S-91205A247 10-24 x 1" ASME B18.3, ASTM A574 Alloy Steel Thread-Locking Socket Head Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking with nylon patch thread locker prevents loosening under dynamic loads, maintaining joint integrity from -70° to 250°F
• Exceptional tensile strength of 170,000 psi ensures reliable performance in high-stress applications
• Precision Class 3A thread fit provides superior engagement and consistent clamping force
• Corrosion-resistant black-oxide finish on alloy steel extends service life in demanding environments
• Standard hex socket drive with 5/32" key size allows for high-torque installation in confined spaces
• Full threading along 1" length offers flexible positioning and maximum grip range
• Industry-compliant manufacturing meets ASME B18.3 and ASTM A574 specifications for guaranteed interoperability

Professional Applications & Engineering Value

These black-oxide alloy steel socket head cap screws solve critical vibration-induced failure points in machinery, automotive, and heavy equipment assemblies. The nylon patch locking feature creates permanent friction against back-out forces, eliminating the need for secondary locking components. With 170,000 psi tensile strength and Rockwell C37 hardness, they withstand extreme mechanical stresses while the coarse UNC threads provide rapid installation in soft materials or blind holes. The fully threaded design ensures uniform stress distribution, making them ideal for precision alignment applications where Class 3A thread fit guarantees consistent preload accuracy.

Specification Summary & Compliance

Manufactured to ASME B18.3 dimensional standards with material certification to ASTM A574. Features Class 3A thread tolerance for precision fit and 10-24 UNC coarse threads with right-hand direction. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. Inch system measurements include: 1" length, 5/16" head diameter, and 5/32" hex drive size.