Metallics Machine Screw #8-32 x 3" Round Head Combo Steel Zinc

Metallics Industries Machine Screw #8-32 x 3" Round Head Combo Steel Zinc

Professional Fastener Solution with Dual Drive System

The Metallics Industries Machine Screw #8-32 x 3" Round Head Combo delivers exceptional performance and reliability for electrical, plumbing, and HVAC 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 System - Provides two drive options in one head for maximum installation flexibility and tool compatibility
• Round Head Design - Features 0.287-0.309 inch head width with 0.107-0.12 inch height for secure bearing surface and professional appearance
• Steel Zinc Construction - AISI 1006-1022 material standard with zinc finish provides corrosion resistance and durability
• Precision Threading - #8-32 thread specification with 32 threads per inch ensures reliable engagement and holding power

Professional Installation

• Extended 3-Inch Length - Ideal for applications requiring deeper penetration or securing thick materials
• High Tensile Strength - 60,000 psi minimum tensile strength with Rockwell B70-B100 hardness for demanding applications
• Phillips Recess Specifications - 0.165-0.178 inch diameter with 0.075-0.101 inch depth for secure driver engagement

Quality Construction

• Metallics Heritage - First fastener company in America to offer a full line of combo drive screws since 1985
• Professional Packaging - Available in convenient jar packaging for organized storage and easy access

Technical Specifications

Thread Size: #8-32 (32 threads per inch), Length: 3 inches, Head Type: Round, Drive Type: Slotted/Phillips Combo, Material: Steel Zinc (AISI 1006-1022), Finish: Zinc, Head Width: 0.287-0.309 inches, Head Height: 0.107-0.12 inches, Phillips Recess Diameter: 0.165-0.178 inches, Phillips Recess Depth: 0.075-0.101 inches, Slot Width: 0.045-0.054 inches, Slot Depth: 0.058-0.077 inches, Tensile Strength: 60,000 psi minimum, Hardness: Rockwell B70-B100, Driver Size: #2, Pack Type: Jar

Installation & Usage

1. Select appropriate pre-drilled or tapped hole matching #8-32 thread specification
2. Choose between slotted or Phillips drive based on available tools and access requirements
3. Insert screw through components ensuring proper alignment and thread engagement
4. Apply steady torque using #2 Phillips driver or appropriate slotted screwdriver
5. Tighten to secure connection without over-torquing to prevent thread damage
6. Verify proper seating of round head against surface for optimal bearing contact

Professional Applications

Ideal for:

• Electrical Installations - Panel mounting, junction box assembly, and electrical component securing
• HVAC Systems - Ductwork connections, equipment mounting, and ventilation component assembly
• Plumbing Applications - Fixture mounting, pipe support brackets, and plumbing hardware installation
• Equipment Assembly - Machine component fastening, control panel installation, and industrial equipment mounting
• Building Maintenance - Repair applications, component replacement, and facility maintenance projects
• Metal Fabrication - Steel structure assembly, bracket mounting, and fabricated component connections
• Construction Fastening - Structural connections, hardware mounting, and building component assembly
• Industrial Assembly - Manufacturing equipment, production line components, and industrial machinery fastening

Steel Zinc Construction Advantage

The steel zinc construction provides superior strength and corrosion resistance for demanding professional applications. The AISI 1006-1022 material standard ensures consistent mechanical properties, while the zinc finish offers enhanced protection against environmental factors. This combination delivers reliable performance in electrical, plumbing, and HVAC installations where durability and longevity are essential.

Why Choose Metallics Industries Quality?

Metallics Industries' commitment to precision manufacturing and quality materials ensures reliable performance for contractors and industrial professionals. With comprehensive product testing, superior material selection, and trusted solutions for electrical, plumbing, HVAC, and construction applications, Metallics Industries continues to deliver the engineering excellence and dependable fastening solutions that professionals have trusted since pioneering combo drive technology in 1985.