PREMIUM STAINLESS STEEL 420 CONSTRUCTION: Manufactured from high-grade stainless steel 420 alloy delivering exceptional corrosion resistance and long-lasting durability. The martensitic stainless steel construction maintains structural integrity in humid, marine, or chemically aggressive environments while providing magnetic properties for easy handling. Advanced composition provides outstanding resistance to rust, oxidation, and moisture damage, making these metal dowel pins ideal. PRECISION SPRING PIN ENGINEERING: These expertly engineered spring pins feature a hollow cylindrical body with a precision-cut slot that allows controlled compression during insertion. Precisely manufactured roll pins with 5/64" outer diameter and 5/16" length specifications, ensuring consistent fit. When installed into pre-drilled holes, the spring force mechanism creates uniform radial pressure against the hole walls, ensuring secure positioning and retainer clip function. VERSATILE MULTI-INDUSTRY APPLICATIONS: Roll pins serve as essential hardware pins functioning as keys to connect rotating shafts, secure gear assemblies, lock components, and join flat mating surfaces in critical applications. Extensively used across automotive transmissions, industrial machinery, agricultural equipment, manufacturing tools, HVAC systems, marine hardware, construction equipment, hinge pins applications, and general mechanical assemblies where reliable connections are needed. HEAVY-DUTY PERFORMANCE AND EASY INSTALLATION: Engineered to withstand demanding operational conditions, including repeated installation, high-frequency vibrations, thermal expansion, and substantial mechanical loads while maintaining consistent holding force throughout service life. User-friendly design requires only standard drilling equipment - simply drill an appropriate diameter hole, insert the spring pin, which automatically compresses during entry, then releases to secure. QUALITY ASSURANCE AND CONVENIENT PACKAGING: Every spring pin is manufactured under strict quality control protocols with complete material traceability to certified steel suppliers and documented manufacturing processes. Thoughtfully packaged in roll pin set quantities of 25 pieces, ideal for repair shops and project work, with convenient bulk pins options available for manufacturing operations. Dimensional accuracy, material composition, and mechanical properties are verified through testing. These premium ASMC Industrial 5/64" x 5/16" stainless steel 420 roll pins deliver exceptional corrosion resistance and long-lasting durability for demanding applications across automotive, industrial, marine, and construction industries. Manufactured from high-grade martensitic stainless steel 420 alloy, these expertly engineered spring pins feature a hollow cylindrical body with a precision-cut slot that allows controlled compression during insertion, creating uniform radial pressure against hole walls for secure positioning and reliable retainer clips function. The advanced stainless steel construction maintains structural integrity in humid, marine, or chemically aggressive environments while providing outstanding resistance to rust, oxidation, and moisture damage, making them ideal for outdoor applications where weather exposure is a concern. These versatile hardware pins function as mechanical keys to connect rotating shafts, secure gear assemblies, lock components to axles, and join flat mating surfaces in critical applications, including automotive transmissions, industrial machinery, agricultural equipment, manufacturing tools, HVAC systems, marine hardware, construction equipment, hinge pins applications, and general mechanical assemblies where reliable connections are essential. Engineered to withstand demanding operational conditions, including repeated installation, high-frequency vibrations, thermal expansion, and substantial mechanical loads while maintaining consistent holding force throughout service life.