Drill Rod Tool Steels 81174153 4142 Alloy Steel Flat Stock

Product Description

The DRILL ROD TOOL STEELS 81174153 is a pre hardened alloy steel flat stock bar conforming to AISI/SAE Type 4142 specification. It measures 18 inches long, 3-1/2 inches wide, and 5/16 inch thick, with a finished weight of 5.55 pounds. The pre hardened condition means no additional heat treating is required before machining or fitting to specification. This flat stock is used by machinists, tool and die makers, and metalworking professionals who need a ready-to-use material with controlled dimensional tolerances. Tight tolerances on all four faces make it suitable for precision fixture components, machine parts, jigs, and tooling applications where dimensional consistency is critical.

This flat stock is suited for industrial and commercial fabrication shops, machine shops, and maintenance departments. It is commonly used to fabricate wear plates, support brackets, die components, and structural machine parts that require moderate to high strength. Its pre hardened state makes it a practical choice when lead time and post-processing steps need to be minimized in a production or maintenance environment.

Key Features

• AISI/SAE Type 4142 alloy steel for reliable strength and machinability in the pre hardened condition
• Dimensional tolerances held to +0.125 inches on length, +0.005 inches on width, and +0.001 inches on thickness
• Square tolerance of 0.003 inches ensures consistent flatness and squareness across the bar
• Pre hardened condition eliminates the need for additional heat treatment before use
• Single-piece minimum order quantity allows purchase of exactly the quantity required

Compatibility

Designed as a general-purpose pre hardened alloy steel flat stock for use in machining, fabrication, and tooling applications where AISI/SAE Type 4142 material specification is required.

Installation Notes

Cutting, drilling, and grinding operations should be performed with tooling rated for hardened alloy steel stock. Appropriate personal protective equipment including eye protection and gloves is required when machining or handling flat bar stock. Secure workpieces firmly in a vise or fixture before any cutting or shaping operation. Consult applicable shop safety standards and material handling guidelines before processing.