Mutual Screw & Supply

M5-0.8 X 30mm Socket Cap Screws | Flat Head Hex Socket Drive | Fully Threaded | Class 10.9 Alloy Steel Thermal Black Oxide (400 / Pkg.)

M5-0.8 X 30mm Socket Cap Screws | Flat Head Hex Socket Drive | Fully Threaded | - Main image
$30.2 $50.34 In stock

These M5-0.8 x 30mm 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
  • Head style: Flat Head
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M5-0.8
  • Length: 30mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Flat Head
  • 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: 30mm
  • Measurement type: Metric
  • Pack quantity: 400 per package
Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

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

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

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.4 / 5 · 5 reviews)

John X. ★★★★★

Was pleasantly surprised by how consistent the threading is across all 400 screws - not a single one jammed during assembly. The black oxide finish held up well against minor scuffs while I was tightening them into a tooling fixture.

Alexander ★★★★★

Used a full box of these on a jig build and every single one threaded clean without a single stripped head, even with a worn Allen key. The 10.9 rating gives me confidence they'll hold torque where softer stainless would've twisted off.

Hannah G. ★★★★★

The hex socket drive grips the Allen key perfectly, no stripped heads halfway through tightening a batch. Used a handful for a jig build and the 10.9 alloy steel feels properly tough, the black oxide coating looks clean too. Four hundred of these in the box will last me a while.