Mutual Screw & Supply

M4-0.7 X 20mm Socket Cap Screws | Flat Head Hex Socket Drive | Fully Threaded | Class 10.9 Alloy Steel Thermal Black Oxide (600 / Pkg.)

M4-0.7 X 20mm Socket Cap Screws | Flat Head Hex Socket Drive | Fully Threaded | - Main image
$30.3 $47.34 In stock

These M4-0.7 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
  • Head style: Flat Head
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M4-0.7
  • Length: 20mm
  • 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: M4-0.7
  • Length: 20mm
  • Measurement type: Metric
  • Pack quantity: 600 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 (4.8 / 5 · 5 reviews)

Carter ★★★★★

Installing these into my latest jig build was a breeze, the hex drive didn't strip even when torquing them down tight. The black oxide finish seems durable, definitely a solid choice for precision assemblies.

William O. ★★★★★

The hex socket drive gripped my Allen key perfectly on all 600 pieces—not a single stripped head across three jigs I built this week. Class 10.9 alloy steel feels substantial, and the black oxide finish has that proper machinist look.

Adam ★★★★★

I was worried the black oxide finish would rub off during assembly, but after installing 50 of these M4 screws into a jig, they still look brand new. The hex socket drive made it easy to apply solid torque without stripping.