Metallics Machine Screw 1/4-20 x 2" Round Head Combo Steel Zinc

Metallics Industries Machine Screw 1/4-20 x 2" Round Head Combo Steel Zinc

Professional Fastener Solution with Dual Drive System

The Metallics Industries Machine Screw 1/4-20 x 2" 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 - Two drives in one head provide installation flexibility and enhanced torque transfer for professional applications
• 1/4-20 Thread Specification - Precision 20 threads per inch deliver reliable engagement and holding power for demanding installations
• 2" Length Design - Extended length provides secure fastening through multiple materials and thick assemblies
• Round Head Profile - 0.443-0.472" head width with 0.16-0.175" height offers optimal bearing surface and professional appearance

Material & Construction Excellence

• Steel Zinc Construction - AISI 1006-1022 steel with zinc finish provides corrosion resistance and durability for indoor applications
• Rockwell B70-B100 Hardness - Controlled hardness ensures optimal strength without brittleness for reliable performance
• 60,000 PSI Minimum Tensile Strength - High-strength construction withstands demanding loads and stress conditions

Professional Installation

• Precision Threading - Machine thread design ensures smooth engagement with tapped holes and threaded components
• Driver Size #3 Compatibility - Standard driver size works with common professional tools and bits

Technical Specifications

Thread: 1/4-20 (20 threads per inch), Length: 2", Head Type: Round, Drive Type: Slotted/Phillips Combo, Material: Steel Zinc (AISI 1006-1022), Finish: Zinc, Head Width: 0.443-0.472", Head Height: 0.16-0.175", Driver Size: #3, Hardness: Rockwell B70-B100, Tensile Strength: 60,000 PSI minimum, Phillips Recess Depth: 0.121-0.147", Phillips Recess Diameter: 0.255-0.268", Slot Depth: 0.082-0.109", Slot Width: 0.064-0.075", Pack Type: Jar, Weight: 2.54 lbs

Installation & Usage

1. Select appropriate tap size for 1/4-20 thread in base material
2. Ensure tapped hole depth accommodates full thread engagement
3. Choose slotted or Phillips drive based on installation requirements and tool availability
4. Apply appropriate torque using #3 driver size for secure fastening without over-tightening
5. Verify proper thread engagement and bearing surface contact
6. Check fastener alignment and final positioning for professional installation

Professional Applications

Ideal for:

• Electrical Panel Assembly - Secure mounting of electrical components, switches, and control devices in panels and enclosures
• Equipment Mounting - Professional installation of electrical equipment, junction boxes, and conduit accessories
• Plumbing Fixtures - Reliable fastening of plumbing components, valve assemblies, and pipe support systems
• HVAC System Installation - Secure mounting of heating and air conditioning components, ductwork supports, and control panels
• Industrial Assembly - Machine assembly, equipment maintenance, and component replacement in industrial settings
• Commercial Construction - Professional fastening applications in commercial buildings and institutional facilities
• Maintenance Operations - Equipment repair, component replacement, and system upgrades requiring reliable fastening
• Control Panel Wiring - Secure mounting of terminal blocks, relays, and electrical components in control systems

Steel Zinc Construction Advantage

The steel zinc construction provides excellent strength-to-weight ratio with enhanced corrosion resistance for indoor applications. The zinc finish offers protection against moisture and environmental factors while maintaining the high tensile strength required for demanding electrical, plumbing, and HVAC installations. The AISI 1006-1022 steel specification ensures consistent material properties and reliable performance across all applications.

Why Choose Metallics Industries Quality?

Metallics Industries pioneered the combo drive fastener concept in America in 1985, demonstrating our commitment to innovation and professional solutions. Our precision manufacturing processes ensure consistent thread quality, accurate dimensions, and reliable performance. Each machine screw undergoes comprehensive quality testing to meet the demanding requirements of electrical, plumbing, and HVAC professionals. Trust Metallics Industries for superior fastening solutions that deliver the reliability and performance your projects demand.