Value Collection 601545BR Set Screw 1-1/4-7 X 1-1/4 in Cup Point

Product Description

The VALUE COLLECTION 601545BR is a cup point set screw designed for securing components along a shaft or within a threaded bore without a protruding head. It features a 1-1/4-7 UNC thread and measures 1-1/4 inches in overall length. Manufactured from alloy steel to ASTM F912 grade, this fastener delivers high torsional strength and hardness suitable for demanding mechanical assemblies. A 5/8-inch hex key drive allows high torque application during installation. This fastener conforms to ASME/ANSI B18.3 and ASTM F912 standards and is sold individually.

This set screw is used in general industrial, mechanical, and maintenance applications where a flush or below-surface fastener is required. Typical uses include locking collars, gears, pulleys, and hubs onto shafts. The cup point geometry bites into the mating surface to resist rotational and axial movement under load. Machinists, maintenance mechanics, and industrial tradespeople commonly specify this size for heavy-duty shaft retention in equipment assemblies.

Key Features

• 1-1/4-7 UNC thread for compatibility with standard coarse-thread bores
• 1-1/4 inch overall length provides substantial thread engagement depth
• Cup point geometry bites into shaft surface to resist movement under load
• Alloy steel construction meets ASTM F912 grade for high hardness and torsional strength
• 5/8 inch hex key drive allows high-torque installation with standard Allen or hex keys
• Conforms to ASME/ANSI B18.3 and ASTM F912 fastener standards

Compatibility

Designed as a standard ASME/ANSI B18.3 cup point set screw for use in any threaded bore accepting a 1-1/4-7 UNC thread, including collars, hubs, gears, and pulleys in industrial mechanical assemblies.

Installation Notes

Installation is typically performed by a machinist or maintenance mechanic using a calibrated 5/8-inch hex key or Allen wrench. De-energize and lock out all equipment before installing or removing set screws from rotating assemblies. Ensure the mating bore thread is clean and free of debris before threading the fastener. Do not exceed the torque capacity of the hex drive or alloy steel fastener by using extension bars on the hex key.