Shoulder Screws
Precision Stainless Steel Shoulder Screw Metric Imperial Shoulder Screw for Mold Automotive Automation Mechanical Fastening
Product Overview
Shoulder Screw, also named shoulder bolt, is a professional precision fastener widely used in industrial manufacturing. Different from standard screws, it consists of three core parts: head, smooth unthreaded shoulder and threaded section. Our Shoulder Screw is manufactured under strict production standards, with ultra-tight tolerance, smooth surface and stable mechanical property. It acts as pivot, positioning shaft and fixing part, perfectly solving assembly deviation, loose connection and poor rotation flexibility in mechanical structures. We supply full series metric and imperial Shoulder Screw to meet diverse industrial demands.
Product Features & Core Advantages
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High Precision Machining: The unthreaded shoulder of Shoulder Screw adopts precision grinding process, with strict dimensional tolerance, ensuring high concentricity and accurate positioning during assembly.
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Superior Material Performance: Mainly made of 304/316 stainless steel and alloy steel. The stainless steel Shoulder Screw owns outstanding anti-rust and anti-corrosion ability, suitable for humid and harsh working environment. Alloy steel version features high hardness, strong shear resistance and vibration resistance.
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Special Structural Design: The separated structure of smooth shoulder and thread divides force reasonably. The shoulder bears radial force while thread completes locking, greatly improving connection stability and service life.
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Wide Compatibility: Standard size design enables our Shoulder Screw to match most mechanical parts, easy for installation and replacement.
Technical Parameters & Specifications
We provide complete specifications of Shoulder Screw, covering metric and imperial series. All products comply with ISO 7379, ASME B18.3 and related industrial standards.
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Material: 304 Stainless Steel, 316 Stainless Steel, Alloy Steel
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Drive Type: Hex socket, slotted
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Surface Treatment: Polishing, Black zinc plating, Passivation
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Tolerance Grade: Precision grade & Commercial grade
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Size Range: Multiple shoulder diameter, shoulder length and thread size for selection
Application Scenarios & Industry Cases
Shoulder Screw is an essential fastener for multiple B2B industries:
- Mold Manufacturing: Shoulder Screw fixes stripper plates and guide components, keeping high precision during long-term high-pressure operation.
- Automotive Industry: Used for gear, pulley and cam assembly, acting as pivot parts to ensure smooth operation of vehicle transmission systems.
- Automation & Robotics: Applied to robot joints and automated production lines, providing flexible rotation and reliable positioning.
- General Machinery & Aerospace: Ideal for fixture, bearing assembly and precision equipment, supporting long-time continuous operation.
Product Value & Solution
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Our high-quality Shoulder Screw effectively solves common pain points for industrial buyers: low assembly precision, easy rusting, loose connection and short service life. Stable quality reduces equipment maintenance frequency and replacement cost for your production line. As a professional Shoulder Screw supplier, we support standard products and customized service, to provide one-stop fastening solutions for your mechanical assembly projects. All goods are strictly inspected before delivery to guarantee consistent quality for bulk orders.
Production & Quality Control
Every batch of Shoulder Screw goes through raw material inspection, CNC machining, surface treatment, dimensional testing and finished product inspection. We follow complete quality management system to control every production link. The precision, surface finish and mechanical performance of each Shoulder Screw reach international industrial standards. Reliable quality wins recognition from global industrial clients.
Purchase Support & Inquiry
We support bulk wholesale, mixed batch ordering and customized Shoulder Screw according to drawings. If you have demands on size, material or surface treatment of Shoulder Screw, please fill in the inquiry form below. Our professional sales team will reply you with detailed quotation, lead time and technical support at the first time. We offer stable supply and thoughtful after-sales service for global business partners.
Inquiry Form
Please leave your name, company, required Shoulder Screw specifications, order quantity and contact information in the form. We will tailor the most suitable solution for your project.