Mutual Screw & Supply

5/16-18 X 1-3/4" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially Threaded (100 / Pkg.)

5/16-18 X 1-3/4" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially - Main image
$22.18 $35.77 In stock

5/16-18 x 1-3/4" hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Grade 5 Steel Yellow Zinc construction
  • Partially Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 100

Specifications

  • Thread Size: 5/16-18
  • Length: 1-3/4"
  • Threads Per Inch: 18
  • Material: Steel
  • Grade: Grade 5
  • Finish: Yellow Zinc CR+6
  • Thread Style: Partially Threaded
  • Pack Quantity: 100
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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 (4.8 / 5 · 5 reviews)

Jason ★★★★★

The threads grabbed cleanly on the first try and the yellow zinc finish looks uniform across all 100 pieces. Used them to bolt down a steel bracket on my milling stand, and the partial threading made alignment way easier than dealing with fully threaded bolts.

Violet T. ★★★★★

Was looking for a partially threaded 5/16 bolt for a jig I'm building and these fit the bill perfectly. The yellow zinc coating is consistent and the threads were clean, no issues starting them by hand.

Steven Z. ★★★★★

I’ve been using these for mounting a small engine bracket, and the partial thread lets me get a solid bite without bottoming out. The hex head fits my socket perfectly, so far no stripping or rust.