The 304 Stainless Steel Round Head Socket Cap Screw (DIN 7991) is a precision-engineered metric fastener designed for flush, secure, and high-strength assembly in machinery, electronics, structural components, and industrial equipment. Manufactured from corrosion-resistant 304 stainless steel and produced in compliance with DIN 7991 dimensional standards, this screw ensures consistent thread accuracy and reliable fastening performance.
Featuring a round head profile with internal hex socket (Allen drive), it supports high torque installation while maintaining a clean and compact surface finish.
⚙️ Hex Socket (Allen) Drive – Higher Torque Control
The internal hex socket drive provides:
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Higher torque transmission than Phillips or slotted drives
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Reduced cam-out risk
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Better tool engagement
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Suitable for precision torque tightening
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Ideal for automated and controlled assembly
Commonly used where secure tightening and compact head design are required.
🧪 304 Stainless Steel – Corrosion Resistant Performance
Manufactured from AISI 304 stainless steel, offering:
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Strong corrosion and oxidation resistance
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Stable mechanical strength
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Good performance in humid environments
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Long-term durability in general industrial use
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Wide acceptance in machinery and equipment fastening
For marine or chemical exposure, 316 stainless is typically recommended.
🔧 Typical Applications
Widely used in:
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Machinery assembly
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Automation equipment
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Electronic housings
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Structural brackets
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Control panels
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Precision mechanical components
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OEM product manufacturing
Especially suitable for compact or flush mounting designs.
Looking for a Reliable Bulk Supply? Shenle provides full-size ranges from M2 to M12. Contact us for the complete ISO 7380 dimension chart, material certificates (MTR), and wholesale pricing.
