Since 1998
Custom Screw manufacturers
- Save up to 30% with direct factory pricing
- Deliver custom screws in 3-10 days, large orders in 7-20 days
- 99.5% quality rate with ISO9001 & IATF16949 certification
- 1-on-1 engineer support for 24/7 problem-solving
A legacy of precision screw manufacturing, powered by a 48,000㎡ factory and 200+ production machines.
Full material and production records with batch samples retained for 3 years for complete peace of mind.
A 13+ member R&D team and 30+ QC staff ensure your project's success from design to delivery.
Precision-Engineered Custom Screws
From a wide range of standard parts to complete custom designs, we provide end-to-end screw solutions that save you time and reduce complexity.
- Tolerance: ±0.01mm
- Concentricity: <0.05mm
- Hardness: HRC 38-44
- Tensile ≥1220MPa
- Salt Spray Test ≥1000h
- Tolerance: ±0.01mm
- Strength: Up to Grade 12.9
- Tensile Strength ≥ 1220 MPa
- Hard Chrome, gold plated, etc.
- Free DFM Analysis
- Length: 1-2000mm
- Strength: Up to Grade 12.9
- Salt Spray Test ≥240h
- Straightness: ±2°
- Free DFM Analysis
- Diameter: M0.6 - M3.0
- Length: 1 - 800mm
- Strength: Up to Grade 12.9
- MOQ: 10K PCS
- Free DFM Analysis
- Material: SUS316/ A286/ 17-4PH
- Strength: A4-80 / 1300 MPa
- Service Temp.: 800°C /1300°C
- Salt Spray Test: ≥1000h
- Free DFM & Sample
- Material: Gr.2 / Gr.5 (Ti-6Al-4V)
- Surface: Anodizing (Colorful)
- Coating thickness: 5-25μm
- Free DFM & Material Cert
- MOQ Available
- Material: C11000 / C14500 / 841
- Conductivity: ≥98% IACS
- Antibacterial Rate: >99.9%
- Surface: Anti-tarnish/ Tin Plating
- Free DFM & Sample
- Material: 6061/6063-T6/7075-T6
- Surface: Anodizing (Colorful)
- Surface Hardness up to HV500+
- Strength: 310 MPa / 570 MPa
- Free DFM & Sample
Fully Customizable
Custom screws to fit your project
- Materi:Stainless Steel/ Carbon steel/ Titanium/ Aluminum/ Copper
- Core Material: A286, 316L, A2-80, TA2, GR4, GR5, 6063-T6, etc
- Size: M1-M16, Length up to 2000mm.
- Surface: Anodizing, gold plating, Dacromet, zinc-nickel alloy, etc.
- Color: Special colors can be customized
- Mould cost: 100% Rebate After Mass Production.
Custom Screw Advantage
Perfect Design Match
No more compromises with standard parts. Customize every aspect from dimensions and head style to thread type for a perfect fit with your product structure.
Fast Response & Delivery
Dedicated sampling channels and VIP production scheduling significantly shorten lead times and help accelerate your project timeline.
Strict Quality Control
Complete quality control system from raw materials to finished products ensures every screw meets the highest quality standards.
Optimized Performance
Professional material selection and heat treatment solutions tailored for specific needs like high strength, corrosion resistance, or conductivity.
Cost Optimization
Avoid over-engineering and reduce total costs through design optimization and our mold cost rebate program.
Professional Service
One-stop professional service from technical consultation to after-sales support ensures smooth project implementation.
Our Quality Testing
20+ Professional Tests, 100% Quality Guaranteed
Hardness Test Analysis
Using Rockwell & Vickers hardness testers: Grade 8.8 HRC 22-32, Grade 12.9 HRC 39-44
Mechanical Performance Test
According to ISO 898-1: tensile strength & yield strength tested, Grade 12.9 screw strength ≥1220MPa
Coating Thickness Test
Using X-ray fluorescence thickness gauge to accurately measure zinc/nickel coating thickness, ensuring 5-40μm process requirements
Salt Spray Test
Strictly follows ASTM B117 standard: 72h no white rust for zinc plating, 1000h no red rust for Dacromet coating
Hydrogen Embrittlement Test
Strictly following ASTM F1940 standard, conducting 200-hour sustained load testing to eliminate hydrogen embrittlement risk
Hexavalent Chromium Test
According to ROHS standard, using UV-Vis spectrophotometry to ensure hexavalent chromium content meets EU limits
About Shi Shi Tong
27 years specializing in precision screw manufacturing, trusted by global industrial clients. 48,000㎡ production base with 4 specialized factories, daily output 30 million pieces. ISO9001 & IATF16949 certified with full-process quality traceability.
13-member R&D team led by 23-year experienced engineers, 1-hour technical response. Micron-level precision for automotive, new energy, medical, and aerospace applications.
Products exported to 80+ countries, serving 120+ overseas distributors. One-stop custom solutions from design to production, delivering reliable quality as your essential precision screw partner.
Inside Our Production Line
Witness the birth of every precision screw
Professional, enthusiastic and reliable custom screw specialists
I have 27 years of experience in the industry, which allows me to quickly understand your needs and develop the most suitable procurement plan for you.
Certified Commitment
Your Assurance of Quality, Backed by Authoritative Certifications
Our Valued Partnerships
Every smile represents a success story. Every testimonial drives us forward.
Want to Skip Middlemen and Work Directly with a Source Factory?
With 27 years of screw manufacturing expertise, we offer:
OEM/ODM – Customize dimensions, materials & finish
Cost Saving – Eliminate intermediaries, get factory-direct prices
Quality Assurance – ISO9001 & IATF16949 certified
Get Samples Now !
Submit your requirements now to receive a free technical consultation, custom sample solutions, and a competitive quote within 24 hours.
