft—the hex socket drive seated cleanly without stripping, even when I torqued them down in a tight spot. A whole pack of 100 means I've got spares for future projects, and they've held firm against vibration so far. Exactly what I

Charlotte ★★★★★

The hex socket drive grips snugly, so these set screws hold fast on my shaft without slipping. Each one feels precisely machined, and the 100-count box is solid value for multiple projects.