Reliable HDG Coated Custom Screws with Galvanized Coating and High Strength Grade for Automobile Fasteners

Reliable Custom Size Screws with Premium Galvanized Coating

High-quality HDG custom screws and bolts manufactured to your exact specifications based on client samples.

Product Specifications

Material Options	Stainless Steel: SUS201, SS303, SS304, SS316, SS410, SS430; Carbon Steel: C1018, C1022, 10B21; Alloy Steel: 40Cr, SCM435; Brass; Aluminum; Copper; Customized materials available
Head Style Options	Pan, Truss, Flat, Hexagonal, Round, HEX, Cheese, Binding, Oval
Drive Style Options	Phillips, Torx, Inner Hexagonal, Hexagonal, Plum, Cross, Slotted, Star
Thread Type Options	Self-tapping, Machine teeth (Coarse teeth, Fine teeth), Custom thread patterns
Standards	DIN, ISO, ANSI, BSW, JIS, GOST, GB
Finish Options	Plated: Zinc, Zinc nickel alloy, Chrome, Silver, Gold, Brass, Tin; Coating: Dacromet, MAGni, Geomet, Electrophoresis, Baking paint; Passivation; Oxide: Black Oxide, Anodic oxidation
Fastener Performance	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
Anticorrosion Requirements	Customizable salt spray testing: 12H, 24H, 48H, 96H, 196H, 240H, 480H, 720H, 840H
Size Range	M0.6mm, M0.8mm to M36mm
Length Range	1mm to 600mm

Screw Types Available

• Tapping screws
• Machine screws
• Wood screws
• Drywall screws
• Cross recessed screws
• Concrete screws
• Torx screws
• Hex cap screws
• Hex socket head screws
• Set screws
• Shoulder screws
• Thumb screws
• Binding screws
• Flange screws
• Screw bolts
• Standoff screws
• Mini screws
• All custom products

Quality & Compliance

Environmental Data: Rohs, SCHV, MSDS, IMDS

Quality Testing: Performance test reports, Salt spray test reports, Dimensional inspection reports, PPAP, PSW

Logistics & Ordering

Transportation	Fedex, DHL, UPS, or as per customer requirements
Packaging	Independent carton, Self-sealing bag, Blister, Vacuum packaging, Pallet, etc.
Samples	Free samples available, small batch trial production orders accepted
Lead Time	Samples: 5-7 days; Mass production: 15-25 days; Negotiable
MOQ	Products in stock: Minimum 500pcs; Custom size and materials: Minimum 5000pcs; Negotiable

About Lock Technology (Shenzhen) Co., Ltd.

Lock Technology (Shenzhen) Co., Ltd. is a pioneering leader in fastener and precision machined parts production. Since our inception in 2007, our cutting-edge facility in Shenzhen has been dedicated to upholding the highest standards of quality and precision. We established an overseas sales entity in 2013, enhancing our ability to deliver bespoke service and innovative solutions to international clientele.

Our products serve industries spanning automotive, electronics, electrical appliances, household utilities, communications, consumer electronics, optical, and medical devices. Located in Pingshan District of Shenzhen, our 40,000 square meters facility is equipped with comprehensive cold heading machines, thread rolling machines, CAM lathes, CNC lathes, CNC milling machines, and more.

With over 1,000 advanced pieces of equipment and 300 distinct inspection tools, our annual production and sales have surpassed the $10 million milestone. Our offerings are renowned for outstanding quality and superior service, with a robust presence across Europe, America, Africa, and Southeast Asia.

Our Advantages

Certifications

We have achieved prestigious certifications including ISO9001, IATF16949, ISO14001, ISO45001, alongside other esteemed system certifications, highlighting our dedication to excellence in quality management, sustainability, and occupational health and safety.

Packaging & Shipping

Quantity (pieces)	1 – 10,000	10,001 – 50,000	50,001 – 100,000	> 100,000
Lead Time (days)	10	15	20	To be negotiated

Partners & Logistics

Our international footprint is vast, having successfully met the needs of over 300 esteemed customers. Our products are highly valued across more than 20 countries and regions, including Europe, North America, South America, and Southeast Asia, a testament to our relentless pursuit of quality excellence and customer satisfaction.

Frequently Asked Questions

Q1: Can you provide customized services?

A: Yes, we accept OEM/ODM Services. We have 20+ years experience in custom non-standard screws. If you do not have a drawing, we can freely provide product drawings based on your requirements.

Q2: Can you supply the samples?

A: Yes, we can provide free samples if we have the mold (or tooling). If not, the mold cost and shipping cost should be on the customers’ account.

Q3: How can you ensure the quality?

A: We have a professional QC department to guarantee quality. We strictly implement ISO9001, IATF16949, ISO14001, SGS, RoHs, PPAP, MSDS etc. We can create part drawings for your confirmation and send samples for additional verification.

Q4: What is the MOQ?

A: For high value products, our MOQ starts from 1000-10000 pieces. For other low value products, our MOQ starts from 20,000 pieces. We are open to accepting trial orders before initiating mass production.

Q5: How about the transportation?

A: You can choose any mode of transportation you want: sea delivery, air delivery, or door-to-door express.

Q6: How to place order and make payment?

A: You can send us a Purchase order (if your company has one), or simply send a confirmation by email or TradeManager. We will send you a Proforma Invoice with our bank details. Paypal and L/C are available for your confirmation, then you can make payment accordingly.