What types of fasteners does YH Fastener manufacture?

We manufacture machine screws, self tapping screws, sealing screws, shoulder screws, sems screws, captive screws, security screws, nylon patch screws, carbide insert screws and set screws, plus hex keys, Torx keys and spring and ball plungers, in both standard and custom versions.

Can you produce non-standard screws from my drawings?

Yes. Our engineering team reviews 2D drawings, 3D models or physical samples, confirms material, head style, drive, thread and finish, and then builds tooling for cold heading and thread rolling. Non-standard and international-standard parts are both supported.

Which quality certifications does your factory hold?

Our production system operates under ISO 9001, ISO 14001 and IATF 16949. Every batch passes multi-stage inspection from incoming wire rod to final packing, and inspection records can be provided with shipments.

How do you prevent screws from loosening under vibration?

Depending on the application we recommend pre-applied nylon patches, sems screws with captive washers, or shoulder and sealing designs. The right solution is selected based on joint material, required re-use cycles, torque and operating temperature.

Do you export to my country and how do I start a project?

YH Fastener ships to more than 60 countries. Request our catalog or contact our sales engineers with your drawing, quantity and target application, and we will reply with a technical review within 24 hours.

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OEM Black Hex Head Cross Recess Combination Machine Screw with Double Washer for Industrial Assembly Manufacturers, Factory

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OEM Black Hex Head Cross Recess Combination Machine Screw with Double Washer for Industrial Assembly Manufacturers, Factory

Hex head cross recess combination machine screw with double washer design for efficient installation and stable fastening in industrial assemblies.
Size: M0.8–M24 (custom drawing)
Material:
Stainless Steel (201/303/304/316/410/416/430)
Carbon Steel (1008/1012/1018/1022/1035/1039/40Cr)
Copper (H62/H65/H68)
Aluminum (5056/6061/6063/7075)
Alloy Steel (SCM435/10B21/6150/S2)
Surface:
Zinc, Nickel, Passivated, Tin
Black Oxide, Anodized, Polished, Chrome
Hot-Dip Galvanized (H.D.G)

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Frequently Asked Questions

Q: What are SEMS screws?

SEMS screws are precision machine screws manufactured with pre-assembled free-spinning washers. The combination simplifies installation, prevents lost components, and speeds up assembly processes.

Q: Which materials are used for these precision screws?

These screws are primarily manufactured from high-grade stainless steel for corrosion resistance, as well as zinc-plated carbon steel for high tensile strength and wear durability.

Q: What drive types and head styles are available?

The range features versatile head styles including standard pan heads and hexagonal heads, paired with universal drive types such as Phillips and combination cross-slots.

Q: Can these screws be utilized in high-precision electronic equipment?

Yes, the precision manufacturing standards ensure exact tolerances, making them suitable for electronics, instrumentation, consumer devices, and automotive components.

Q: Are bulk orders and custom dimensions supported?

Wholesale production supports customized dimensions, threading standards, washer configurations, and specialized surface finishes to meet precise engineering specifications.

OEM Black Hex Head Cross Recess Combination Machine Screw with Double Washer for Industrial Assembly Manufacturers, Factory

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