Dongguan Situo Hardware Products Technology Co., Ltd
| Delivery Time | Communication |
| Head shape | Hexagonal |
| Precision | Min0.01 |
| Surface treatment | Passivation |
| Payment Terms | T/T |
| Grade | 12.9 |
| Supply Ability | 10000PCS per day |
| Material | stainless steel |
| Packaging Details | Communication |
| Processing technology | CNC turning |
| Certification | ISO9001 & TS16949 |
| Model Number | ST-300016 |
| Brand Name | SITUO |
| Place of Origin | GuangDong Dongguan |
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Product Specification
| Delivery Time | Communication | Head shape | Hexagonal |
| Precision | Min0.01 | Surface treatment | Passivation |
| Payment Terms | T/T | Grade | 12.9 |
| Supply Ability | 10000PCS per day | Material | stainless steel |
| Packaging Details | Communication | Processing technology | CNC turning |
| Certification | ISO9001 & TS16949 | Model Number | ST-300016 |
| Brand Name | SITUO | Place of Origin | GuangDong Dongguan |
| High Light | 12.9 grade carbon steel stud screw ，extended length stud screw ，high strength CNC screws | ||
This 12.9 Grade Carbon Steel Extended Length Stud Screw is a high-strength threaded fastener manufactured to industrial ISO and DIN specifications. Constructed from premium carbon steel with professional heat treatment, this extended stud screw delivers stable structural performance and uniform thread precision. Ideal for equipment frame connections and mechanical assemblies requiring reliable fastening solutions.
Processed with standardized heat treatment to maintain steady hardness and structural toughness. Provides reliable load-bearing capacity and excellent vibration resistance, reducing fastening loosening during long-term equipment operation.
Threads are precisely rolled with complete tooth profiles, uniform pitch, and consistent tolerance. Each product undergoes standard thread gauge inspection to ensure smooth installation and perfect matching with standard nuts and tapped holes.
Custom extended length design overcomes installation limitations of standard short screws. Ideal for thick plate connections, multi-layer structural fixing, and special spacing assemblies with flexible locking position adjustment.
One-piece integral processing ensures uniform internal structure without cracks or deformation. Fine surface finishing provides smooth texture without burrs, suitable for both manual and mechanical installation.
SITUO Hardware provides customized processing for 12.9 grade carbon steel extended stud screws. We support different thread specifications, extended lengths, and surface treatments. All products undergo strict dimension and appearance inspection before delivery, ensuring stable batch quality and flexible customization to meet various industrial assembly and engineering procurement demands.
We utilize advanced equipment and technology from Japan and Germany, including CNC 5-axis and 6-axis machines. Our maximum processing outer diameter is 60mm with minimum control tolerance of 0.001mm. Equipment includes Japanese CNC Tsugami, CNC Citizen, multi-station cold extrusion forming machines, 500T press machines, casting equipment, and various process equipment.
Our company employs 300 personnel including 20 technicians, 10 engineers, and 15 quality control specialists. We operate over 300 pieces of equipment and implement 8S management with ISO9001 and TS16949 automotive certifications.
Notable customers include , Foxconn, Motors, Husqvarna, Shimano, NVIDIA, DJI Drones, Siegenia.
| Main Products | Stainless steel screws, carbon steel screws, pins, rivets, nuts, eccentric nails, embedded parts, and other fasteners |
| Business Type | Factory / Manufacturer |
| Services | CNC Machining, Turning and Milling, CNC Turning, Cold heading, Stamping, Assembly Service |
| Materials | Aluminum: AL 6061-T6, 6063, 7075-T etc Stainless steel: 303,304,304L,316L,316F,630,410,420,430, etc Steel: 4140, Q235, Q345B,20#,45# 1215,12L14,1144,1006,1008,1010,1015,1018,10B21,1035,1065 etc. Alloy steel: 5140,4135,4140,3435,5120,415,435,440 etc Titanium: TA1,TA2/GR2, TA4/GR5, TC4, TC18 etc Brass: C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000(H90),C27000,C51900,C11000,C3604,H62,H65 etc Copper, bronze, Magnesium alloy, Delrin, POM, Acrylic, PC, etc. |
| Finishes | Sandblasting, Anodize color, Blackening, Zinc/Nickel Plating, Polish, Power coating, Passivation PVD, Titanium Plating, Electrogalvanizing, electroplating chromium, electrophoresis, QPQ(Quench-Polish-Quench), Electro Polishing, Chrome Plating, Knurl, Laser etch Logo, etc. |
| Drawing Format | STEP, STP, GIS, CAD, PDF, DWG, DXF etc or samples |
| Tolerance | +/-0.01mm ~ +/-0.05mm |
| Surface Roughness | Ra 0.1~3.2 |
| Inspection | Complete inspection lab with Micrometer, Optical Comparator, Caliper Vernier, CMM, Depth Caliper Vernier, Universal Protractor, Clock Gauge, Internal Centigrade Gauge |
Company Details
Business Type:
Manufacturer,Seller
Year Established:
2019
Total Annual:
2800000-3500000
Employee Number:
50~100
Ecer Certification：
Verified Supplier
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