Metallics Machine Screw 8-32 x 2-1/2" Round Head Combo Steel Zinc

Metallics Industries Machine Screw 8-32 x 2-1/2" Round Head Combo Steel Zinc

Professional Dual-Drive Fastener Solution

The Metallics Industries Machine Screw 8-32 x 2-1/2" Round Head Combo delivers exceptional performance and reliability for electrical, plumbing, heating and air conditioning applications. This steel zinc machine screw provides dependable fastening solutions designed for professional contractors, electricians, and industrial technicians, offering the proven quality and precision engineering that professionals trust from a leading manufacturer of electrical hardware and industrial fasteners.

Professional Features & Benefits

Dual-Drive Performance

• Combo Slotted/Phillips Drive Design - Two drives in one head providing installation flexibility with both slotted and Phillips #2 drivers for maximum versatility
• Round Head Configuration - 0.287-0.309 inch head width with 0.107-0.12 inch height providing secure bearing surface and professional appearance
• Precision Threading - 8-32 thread specification with 32 threads per inch ensuring reliable engagement and holding power
• Extended Length Design - 2-1/2 inch length accommodating thick materials and deep penetration requirements

Material & Construction Excellence

• Steel Zinc Construction - AISI 1006-1022 material standard with zinc finish providing corrosion resistance and durability
• Professional Hardness Rating - Rockwell B70-B100 hardness ensuring optimal strength without brittleness
• High Tensile Strength - 60,000 psi minimum tensile strength delivering reliable performance under load

Installation Versatility

• Dual-Drive Convenience - Compatible with both slotted and Phillips drivers eliminating tool limitations
• Precision Recess Specifications - Phillips recess depth 0.075-0.101 inch and slot depth 0.058-0.077 inch for secure driver engagement

Technical Specifications

Thread Size: 8-32, Length: 2-1/2 inches, Head Type: Round, Drive Type: Slotted/Phillips Combo, Material: Steel Zinc, Finish: Zinc, Material Standard: AISI 1006-1022, Head Width: 0.287-0.309 inches, Head Height: 0.107-0.12 inches, Hardness: Rockwell B70-B100, Tensile Strength: 60,000 psi minimum, Phillips Recess Depth: 0.075-0.101 inches, Slot Depth: 0.058-0.077 inches, Driver Size: #2, Pack Type: Jar, Weight: 1.27 lbs

Installation & Usage

1. Select appropriate pre-drilled or tapped hole matching 8-32 thread specification
2. Choose either slotted or Phillips #2 driver based on installation preference and access requirements
3. Insert screw through components ensuring proper alignment and thread engagement
4. Begin threading by hand to prevent cross-threading and ensure proper start
5. Tighten with appropriate driver to secure connection without over-torquing
6. Verify proper seating of round head against surface for optimal bearing contact

Professional Applications

Ideal for:

• Electrical Panel Assembly - Securing components, mounting hardware, and electrical enclosure assembly
• HVAC System Installation - Mounting brackets, securing ductwork components, and equipment assembly
• Plumbing Applications - Fixture mounting, bracket installation, and plumbing hardware assembly
• Equipment Maintenance - Replacement fasteners for machinery, control panels, and industrial equipment
• Control Panel Construction - Mounting switches, relays, and electrical components in panel boxes
• Appliance Assembly - Securing internal components and mounting hardware in appliances
• Industrial Fabrication - General purpose fastening in steel fabrication and assembly operations
• Commercial Construction - Hardware mounting and component assembly in commercial building systems

Steel Zinc Construction Advantage

The steel zinc construction provides excellent corrosion resistance for indoor and moderate outdoor applications while maintaining the strength characteristics required for reliable fastening. The zinc finish offers superior protection against rust and corrosion compared to plain steel, extending service life in electrical, plumbing, and HVAC environments where moisture and humidity are present.

Why Choose Metallics Industries Quality?

Metallics Industries has been a pioneer in combo drive technology since 1985, being the first fastener company in America to offer a complete line of combination drive screws. Our commitment to precision manufacturing ensures consistent thread quality, accurate head dimensions, and reliable performance. Each machine screw undergoes comprehensive quality testing to meet stringent material standards and performance requirements, providing contractors, electricians, and industrial professionals with the dependable fastening solutions they need for critical applications in electrical, plumbing, HVAC, and construction projects.