Holo-krome 08141 Shoulder Screw 3/4 in Alloy Steel Hex Socket

Product Description

The HOLO-KROME 08141 is an alloy steel shoulder screw designed for precision fastening applications that require a tight-tolerance bearing surface. The shoulder measures 0.750 inches in diameter and 3.750 inches in length, providing a ground cylindrical surface that acts as a pivot, guide, or bearing journal. The 5/8-11 UNC threaded end is 0.875 inches long and draws the screw firmly into a tapped hole. The rounded head is 1 inch in diameter and 0.500 inches tall, driven by a 3/8 inch hex socket. This fastener is installed by mechanical maintenance technicians, millwrights, and precision assembly personnel in both industrial and commercial settings.

Shoulder screws of this type are used in jigs, fixtures, dies, and machinery where a precisely controlled shaft diameter is needed to locate components, support bearings, or serve as a pivot pin. The uncoated alloy steel construction meets the demands of tooling and machine-building environments. The grade 8 material rating indicates high tensile strength suitable for load-bearing installations. This screw is sold individually and suits applications where exact dimensional tolerancing is critical to function.

Key Features

• 0.750 inch shoulder diameter with 3.750 inch shoulder length for extended bearing surface
• 5/8-11 UNC thread with 0.875 inch thread length for secure engagement in tapped holes
• Grade 8 alloy steel construction for high tensile strength and durability
• 3/8 inch hex socket drive for positive torque transfer without slippage
• Uncoated finish suitable for use in controlled environments and tooling applications
• Meets ASME B18.3 and ASME B1.1 dimensional and thread standards

Compatibility

Designed as an OEM-style replacement or direct-use shoulder screw for jigs, fixtures, dies, and general industrial machinery requiring a 0.750 inch diameter shoulder with a 5/8-11 UNC threaded end.

Installation Notes

Installation should be performed by qualified mechanical or maintenance personnel familiar with precision fastener applications. Ensure the tapped receiving hole is clean, properly threaded to 5/8-11 UNC specifications, and free of debris before installation. A 3/8 inch hex key or socket driver is required. Do not over-torque, as the shoulder must seat flush against its mating surface to function correctly as a bearing or pivot reference.