Mutual Screw & Supply

M3-0.5 X 20mm Hex Head Cap Screws | Class 8.8 Steel Zinc Plated | Fully Threaded (600 / Pkg.)

M3-0.5 X 20mm Hex Head Cap Screws | Class 8.8 Steel Zinc Plated | Fully - Main image
$43.12 $65.34 In stock

M3-0.5 x 20mm hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Class 8.8 Steel Zinc Plated construction
  • Fully Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 600

Specifications

  • Thread Size: M3-0.5
  • Length: 20mm
  • Thread Pitch: 0.5mm
  • Material: Steel
  • Grade: Class 8.8
  • Finish: Zinc Plated CR+3
  • Thread Style: Fully Threaded
  • Pack Quantity: 600
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 (5.0 / 5 · 5 reviews)

Hannah Q. ★★★★★

The 8.8 steel grade gives me confidence these won't strip under moderate torque, and the zinc plating seems to be holding up fine on outdoor gear. Used a full bag on a conveyor table with no issues so far.

Edward ★★★★★

These are my go-to for jigs and fixtures, and the zinc plating has held up nicely without any rust after a few months in my shop. The fully threaded length means I can cut them to size when I need a non-standard depth.

Ellie I. ★★★★★

The hex heads grip the socket drive perfectly, and the zinc coating is clean with no burs. These are a solid choice for securing brackets on a machine build I just finished.