S-90046A124 1/4"-28 x 1" NAS1801-4-16 High-Strength Steel Hex Head Screws with Phillips Drive
High-Strength Steel Hex Head Screws with Phillips Drive
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Superior corrosion resistance with cadmium plating, extending service life in harsh industrial environments
- High tensile strength of 160,000 PSI ensures reliable performance under extreme mechanical stress
- Precision Class 3A thread fit guarantees secure fastening and vibration resistance in critical assemblies
- Dual-drive external hex/Phillips head provides versatile installation options with standard tools
- Fine UNF thread spacing offers enhanced clamping force and improved load distribution
- Partially threaded shank design allows precise grip length control for specific joint requirements
- Rockwell C34 hardness rating maintains thread integrity and prevents stripping during repeated use
Professional Applications & Engineering Value
This 1/4"-28 UNF hex head screw delivers exceptional engineering value for demanding industrial applications where vibration resistance and precise fit are critical. The cadmium plated steel construction provides superior protection against corrosion in manufacturing equipment, aerospace assemblies, and heavy machinery. The Class 3A thread fit ensures minimal play and maximum engagement, solving common issues of loosening under dynamic loads. The combination of 160,000 PSI tensile strength and fine thread spacing makes it ideal for high-stress applications requiring reliable clamping force. The partially threaded design allows engineers to specify exact grip lengths while the dual-drive head accommodates various installation tools, streamlining assembly processes in automated production environments.
Specification Summary & Compliance
Manufactured to NAS1801-4-16 specifications with Class 3A thread fit ensuring precision tolerance in inch system measurements. The screw features UNF fine threads with right-hand direction and meets rigorous industry standards for dimensional accuracy. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making it suitable for global industrial applications requiring certified components.
