XunLiu 50PCS M2.5X15mm Grade 12.9 Alloy Steel Hex Socket Head Cap Screws
Product Details Item Package Quantity: 50
Size: M2.5 15MM
Brand: XunLiu
MPN: M2.5X15
UPC: 631924751671
EAN: 0631924751671
- Material: Alloy Steel 4140/4142
- Thread Size: M2.5
- Exterior Finish: Steel
- Manufacturer Grade: Grade 12
- Head Style: Socket Cap
- Thread Size: M2.5
- Exterior Finish: Steel
- Manufacturer Grade: Grade 12
- Screw Head Style: Socket Cap
- Color: Black
- Fastener Type: Hexagon Bolt
- Thread Type: Partial Thread
- Thread Style: Right Hand
- Item Hardness: high hardness
- Head Type: 圆柱头
- Drive System: External Hex
- Material Type: Alloy Steel 4140/4142
- Metal Type: Low Carbon Steel
- Item Highlight: Partial Thread, Black Oxide Finish – for 3D Printer, Electronics, Robotics & Mechanical Assembly
- Size Name: M2.5 15MM
- Fastener Size: M2.5
- Thread Coverage: Partially Threaded
- Item Dimensions: 2.76 x 0.91 x 0.39 inches
- Brand: XunLiu
- UPC: 631924751671
- Unit Count: 1 Count
- Manufacturer: XunLiu
- Model: M2.5X15
- Part Number: M2.5X15
- GRADE 12.9 PREMIUM ALLOY STEEL INDUSTRIAL-STRENGTH RELIABILITY: Engineered from high-strength low-carbon alloy steel with the highest commercial-grade tensile strength rating, delivering exceptional hardness and yield point performance. Far exceeds standard Grade 8.8 fasteners, making these screws the choice for demanding applications where failure is not an option.
- PRECISION HEX SOCKET HEAD CAP DESIGN PERFECT TOOL ENGAGEMENT: Accurately machined socket head with internal hex drive ensures zero cam-out, optimal tool engagement, and controlled torque application. Enables fastening in confined spaces where traditional hex heads cannot fit, with superior mechanical advantage.
- PARTIAL THREAD DESIGN MAXIMUM CLAMPING FORCE: Strategic partial threading concentrates grip force precisely at the joint, minimizing stress on delicate threaded holes and reducing thread stripping risk in sensitive materials. Perfect for blind-hole assemblies and precision component mounting.
- BLACK OXIDE ANTI-CORROSION COATING LONG-LASTING DURABILITY: Professional-grade black oxide finish provides reliable protection against rust and environmental degradation while maintaining exact dimensional tolerances. Ensures smooth, consistent installation and clean aesthetic appearance across all applications.
- BULK 50-PIECE VALUE PACK reliable torque performance. 2% quantity tolerance. Ideal for production runs, prototyping, electronics assembly, 3D printing, robotics, and precision instrument work.
XunLiu Grade 12.9 Alloy Steel Hex Socket Head Cap Screws – Premium Fasteningfor Precision & PowerWhen strength, precision, and reliability matter, theXunLiu Grade 12.9 Alloy Steel Hex Socket Head Cap Screws deliver uncompromisedperformance across every application. Engineered to the highest internationalstandards, these fasteners represent the gold standard for professionals,engineers, and serious makers who refuse to settle for ordinary hardware.WhyGrade 12.9? Because Standard Screws Simply Aren\'t Enough Grade 12.9 is thepinnacle of commercial fastener strength, offering tensile strength up to 1220MPa — significantly higher than Grade 8.8 alternatives. This means superioryield strength, exceptional hardness, and unmatched reliability under extremestress, vibration, and dynamic loads. Whether you\'re building aerospace-gradeprototypes, racing components, precision instruments, or critical industrialequipment, Grade 12.9 is non-negotiable.Engineered Superiority – PartialThread Advantage Unlike fully threaded alternatives, the partial thread designstrategically focuses clamping force exactly where you need it — at the joint.This intelligent engineering reduces stress concentration, prevents threadstripping in delicate or soft materials, and provides superior pull-outresistance. Especially valuable in blind-hole assemblies, 3D-printed brackets,aluminum extrusions, and precision electronics.Hex Socket Head – Power &Precision in Tight Spaces The internal hex socket (Allen key) design enablesinstallation in confined areas where traditional hex heads cannot reach.Combined with superior mechanical advantage, you get precise torque controland zero cam-out risk — critical for any application demanding consistent,repeatable results.Professional Black Oxide Finish – More Than Cosmetic Theadvanced black oxide coating is engineered protection: it resists rust andenvironmental degradation while maintaining exact dimensional tolerances forperfect fit every time. Clean aesthetic appearance is a bonus — function isthe priority.Built for Every Challenge – Verified Applications Electronicsassembly, 3D printer modifications, robotics prototyping, precision instrumentmounting, mechanical fastening, small appliance repair, automotiverestoration, CNC machinery assembly, and demanding DIY builds. From laboratoryto production floor, these screws deliver.Uncompromised Quality Control Eachscrew undergoes precision manufacturing with DIN 912 compliance, ensuringconsistent dimensional accuracy and reliable torque performance. High hardnessrating and anti-rust coating guarantee smooth operation and long-termdurability across industrial and DIY environments.Professional 50-Piece BulkPack Designed for anyone serious about quality — production runs, prototypinglabs, maintenance kits, and comprehensive repair supplies. Backed by rigorousQC standards that ensure every single fastener meets professionalexpectations.
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