S-90343A128 10-32 x 1" ASME B18.3 18-8 Stainless Steel Thread-Locking Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and long-term reliability.
• High-strength performance with 70,000 psi tensile strength and Rockwell B70 hardness for demanding mechanical loads.
• Precise thread engagement due to Class 3A fit and 10-32 UNF fine threads, ensuring secure, vibration-resistant connections.
• Integrated thread locking via pre-applied epoxy adhesive, preventing loosening under thermal cycling from -60° to 300° F.
• Easy installation and removal with a 5/32" hex drive and standard socket head, compatible with common tools.
• Full thread coverage along the 1" length for maximum grip and uniform stress distribution in assemblies.
• Compliance with industry standards per ASME B18.3, guaranteeing dimensional accuracy and interchangeability.

Professional Applications & Engineering Value

This 10-32 UNF Socket Head Cap Screw is engineered to address critical challenges in industrial settings, such as vibration-induced loosening and corrosion. The 18-8 Stainless Steel material provides excellent resistance to rust and chemicals, making it suitable for machinery, automotive, and outdoor equipment. The Class 3A thread fit and fine UNF threads deliver tight tolerances, reducing the risk of cross-threading and enhancing joint integrity. With a pre-applied epoxy thread locker that cures to full strength in 24 hours, it maintains clamp force in high-temperature environments up to 300°F, ensuring reliability in dynamic or thermal cycling applications. These features make it a trusted choice for precision assemblies requiring durable, high-strength fastening solutions.

Specification Summary & Compliance

This screw adheres to Class 3A thread fit for precise engagement and ASME B18.3 specifications, ensuring dimensional consistency. It features a 10-32 UNF fine thread with right-hand direction and full threading over the 1" length. The epoxy thread locker begins hardening in 15 minutes and reaches full strength in 24 hours, operating within a temperature range of -60° to 300° F. Manufactured from 18-8 Stainless Steel, it meets common industry standards for material quality and performance in industrial fasteners.