Mutual Screw & Supply

M5-0.8 X 20mm Socket Cap Screws | Low Head Hex Socket Drive | Fully Threaded | Class 10.9 Alloy Steel Thermal Black Oxide (400 / Pkg.)

M5-0.8 X 20mm Socket Cap Screws | Low Head Hex Socket Drive | Fully Threaded | - Main image
$43.98 $58.64 In stock

These M5-0.8 x 20mm 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 style: Fully Threaded
  • Thread size: M5-0.8
  • Length: 20mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Grade: Class 10.9
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M5-0.8
  • Length: 20mm
  • Measurement type: Metric
  • Pack quantity: 400 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 (4.0 / 5 · 5 reviews)

Jacob P. ★★★★★

The black oxide finish on these screws looks professional and seems durable—no nicks after installing a batch into a steel fixture. Threads ran smooth with a hex key, and the low head profile was perfect for a tight clearance spot on my assembly.

Joseph M. ★★★★☆

Bought these for a jig I’m building, and the black oxide coating gives them a nice uniform finish that doesn’t glare under work lights. The low head profile is handy in tight spots, though I wish the hex socket was a touch deeper for easier engagement on the last few turns.

Sophia ★★★★☆

Thread engagement feels solid and consistent across all 400 pieces, which is exactly what I needed for jig assembly. The black oxide coating seems durable so far, though I wish the hex socket was a hair deeper for better bit grip.