720pcs M3*4/6/8/10/12 Black Alloy Steel Flat Head Hex Socket Screws Set

These Black Alloy Steel Grade 10.9 Button & Flat Socket Head Screws are designed for high-strength applications where durability and reliability are critical. Made from premium black alloy steel, these screws feature a robust Grade 10.9 hardness rating, making them ideal for heavy-duty mechanical and engineering projects.

The set includes 720 pieces of screws in two distinct head types:

1. Button Head: Offers a low-profile, rounded head for applications requiring a clean finish and limited clearance.
2. Flat Socket Head: Features a flat, recessed head that provides a sleek appearance and is designed for high-torque applications where a secure fit is essential.

Features:

1、Made of alloy steel material, good corrosion resistance and never rust, durable to use.

2、Equipped with a stic box, you can classify screws in an organized manner, more convenient to carry and take out.

3、Use this fastener with the hex wrench, hold the mechanical parts firmly in ce.

4、Different sizes for general purpose use, meet all your need.

5、Used widely in the home and office appliance, furniture and other machinery industry.

Package includes:

720x Button Flat Socket Head Screws:

Button Head:

100pcs x M3*4

80pcs x M3*6

70pcs x M3*8

60pcs x M3*10

50pcs x M3*12

Flat Head:

100pcs x M3*4

80pcs x M3*6

70pcs x M3*8

60pcs x M3*10

50pcs x M3*12