Mutual Screw & Supply

M5-0.8 X 40mm Socket Cap Screws | Flat Head Hex Socket Drive | Partially Threaded | Class 10.9 Alloy Steel Zinc Plated (400 / Pkg.)

M5-0.8 X 40mm Socket Cap Screws | Flat Head Hex Socket Drive | Partially - Main image
$33.22 $48.86 In stock

These M5-0.8 x 40mm socket cap screws are manufactured from Alloy Steel Zinc Plated, featuring a hex socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: Alloy Steel Zinc Plated
  • Head style: Flat Head
  • Drive: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M5-0.8
  • Length: 40mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Head style: Flat Head
  • Material: Alloy Steel
  • Finish: Zinc Plated
  • Grade: Class 10.9 CR+3
  • Drive type: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M5-0.8
  • Length: 40mm
  • 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 (4.2 / 5 · 5 reviews)

Aurora V. ★★★★★

I’m building a small jig for a milling fixture and the 10.9 alloy steel gives these screws a solid feel without being brittle. The hex socket drive made installation much easier than a standard slot, and the 40mm length is just right for my application.

Adam B. ★★★★★

These M5 screws fit perfectly into my 3D-printed jig setup, and the flat head sits flush without snagging. The zinc coating looks clean and should resist rust in my garage workshop. A solid buy for precision assemblies.

Elizabeth ★★★★☆

The partially threaded shank made these perfect for a clamping jig I was building. Took a bit of effort to drive the hex socket, but the 10.9 alloy steel feels solid and durable.