Holo-krome 08036 Shoulder Screw 3/8 in Alloy Steel Hex Socket

Product Description

The HOLO-KROME 08036 is a Grade 8 alloy steel shoulder screw with a 3/8-inch shoulder diameter and a 1/2-inch shoulder length, designed for precision fastening applications in industrial, mechanical, and machine assembly work. The shoulder provides a hardened, smooth bearing surface that allows pivoting, guiding, or locating of mating components with tight dimensional control. Drive engagement is via a 3/16-inch hex socket. The screw is uncoated and conforms to ASME B18.3 and ASME B1.1 standards, making it a reliable choice for engineered assemblies where dimensional accuracy is required.

This shoulder screw is suited for use in jigs, fixtures, machine tools, linkages, and mechanical assemblies where a precise shoulder fit controls movement or positions a component. The 5/16-18 UNC thread and 1/2-inch thread length provide secure clamping into a tapped hole, while the rounded head seats flush in standard counterbored applications. Machinists, millwrights, and industrial maintenance technicians commonly install this type of fastener in production equipment and fabricated assemblies.

Key Features

• Grade 8 alloy steel construction for high tensile strength in demanding applications
• 3/8-inch shoulder diameter with precision-ground tolerance for accurate bearing and locating
• 3/16-inch hex socket drive for positive torque engagement with a standard hex key
• 5/16-18 UNC thread meets ASME B1.1 for reliable engagement with standard tapped holes
• Uncoated finish suitable for use as-is or with customer-applied coatings
• Conforms to ASME B18.3 and ASME B1.1 standards

Compatibility

Designed as an OEM-style replacement or standard-fit shoulder screw for industrial machinery, jigs, fixtures, and mechanical assemblies requiring a 3/8-inch shoulder diameter and 5/16-18 UNC thread.

Installation Notes

Installation is performed by qualified machinists or maintenance technicians using a 3/16-inch hex key or socket driver. Ensure the receiving tapped hole is clean, correctly sized to 5/16-18 UNC, and that the counterbore matches the shoulder diameter before installation. De-energize and lock out all equipment before accessing fastener locations in powered machinery. Do not exceed the torque capacity appropriate for Grade 8 alloy steel fasteners of this thread size as specified by applicable engineering standards.