Mutual Screw & Supply

M30-3.5 X 90mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class 12.9 Alloy Steel Thermal Black Oxide (5 / Pkg.)

M30-3.5 X 90mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class - Main image
$50.09 $79.51 In stock

These M30-3.5 x 90mm 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
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M30-3.5
  • Length: 90mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Grade: Class 12.9
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M30-3.5
  • Length: 90mm
  • Measurement type: Metric
  • Pack quantity: 5 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)

Adam D. ★★★★★

The black oxide coating on these gives them a nice grip without being sticky, and the hex socket drive made torquing them down into my machine frame a breeze. For the price per piece, the 12.9 alloy steel feels like serious overkill for my home shop, but I’ll take the durability.

Kevin I. ★★★★★

These screws fit perfectly into my jig's threaded holes, and the 90mm length was just what I needed for a thick assembly. The hex socket drive made torquing them down easy with a simple allen key.

Stella ★★★★★

The black oxide finish on these M30 screws gives them a nice, consistent look and they threaded into my jig smoothly without binding. The hex socket drive held up well under the impact wrench, and the 12.9 grade steel feels solid for the heavy clamping force needed. Exactly what I needed for a sturd