Eaton BU58S Universal Beam Fastener 5/8 Flange Clamp

Product Description

The EATON BU58S is a universal beam fastener from the B-Line series, designed to secure conduit, strut, pipe hangers, and other trade hardware to structural steel beams. The fastener grips beam flanges ranging from 0.31 inches minimum to 0.5 inches maximum mount size, making it suitable for a wide range of light structural steel applications. It incorporates a 20 x 0.38 inch keyed stud for positive engagement and weighs just 0.065 pounds. Electricians and mechanical contractors use this type of fitting when attaching support systems directly to beam flanges without welding or drilling into structural steel.

This fastener is intended for use in commercial and industrial settings where conduit runs, cable trays, or pipe hangers must be anchored to beam flanges. It is commonly installed during rough-in phases in steel-framed buildings, warehouses, and mechanical rooms. The compact 1 inch x 1 inch x 1 inch body fits in tight steel framing conditions where larger clamps cannot be positioned. Licensed electricians and pipefitters routinely specify B-Line series beam fasteners when code-compliant, no-drill beam attachment is required.

Key Features

• Universal flange fit accepts beam flanges from 0.31 inches to 0.5 inches thickness
• 20 x 0.38 inch keyed stud provides secure, positive thread engagement
• Compact body measures 1 inch height x 1 inch length x 1 inch width
• Lightweight at 0.065 pounds for easy handling during overhead installation
• No drilling or welding required for beam attachment

Compatibility

Designed as an OEM-style universal beam fastener compatible with standard structural steel beam flanges within the 0.31 inch to 0.5 inch mount size range, consistent with B-Line series strut and support system installations.

Installation Notes

Installation is typically performed by licensed electricians or mechanical contractors working on steel-framed structures. Verify the beam flange thickness falls within the 0.31 inch to 0.5 inch rated range before applying load. De-energize any adjacent electrical systems before working overhead near live conductors. Consult applicable NEC or local mechanical codes for required support spacing and load ratings on conduit or pipe hanger assemblies.

Technical Specifications

• Height: 1 inch
• Length: 1 inch
• Width: 1 inch
• Weight: 0.065 pounds
• Stud Size: 20 x 0.38 inches keyed stud
• Minimum Mount Size: 0.31 inches
• Maximum Mount Size: 0.5 inches
• UPC: 781011196202

Standard Information

• Brand: EATON
• Manufacturer Part Number: BU58S