Mutual Screw & Supply

5/16-18 X 1-1/8" Socket Cap Screws | Low Head Hex Socket Drive | Alloy Steel Thermal Black Oxide (100 / Pkg.)

5/16-18 X 1-1/8" Socket Cap Screws | Low Head Hex Socket Drive | Alloy Steel - Main image
$33.88 $45.17 In stock

These 5/16-18 x 1-1/8" socket cap screws are manufactured from Alloy Steel Thermal Black Oxide, featuring a hex socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: Alloy Steel Thermal Black Oxide
  • Drive: Hex Socket Drive
  • Thread size: 5/16-18
  • Length: 1-1/8"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Drive type: Hex Socket Drive
  • Thread size: 5/16-18
  • Length: 1-1/8"
  • Threads per inch: 18
  • Measurement type: Inch
  • Pack quantity: 100 per package
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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)

Isabella ★★★★★

I’m replacing the low-profile bolts on a jig I inherited, and these low head socket caps fit where standard ones would stick out. The black oxide finish looks clean and seems like it’ll resist rust well in my shop.

Leo ★★★★★

Fit perfectly into my milling fixture’s T-slots, and the low hex head gave just enough clearance for the workpiece. The black oxide finish already saved me from a few wrench slips.

Steven F. ★★★★★

I needed a handful for a jig I was building, and the hex socket drive made install super easy. The low head profile was a pleasant surprise, letting me fit them into tight spots without any clearance issues. For the price of a 100 pack, these are solid.