Mutual Screw & Supply

M20-2.5 X 80mm Socket Cap Screws | Flat Head Hex Socket Drive | Partially Threaded | Class 10.9 Alloy Steel Thermal Black Oxide (25 / Pkg.)

M20-2.5 X 80mm Socket Cap Screws | Flat Head Hex Socket Drive | Partially - Main image
$70.05 $112.99 In stock

These M20-2.5 x 80mm 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: Partially Threaded
  • Thread size: M20-2.5
  • Length: 80mm
  • 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: Partially Threaded
  • Thread size: M20-2.5
  • Length: 80mm
  • Measurement type: Metric
  • Pack quantity: 25 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 (4.6 / 5 · 5 reviews)

Zoe ★★★★★

I needed these for a jig fixture in my shop, and the partially threaded design let me get consistent clamping force without binding. The Class 10.9 alloy steel feels solid and the hex drive seated easily with a standard Allen key.

Timothy ★★★★★

The black oxide finish looks sharp and seems tough enough for my jig builds—the hex socket drive seated perfectly with my Allen key. Threads were clean out of the pack, and the 10.9 rating gives me confidence for heavier loads.

Elizabeth ★★★★★

I needed hardened bolts for a machine jig build and these 10.9 alloy screws handled the torque perfectly. The hex socket drive made tightening them in a tight spot much easier than a regular hex head. Nice finish on the black oxide too, no rough edges.