Mutual Screw & Supply

M6-1 X 20mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class 8.8 Alloy Steel Thermal Black Oxide (600 / Pkg.)

M6-1 X 20mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class 8.8 - Main image
$32.8 $48.96 In stock

These M6-1 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
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M6-1
  • Length: 20mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Thermal Black Oxide
  • Grade: Class 8.8
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M6-1
  • 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 (4.2 / 5 · 5 reviews)

Chloe ★★★★★

Used these in a jig I built for a production run and the black oxide finish held up perfectly with no galling. The hex socket drive made them quick to install even in tight spots.

Richard P. ★★★★★

Was a little worried about the thread quality on a bulk pack, but every single one of these M6 screws threaded smoothly into my steel jig plate. The hex socket drive felt precise and the black oxide coating looks professional.

Ellie ★★★★★

The black oxide finish on these screws really helps them resist rust in my damp workshop. The hex socket drive grips perfectly with my T-handle Allen wrench, so I can torque them exactly where needed. For precision assemblies, this bulk pack is exactly what I needed.