Mutual Screw & Supply

M5-0.8 X 18mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class 12.9 Alloy Steel Zinc Plated (400 / Pkg.)

M5-0.8 X 18mm Socket Cap Screws | Hex Socket Drive | Fully Threaded | Class - Main image
$29.02 $42.06 In stock

These M5-0.8 x 18mm socket cap screws are manufactured from Alloy Steel Zinc Plated, featuring a hex socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: Alloy Steel Zinc Plated
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M5-0.8
  • Length: 18mm
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Zinc Plated
  • Grade: Class 12.9 CR+3
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: M5-0.8
  • Length: 18mm
  • Measurement type: Metric
  • Pack quantity: 400 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)

Thomas ★★★★★

The packaging is solid, and these M5 screws thread smoothly into my jig fixtures without binding. They’re strong enough for the precision assemblies I’m building, and the zinc coating looks clean and even.

Emily I. ★★★★★

The heads are perfectly formed, so my hex key seats without any wobble — a small thing, but it makes a difference when you're assembling precision jigs. The 12.9 alloy steel feels seriously sturdy for this price, and a full box of 400 means I won't be reordering for a while.

Adam ★★★★★

The threads cut clean and the zinc plating looks uniform across all 400 pieces, which is a relief for a batch this size. I've used them for jig assembly and the class 12.9 hardness gives me confidence they'll hold up under repeated torque.