S-91375A495 7/8"-14 x 1 1/2" ASME B18.3, ASTM F912 Set Screws
Set 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 black-oxide coating, extending service life in demanding industrial environments.
- Exceptional holding power provided by Class 3A thread fit, ensuring reliable, vibration-resistant fastening in critical assemblies.
- High-strength durability from alloy steel and Rockwell C45 hardness, resisting wear and deformation under heavy loads.
- Secure, flush installation with a headless hex drive design, ideal for confined spaces and preventing snagging.
- Precise component positioning enabled by the cup tip, which bites into surfaces without causing excessive damage.
- Easy installation and removal with a standard 1/2" hex drive, compatible with common industrial tools.
- Reliable performance in fine-thread applications due to the 7/8"-14 UNF right-hand thread, offering superior tensile strength.
Professional Applications & Engineering Value
This black-oxide alloy steel set screw is engineered to address common industrial challenges such as component slippage, vibration loosening, and corrosion in harsh operating conditions. Its headless hex drive and cup tip design allow for secure, low-profile fastening in machinery, automotive, and aerospace assemblies where space is limited and precision is critical. The fine UNF thread and Class 3A fit provide excellent clamp load retention, reducing maintenance needs and downtime. Made from high-strength alloy steel with a Rockwell C45 hardness, it withstands repetitive stress and heavy torque, making it ideal for permanent or semi-permanent set screw applications in shafts, collars, and gears.
Specification Summary & Compliance
This set screw adheres to ASME B18.3 specifications, ensuring dimensional accuracy and manufacturing consistency. The UNF thread is precision-cut to Class 3A tolerances for a tight, secure fit. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, guaranteeing it is free from hazardous substances and safe for use in various industrial and international markets.
