Custom-Thread Flat Head Screws with Hardened Carburized Surfaces
Precision-engineered fasteners with length customization range from 1mm to 600mm, designed for common bolt connections.
![Custom flat head screws with hardened carburized surfaces]()
Precision-Tailored Fastening Solutions
Our custom non-standard cold heading screws are manufactured using advanced multi-station cold heading equipment and precision mold technology. These high-accuracy, high-strength fasteners are ideal for automotive, electronics, machinery, and industrial applications.
Every Screw, a Masterpiece of Reliable Connection
Product Specifications
| Material Options | Head Style Options | Measurement System |
- Stainless Steel: SUS201, SS303, SS304, SS316, SS410, SS430
- Carbon Steel: C1018, C1022, 10B21
- Alloy Steel: 40Cr, SCM435
- Brass, Aluminum, Copper
- Custom materials available
| - Pan, Truss, Flat, Hexagonal
- Round, HEX, Cheese, Binding, Oval
| INCH, Metric |
| Drive Style Options | Thread Type Options | Standards |
- Phillips, Torx, Inner Hexagonal
- Hexagonal, Plum, Cross, Slotted, Star
| - Self-tapping
- Machine teeth (Coarse/Fine)
- Custom thread designs
| DIN/ISO/ANSI/DIN/BSW/JIS/GOST/GB |
| Finish Options | Fastener Performance | Environmental Data |
- Plated: Zinc, Zinc nickel alloy, Chrome, Silver, Gold, Brass, Tin
- Coating: Dacromet, MAGni, Geomet, Electrophoresis, Baking paint
- Passivation, Black Oxide, Anodic oxidation
| - Carbon Steel: 4.8~12.9 grade
- Stainless Steel: A2-70, A4-70, A4-80, A5-80
- Hardening of carburized surfaces: HV400-HV550
- Custom specifications available
| Rohs, SCHV, MSDS, IMDS |
Additional Specifications
| Size Customization Range | Length Customization Range | Anticorrosion Requirements |
| M0.6mm to M36mm | 1mm to 600mm | Customizable salt spray testing: 12H to 840H |
| Quality Testing | Screw Types Available | Transportation |
- Performance test reports
- Salt spray test reports
- Dimensional inspection reports
- PPAP, PSW documentation
| - Tapping screws, Machine screws, Wood screws
- Drywall screws, Concrete screws, Torx screws
- Hex cap screws, Set screws, Shoulder screws
- All custom products available
| Fedex, DHL, UPS, or customer-specified |
| Packaging Options | Samples | Lead Time |
- Independent carton
- Self-sealing bag, Blister
- Vacuum packaging, Pallet
| Free samples available, small batch trial production accepted | - Samples: 5-7 days
- Mass production: 15-25 days
- Negotiable timelines
|
| Minimum Order Quantity | - Products in stock: Min. 500pcs
- Custom size/materials: Min. 5000pcs
- Negotiable quantities
|
![Various custom screw products]()
Company Profile
Lock Technology (Shenzhen) Co., Ltd. specializes in fastener and precision machined parts manufacturing since 2007. With an overseas sales company established in 2013, we serve global customers across multiple industries.
Our products are widely used in:
- Automotive and electronics
- Electrical equipment and household appliances
- Communication and consumer electronics
- Optical equipment, engineering, and medical devices
Our 40,000 square meter facility in Shenzhen features:
- 1000+ production equipment including cold heading machines, thread rolling equipment, CAM lathes, CNC machines
- 300+ inspection equipment types
- Annual production value exceeding $10 million
Our products are exported to Europe, America, Africa, and Southeast Asia, recognized for quality and service excellence.
![Manufacturing workshop]()
![Company certifications]()
![Our partners]()
Frequently Asked Questions
Q1: Can you provide customized services?
A: Yes, we offer OEM/ODM services with 20+ years experience in custom non-standard screws. We can create product drawings based on your requirements if none are provided.
Q2: Can you supply samples?
A: Yes, we provide samples for existing tooling. For new tooling, tooling costs apply and shipping is customer's responsibility.
Q3: How do you ensure quality?
A: Our professional QC department follows IATF16969, IS9001 quality control and ISO14001 environment management standards. We provide drawings for approval and samples for final confirmation.
Q4: What is your minimum order quantity?
A: For high-value products, MOQ starts at 1000-10,000pcs. For other products, MOQ begins at 20,000pcs.
Q5: What transportation options are available?
A: You may choose sea, air, or door-to-door express delivery according to your requirements.
