| Product name |
Hexagonal socket screw |
| Size |
M6/M8/M10/M12 |
| Grade |
4.8/8.8/10.9/12.9 |
| Material |
Steel/Stainless Steel |
| Surface treatment |
YZP |
| Standard |
DIN/ISO |
| Certificate |
ISO 9001 |
| Sample |
Free Samples |
1
Definition and structural characteristics
Definition: An internal hexagonal screw is a fastener with a hexagonal groove (internal hexagonal hole) on the head, which requires the use of an Allen Key or a hexagonal screwdriver head matched with an electric tool for installation and removal.
Structural features:
■
Head types: common cylindrical heads (such as ISO 4762/DIN 912), countersunk heads (such as DIN 7991), flat heads, etc., suitable for different installation requirements (such as countersunk heads used in scenarios where flush surfaces are required).
■
Thread type: full thread or half thread, with various materials and surface treatments.
2
Materials and Surface Treatment
Common materials:
●
Carbon steel (such as 8.8 grade, 12.9 grade): high strength, used in machinery and automobiles.
●
Stainless steel (304/316): corrosion-resistant, suitable for outdoor and medical equipment.
●
Titanium alloy: lightweight, high corrosion resistance, used in aerospace.
✔
Industrial field: machine tools, molds, automation equipment (high-strength connections that require frequent disassembly).
✔
Automotive/Aviation: Engine components, chassis (high temperature resistance, vibration resistance).
✔
Consumer electronics: laptops, cameras (precision small-sized screws, such as M1.6).
✔
Furniture/Bicycle: IKEA furniture assembly, bicycle brake system (countersunk anti scratch).
TIP:
The wrench should be fully inserted into the bottom of the hole to avoid sliding teeth caused by oblique force.
TIP:
When pre drilling, countersunk screws need to match the taper (such as 90 °).
TIP:
Regularly check the torque (using a torque wrench) to prevent over tightening or loosening.
Frequently Asked Questions
Q: What sizes are available for the Hexagonal socket screws?
A: Our standard sizes include M6, M8, M10, and M12, but other precision sizes such as M1.6 are also used in consumer electronics.
Q: What are the main materials used for these fasteners?
A: We provide screws in Carbon Steel (Grade 8.8/12.9), Stainless Steel (304/316), and Titanium alloy for specialized aerospace applications.
Q: Which standards do your hexagonal socket screws follow?
A: Our products comply with international standards including DIN 912, DIN 7991, and ISO 4762.
Q: What surface treatment is applied to the carbon steel screws?
A: The standard surface treatment is YZP (Yellow Zinc Plating) for enhanced corrosion resistance.
Q: Can I get samples before placing a bulk order?
A: Yes, we offer free samples for quality testing and verification.
Q: How do I prevent stripping (sliding teeth) during installation?
A: Ensure the Allen wrench or hexagonal driver is fully inserted to the bottom of the groove before applying force.
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