Mutual Screw & Supply

M5-0.8 X 40mm Socket Cap Screws | Flat Head Hex Socket Drive | Partially Threaded | 316 Stainless Steel (200 / Pkg.)

M5-0.8 X 40mm Socket Cap Screws | Flat Head Hex Socket Drive | Partially - Main image
$31.56 $45.08 In stock

These M5-0.8 x 40mm socket cap screws are manufactured from 316 Stainless Steel, featuring a hex socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: 316 Stainless Steel
  • 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: 316 Stainless Steel
  • Finish: Plain
  • Grade: 316
  • Drive type: Hex Socket Drive
  • Thread style: Partially Threaded
  • Thread size: M5-0.8
  • Length: 40mm
  • Measurement type: Metric
  • Pack quantity: 200 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)

Jacob M. ★★★★★

I needed partially threaded M5 screws for a jig build, and the 40mm length was exactly right. The hex socket drive makes them easy to install even in tight spots.

Timothy ★★★★★

Finally found M5 screws in 316 stainless that are actually fully threaded for the first portion, these are great for marine gear where corrosion resistance matters. The flat head sits flush perfectly in my jig fixtures without any wobble.

Ellie ★★★★★

The hex socket drive on these M5 screws made installation much easier than I expected—no stripped heads. The 316 stainless steel feels solid and should handle outdoor use without rusting. I've already used most of the 200-pack for jig assembly and they hold tight.