S-96562A112 4-40 x 5/8" ASME B18.6.3 Thread-Locking Stainless Steel Pan Head Phillips Screws
Thread-Locking Stainless Steel Pan Head Phillips Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Permanent vibration resistance with nylon patch thread locker that maintains secure fastening in dynamic environments
- Superior corrosion protection through 18-8 stainless steel construction and passivated surface treatment
- High-strength performance delivering 60,000 psi tensile strength for demanding industrial applications
- Wide temperature compatibility with locking effectiveness maintained from -70° to 250° F
- Reliable thread engagement through Class 2A fit and UNC coarse threading for easier assembly
- Optimized drive efficiency with Phillips No. 1 drive style and pan head design for secure tool engagement
- Full-threaded coverage along the 5/8" length for maximum grip and load distribution
Professional Applications & Engineering Value
These 4-40 UNC nylon patch locking screws solve critical vibration-induced loosening problems in industrial equipment, electronics assemblies, and machinery components. The 18-8 stainless steel core provides excellent corrosion resistance while the passivated finish enhances durability in harsh environments. The permanent nylon patch thread locker eliminates the need for separate locking washers or adhesives, streamlining assembly processes. With Rockwell B70 hardness and 60,000 psi tensile strength, these fully threaded screws maintain integrity under stress, making them ideal for applications where reliability cannot be compromised. The pan head Phillips design offers familiar driving convenience while the coarse UNC threading ensures quick installation in various materials.
Specification Summary & Compliance
Manufactured to precise Class 2A thread fit tolerances with UNC coarse threading (4-40 size) and right-hand thread direction. Complies with ASME B18.6.3 mechanical standards for dimensional accuracy and performance. Meets environmental regulations including RoHS 3 (2015/863/EU) compliance and REACH (EC 1907/2006) requirements. The 5/8" length and fully threaded design ensure consistent performance across applications while maintaining specified mechanical properties.
