S-91400A853 1/4"-28 x 3/4" FF-S-92, QQ-P-35, MS51958-81, NASM51958 Stainless Steel Pan Head Phillips Screws
Stainless Steel Pan Head Phillips Screws
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 passivated 18-8 stainless steel construction, ideal for harsh or humid environments.
- High tensile strength of 80,000 psi ensures reliable, long-lasting fastening under significant mechanical stress.
- Fully threaded design provides maximum grip and uniform load distribution along the entire length.
- Fine UNF thread (1/4"-28) with Class 2A fit offers precise engagement and vibration resistance in critical assemblies.
- Pan head with Phillips No. 3 drive allows for easy installation and a low-profile, rounded finish.
- Compliance with major standards including Fed. Spec. FF-S-92, QQ-P-35, MS51958-81, and NASM51958 guarantees consistent quality.
- RoHS 3 and REACH compliant for safe use in regulated industries and environmentally conscious applications.
Professional Applications & Engineering Value
This 1/4"-28 UNF pan head screw is engineered to address common industrial challenges such as corrosion, vibration loosening, and the need for precise, repeatable fastening. The passivated 18-8 stainless steel provides excellent resistance to oxidation and chemical exposure, making it suitable for marine, automotive, and electronics applications. The fine thread and Class 2A fit ensure tight tolerances and secure connections in assemblies where stability is critical. Its fully threaded design and 80,000 psi tensile strength deliver robust performance in high-stress environments, reducing maintenance and replacement frequency. The pan head with a Phillips drive facilitates quick installation while maintaining a smooth, snag-free surface.
Specification Summary & Compliance
This screw features a 1/4"-28 UNF fine thread with Class 2A tolerance for precise fit. It is manufactured in compliance with Fed. Spec. FF-S-92, QQ-P-35, MS51958-81, and NASM51958. The product is fully RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring it meets stringent environmental and safety regulations for industrial use.
