Keystone Threaded Products KB008AC2I182860 Threaded Rod

Product Description

The KEYSTONE THREADED PRODUCTS KB008AC2I182860 is a 6-foot alloy steel threaded rod machined to ACME thread form with a 1/2-8 thread size, left-hand thread direction, and a 2C fit class. Manufactured from Grade B7 alloy steel, this rod delivers the high tensile strength and temperature resistance required for demanding industrial and mechanical applications. The Precision ACME designation indicates close-tolerance machining for reliable engagement with mating nuts or lead-screw assemblies. This rod is a standard stock item used by mechanical contractors, millwrights, pipefitters, and industrial maintenance technicians.

This threaded rod is suited for linear motion assemblies, jacking mechanisms, clamping fixtures, and power-transmission applications where ACME thread form is specified. The left-hand thread direction is critical in applications where counter-rotation or differential thread assemblies are required to prevent unintended loosening. Grade B7 alloy steel is commonly specified in high-temperature bolting and pressure-vessel work, as well as structural tie-rod installations in mechanical systems. The 2-start thread configuration increases linear travel per revolution, which is advantageous in motion-control and actuation use cases.

Key Features

• ACME thread form with Precision ACME tolerance designation for accurate mating engagement
• Left-hand thread direction for differential thread and counter-rotation applications
• Grade B7 alloy steel for elevated tensile strength and high-temperature service suitability
• 2-start thread configuration for increased linear advance per revolution
• 2C fit class providing controlled clearance for smooth motion in lead-screw assemblies
• 72-inch overall length allows field cutting to required lengths

Compatibility

Designed for use in linear motion, clamping, and power-transmission assemblies that specify a 1/2-8 Precision ACME, 2C fit class, left-hand thread, Grade B7 alloy steel threaded rod.

Installation Notes

Threaded rod installation and cutting should be performed by qualified mechanical or industrial trades personnel using appropriate thread-compatible tooling. Always verify thread direction and fit class against mating components before assembly to avoid cross-threading or improper engagement. Cutting to length should be done with a metal-rated abrasive or band saw, followed by die chasing the cut end to restore thread profile. Follow applicable facility safety procedures and relevant mechanical codes when integrating into pressure or structural assemblies.