S-91241A773 10-32 x 1/2" ASME B18.13 Stainless Steel Pan Head Phillips Screws with Spring Lock Washer
Stainless Steel Pan Head Phillips Screws with Spring Lock Washer
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Washer & Nut
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Enhanced corrosion resistance through passivated 18-8 stainless steel construction, ideal for harsh industrial environments
- Superior vibration resistance with integrated 410 stainless steel spring lock washer, preventing loosening under dynamic loads
- High tensile strength of 70,000 psi ensures reliable performance in demanding mechanical applications
- Precision Class 2A thread fit provides consistent engagement and reduces cross-threading risks during assembly
- Optimized drive engagement with Phillips No. 2 drive for efficient installation using standard tools
- Full threading along 1/2" length maximizes grip range and adjustment flexibility
- Compliance with ASME B18.13 standards guarantees dimensional accuracy and interchangeability
Professional Applications & Engineering Value
This 10-32 UNF screw with spring lock washer addresses critical vibration-induced failure points in machinery assembly, electrical enclosures, and automotive components. The 18-8 stainless steel core combined with passivated finish creates a barrier against chemical exposure and galvanic corrosion, while the 410 stainless steel washer maintains spring tension under thermal cycling. Engineers specify this fully threaded configuration for applications requiring uniform clamping force across the entire engagement length, eliminating the need for additional locking mechanisms. The rounded pan head profile provides a low-clearance solution where protruding fasteners could interfere with moving parts.
Specification Summary & Compliance
Manufactured to ASME B18.13 specifications with Class 2A thread fit tolerance for precision assembly. The UNF fine thread (10-32) configuration ensures superior resistance to vibrational loosening compared to coarse threads. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, containing no restricted substances. Mechanical properties include 70,000 psi tensile strength and Rockwell B80 hardness for durable performance in industrial fastening applications.
