Grub Screws Hex Socket Set Screws with Various Points Stainless Steel Carbon Steel Metric Inch for Mechanical Assembly

We supply a full range of hex socket set screws, also known as grub screws, with complete metric and inch thread standards to meet different market installation requirements. Whether you need miniature sizes for electronics or heavy-duty dimensions for industrial machinery, our extensive inventory ensures you find the exact match for your project.

This series of fastening screws adopts a fine thread processing technique to ensure a firm connection that is not easy to loosen. Available in multiple styles including flat point, cup point, cone point, dog point, and full thread types. The fine thread design provides a larger tensile stress area compared to coarse threads, delivering superior holding power and vibration resistance for precision adjustments.

Main materials include:

• High Strength Carbon Steel: Grade 12.9 and 10.9 available, galvanized for anti-rust protection.
• Stainless Steel: Type 304 (A2) and 316 (A4) provide excellent corrosion resistance, suitable for humid, marine, chemical, and harsh working environments.
• Special Options: Upon request, we also offer alloy steel with black oxide finish or zinc plating for enhanced surface hardness.

The product features precise size standards, smooth thread surfaces, and easy installation. Key performance benefits include:

• Stable Locking Effect: Prevents loosening caused by shock or vibration.
• Good Compression Resistance: Maintains shape and function under high clamping force.
• Wear Resistance: Reduces thread damage during repeated assembly and disassembly.
• Burr-Free Threads: Each screw is carefully manufactured to ensure thread gauge passes smoothly.

These set screws are widely used in:

• Industrial machinery and power transmission systems
• Mold and die fixing (mould bases)
• Collar and pulley fastening
• Shaft and gear locking mechanisms
• Furniture hardware and bicycle components
• Electronic device housing and precision instruments

• Quality Control: 100% inspection of thread GO/NO GO gauge and hardness testing (HRC) before shipment.
• Standards: Conforming to ISO 4026, DIN 916, ANSI/ASME B18.3 specifications.
• Packaging Options: Standard export carton with inner plastic bag, or customized small plastic boxes with labels. Anti-tamper and anti-moisture packaging available upon request.

We welcome OEM and ODM orders. You can customize:

• Special head styles (notched, flanged, etc.)
• Non-standard thread lengths
• Surface treatment (black oxide, phosphate, zinc, nickel, etc.)
• Laser marking with your logo or specifications
• Specific torque requirements

• Ready Stock: Most standard sizes (M2 to M20, #2 to 5/8 inch) available for same-day dispatch.
• Competitive Factory Direct Pricing: No middleman markup.
• Fast Lead Time: 15-25 days for mass production orders.
• Complimentary Samples: Available for quality evaluation (shipping fee applies).