{"id":2390,"date":"2026-04-27T09:28:19","date_gmt":"2026-04-27T09:28:19","guid":{"rendered":"https:\/\/haomaerprecision.com\/?post_type=product&p=2390"},"modified":"2026-04-27T09:28:19","modified_gmt":"2026-04-27T09:28:19","slug":"socket-shoulder-screw","status":"publish","type":"product","link":"https:\/\/haomaerprecision.com\/zh\/product\/socket-shoulder-screw\/","title":{"rendered":"Socket Shoulder Screw,"},"content":{"rendered":"

\"\"<\/p>\n

Material: Typically fabricated from 304 Stainless Steel or Alloy Steel (SCM435). Stainless steel offers excellent corrosion resistance and stability, while alloy steel (often heat-treated) provides superior tensile strength and hardness for heavy-duty applications.
\nEquipment: Precision CNC Lathes, Cold Heading Machines, and Thread Rolling Machines.<\/p>\n

Mechanical Processing:
\nCold Heading: The head and shoulder are often formed using precision cold heading for high strength and material integrity.
\nCNC Turning: The shoulder diameter and length are precision-ground or turned to achieve tight tolerances (typically h7 or h9).
\nThread Rolling: Threads are formed by rolling rather than cutting to increase fatigue strength.
\nPost-Processing: Heat treatment (for alloy steel) to achieve required hardness (e.g., 40-45 HRC), followed by surface cleaning or passivation (for stainless steel).
\nProduct Advantages<\/p>\n

High Shear Strength: The unthreaded shoulder is designed to withstand significant lateral (shear) forces, making it much stronger than standard screws in pivot applications.
\nPrecision Alignment: The tight tolerance on the shoulder diameter ensures precise centering and alignment of moving parts, such as stripper plates in molds.
\nDurability: The combination of high-grade metal and heat treatment ensures long service life even under repetitive stress and friction.<\/p>\n

Use Scenarios
\nMold & Die Industry: Widely used as stripper bolts in injection molds to control the movement and spacing of stripper plates.
\nAutomation Machinery: Serving as precision pivot pins or axles for robotic arms, linkages, and conveyors.
\nPrecision Instruments: Used in optical devices or measuring equipment where accurate spacing and rigid fastening are critical.
\nAutomotive Assembly: Acting as a guide pin or locating bolt in engine components or chassis assembly.<\/p>","protected":false},"excerpt":{"rendered":"

Processing Cycle: 3-10 Days (depends on the complexity of heat treatment and precision grinding requirements).
\nProduct Advantages: Advanced CNC and cold heading technologies allow for the mass production of fasteners with exceptional dimensional accuracy and mechanical properties, ensuring reliability in high-stress mechanical systems.<\/p>\n

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