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Situo Hardware specializes in custom carbon steel 1/2 threaded plugs, imperial thread pipe plugs, and CNC precision fluid pipeline fittings. Our products serve hydraulic valve block systems, pneumatic pipeline equipment, construction machinery, automation equipment, and various industrial applications.
Product Overview
Manufactured from high-quality carbon steel raw materials and precision CNC turned, these threaded plugs feature standard imperial pipe threads including NPT, BSPT, and BSPP. The precision-machined threads ensure reliable sealing and high mechanical strength for blocking reserved holes and process holes in oil and air circuits, preventing medium leakage and contamination.
Core Advantages
Premium Materials
20#/45# carbon steel with dense texture, free from pores or sand holes, ensuring high compression and impact resistance for hydraulic systems.
Precision Threading
CNC single-point threading with one-time clamping, 100% inspected by thread gauges for reliable sealing and excellent interchangeability.
Multiple Head Styles
Customizable inner hexagon, outer hexagon, and square head designs to accommodate various installation spaces and requirements.
Surface Treatments
Available options include black oxide, electro-galvanizing, hot-dip galvanizing, and phosphating for enhanced wear and rust resistance.
Custom Solutions
Flexible non-standard customization for overall length, thread length, head thickness, and specialized chamfer structures.
Quality Assurance
Comprehensive inspections including thread gauge testing, dimensional measurement, and simulated sealing tests for consistent performance.
Application Scenarios
Sealing of process holes and pressure measuring holes for hydraulic valve blocks, oil cylinders, and hydraulic power units
Blocking fittings for reserved ports of pneumatic equipment pipelines and air valves
Oil hole screw plugs for construction machinery, reducers, and gearboxes
Sealing hardware for automation modules, mold oil circuits, and fluid control systems
Thread plugs for temporary blocking and pressure testing of industrial pipelines
Carbon steel pipe plugs for leakage prevention and dust sealing on heavy machinery fluid pipelines
Manufacturing Capabilities
We utilize advanced Japanese and German CNC equipment (5-axis and 6-axis machines) with maximum processing outer diameter of 60mm and minimum control tolerance of 0.001mm.
Company Scale: 300 employees including 20 technicians, 10 engineers, and 15 quality control personnel with over 300 pieces of equipment. Quality Certifications: 8S management, ISO9001 and TS16949 automotive certifications. Notable Customers: Foxconn, Husqvarna, Shimano, NVIDIA, DJI Drones, Siegenia,
Technical Specifications
Service
Materials
Finishes
CNC Machining Turning and Milling CNC Turning Cold Heading Stamping Assembly Service
We support rapid sampling within 3-5 days, flexible small-batch orders, and stable mass production. Complete dimension inspection documents and export-grade packaging available for international orders. Our technical team provides optimized solutions for plug structure, thread standards, and surface treatments based on your specific application requirements.
