Products for bench top machinists | LittleMachineShop.com

Nut, M6 Hardened

Nut, M6 Hardened - Main image
$0.18 $0.25 In stock

Nut, M6 hardened, with a black oxide finish. This is a metric M6 nut intended for fastening applications where a hardened nut is specified.

  • M6 metric thread size
  • Hardened construction
  • Black oxide finish
  • Brand: McMaster-Carr
  • SKU: 1226
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)

Charlotte S. ★★★★★

These are noticeably tougher than standard hardware store nuts, the hardened steel gives me confidence in high-torque applications. They threaded on smoothly without any binding, and the black oxide finish looks clean.

Natalie ★★★★★

I needed a hardened nut for a high-torque application and these M6 ones held up perfectly without any stripping. The threading was clean and consistent across all ten pieces in the pack.

Matthew Z. ★★★★★

The black oxide finish on these M6 nuts is more consistent than I expected, and they thread onto bolts without any binding.