Metallics Self-Drilling & Tapping Screw #10 x 1-1/4" Steel Zinc Indented Hex Head with Washer #2 Drill Point

Metallics Industries Self-Drilling & Tapping Screw #10 x 1-1/4" Steel Zinc Indented Hex Head with Washer #2 Drill Point

Professional Self-Drilling Fastener with Integrated Washer

The Metallics Industries Self-Drilling & Tapping Screw delivers exceptional performance and reliability for electrical, plumbing, heating and air conditioning applications. This steel zinc self-drilling fastener with integrated washer 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

Advanced Self-Drilling Performance

• #2 Drill Point Design - Eliminates pre-drilling requirements with efficient chip removal and precise penetration through steel panels up to 0.110 inches thick
• Type BSD Self-Drilling & Tapping Construction - Combines drilling and tapping operations in one fastener for faster installation and reduced labor costs
• Steel Zinc Material with Rockwell C32-40 Hardness - Provides superior strength and corrosion resistance meeting AISI 1016-1024 material standards for demanding applications
• Integrated Washer Design - Built-in washer with 0.384-0.414 inch outer diameter distributes load and prevents panel damage during installation

Professional Installation Features

• 5/16 Indented Hex Head with Hex Drive - Provides secure tool engagement and high torque transfer with 61 lb-in minimum torsional strength for reliable fastening
• 16 Threads Per Inch SAE J78-2013 Standard - Ensures consistent thread engagement and holding power in thin to medium gauge steel applications
• Zinc Finish Protection - Delivers corrosion resistance for indoor and outdoor electrical installations in HVAC and plumbing systems

Technical Specifications

Material: Steel Zinc, Finish: Zinc, Length: 1-1/4 inches, Diameter: #10, Thread Per Inch: 16, Drill Point Size: #2, Drive Type: Hex, Fastener Head Type: Indented Hex, Fastener Head Height: 0.105-0.12 inches, Fastener Head Width: 0.305-0.312 inches, Hardness: Rockwell C32-40, Torsional Strength: 61 lb-in minimum, Panel Thickness Range: 0.035-0.110 inches, Washer OD: 0.384-0.414 inches, Washer Thickness: 0.019-0.031 inches, Material Standard: AISI 1016-1024, Thread Standard: SAE J78-2013, Dimensional Standard: ASME B18.6.3-2010, Pack Type: Jar, Weight: 0.875 lbs

Installation & Usage

1. Select appropriate hex driver bit for secure tool engagement with indented hex head design
2. Position screw perpendicular to work surface ensuring proper alignment for straight penetration
3. Apply steady downward pressure while drilling to maintain consistent feed rate through steel panel
4. Continue drilling until washer contacts work surface and screw head is properly seated
5. Apply final torque to achieve secure fastening without over-tightening beyond 61 lb-in specification
6. Verify proper thread engagement and washer compression for optimal holding power and load distribution

Professional Applications

Ideal for:

• Electrical Panel Installation - Securing electrical panels, junction boxes, and conduit fittings to steel structures and mounting brackets
• HVAC System Assembly - Fastening ductwork, air handling units, and ventilation components to steel framework and supports
• Plumbing Applications - Mounting pipe brackets, valve assemblies, and plumbing fixtures to steel structural members
• Industrial Equipment Mounting - Securing machinery housings, control panels, and equipment enclosures to steel frames
• Construction Fastening - Attaching metal roofing, siding panels, and structural components in commercial building applications
• Maintenance and Repair - Field repairs and modifications requiring reliable fastening through thin to medium gauge steel materials
• Electrical Conduit Systems - Mounting conduit straps, cable trays, and electrical hardware to steel support structures
• Metal Fabrication Assembly - Joining steel components in fabrication shops and field assembly operations

Steel Zinc Construction Advantage

The steel zinc construction with Rockwell C32-40 hardness provides exceptional drilling performance and thread forming capability while the zinc finish offers reliable corrosion protection for electrical, plumbing, and HVAC installations. The AISI 1016-1024 material standard ensures consistent quality and performance in demanding professional applications where reliable fastening is critical.

Why Choose Metallics Industries Quality?

Metallics Industries' commitment to precision manufacturing ensures each self-drilling screw meets strict SAE J78-2013 and ASME B18.6.3-2010 standards for professional reliability. Our quality materials and zinc finish provide dependable performance for contractors and industrial professionals, with comprehensive product testing and trusted solutions specifically engineered for electrical, plumbing, HVAC, and construction applications where precision fastening and long-term durability are essential.