Mutual Screw & Supply

#4-40 X 5/16" Cone Point SEMS Sem Screws | Pan Head Square Drive | Steel Trivalent Zinc (5000 / Pkg.)

#4-40 X 5/16" Cone Point SEMS Sem Screws | Pan Head Square Drive | Steel - Main image
$49.56 $77.43 In stock

These #4-40 x 5/16" sem screws are manufactured from Steel with a trivalent zinc finish, featuring a square drive and a pan head. They are well suited to general fastening and assembly work.

  • Material and finish: Steel, Trivalent Zinc finish
  • Drive: Square
  • Head style: Pan
  • Thread size: #4-40
  • Length: 5/16"
  • Applications: General fastening and assembly work

Specifications

  • Product type: Sem Screws
  • Material: Steel
  • Finish: Trivalent Zinc
  • Head style: Pan
  • Drive type: Square
  • Thread size: #4-40
  • Length: 5/16"
  • Threads per inch: 40
  • Measurement type: Imperial
  • Features: Cone Point; SEMS
  • Pack quantity: 5000 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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Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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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)

Eli ★★★★★

The cone point on these #4-40 screws bites into the metal cleanly every time, no wandering or stripped holes. The square drive holds tight without camming out, and the trivalent zinc finish looks even and corrosion-resistant. A full 5000 count means I won't run out mid-project, and they've been cons

Amelia ★★★★★

The square drive on these #4-40 screws grabs perfectly without stripping, and the cone point makes alignment a breeze even in tight spots. The trivalent zinc finish looks clean and consistent across all 5,000 pieces—definitely a solid buy for general assembly work.

Madison ★★★★★

I've been through about half the box already on a sheet metal job, and the square drive holds the bit much better than a Phillips ever did. The cone point starts true and the threads cut clean without any binding.