Fasteners & Hardware

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MRO — FASTENERS & HARDWARE

Industrial Fasteners & Hardware

We help contractors, maintenance teams, and facility managers source fasteners, hardware, and mechanical assembly components for HVAC installation, industrial maintenance, and facility operations. Availability may vary by supplier, stock status, and manufacturer policy.

What This Category Includes

Bolts & Screws

Hex bolts, machine screws, self-tapping screws, and sheet metal screws for HVAC and industrial applications.

Nuts & Washers

Hex nuts, lock nuts, flat washers, and lock washers for mechanical assembly.

Anchors & Inserts

Concrete anchors, wall anchors, and threaded inserts for equipment mounting and structural fastening.

Rivets & Clips

Pop rivets, blind rivets, retaining clips, and snap rings for sheet metal and mechanical assembly.

Sourcing Industrial Fasteners & Hardware for HVAC & MRO

Fasteners are a fundamental consumable in HVAC installation, industrial maintenance, and facility operations. Sheet metal screws, self-drilling screws, and rivets are used throughout ductwork fabrication and equipment installation. Concrete anchors and equipment mounting hardware are required for outdoor condensing unit installation, rooftop equipment, and mechanical room equipment mounting. For facility maintenance teams managing large inventories of fasteners across multiple building systems, consolidating fastener procurement into a single B2B supplier simplifies purchasing and reduces the number of open purchase orders. HVACProSales helps contractors and facility teams source fasteners in the quantities and specifications required for active job sites and maintenance programs.

Who We Serve

HVAC Installation Contractors

Source sheet metal screws, self-drilling fasteners, and equipment mounting hardware for new construction and retrofit installation projects.

Facility & Maintenance Managers

Maintain fastener inventory for ongoing facility maintenance operations. Consolidate multi-SKU fastener orders into a single B2B procurement workflow.

ⓘ Brand availability may vary by supplier, stock status, and manufacturer policy. For application-specific fastener specifications (material grade, coating, thread type, load rating), submit your application requirements for sourcing support.

Frequently Asked Questions

What type of screws are used in HVAC ductwork installation?

Sheet metal screws (self-tapping, hex head or pan head) are the standard fastener for ductwork assembly and connection. #8 and #10 diameter screws in 1/2" to 3/4" lengths are most common. Self-drilling screws eliminate the need for pre-drilling in light-gauge sheet metal. For duct board and flexible duct connections, sheet metal screws with large-diameter washers or drive-pin fasteners are used.

What concrete anchor is appropriate for outdoor condensing unit installation?

Wedge anchors and sleeve anchors are the most common choices for condensing unit pad mounting. Anchor diameter and embedment depth must be sized for the equipment weight and seismic/wind load requirements of the installation location. For lightweight equipment on concrete pads, 3/8" diameter wedge anchors at 2-1/4" embedment are typical. Verify local code requirements for equipment anchorage.

What is the difference between Grade 2, Grade 5, and Grade 8 bolts?

Grade 2 bolts are low-carbon steel with a minimum tensile strength of 74,000 PSI — appropriate for light-duty applications. Grade 5 bolts are medium-carbon steel with a minimum tensile strength of 120,000 PSI — the most common grade for general mechanical assembly. Grade 8 bolts are medium-carbon alloy steel with a minimum tensile strength of 150,000 PSI — used in high-stress applications. Grade is indicated by radial lines on the bolt head (none for Grade 2, 3 lines for Grade 5, 6 lines for Grade 8).