Minerallac Company 73240 - Self-tapping sheet metal screw for use with sheet metal. It is made of 18-8 stainless steel with a stainless steel finish. The screw is size 12 x 2-1/2 in., with a flat head and square drive.
Minerallac Company

73240

Alternate Item Number: 12115142

UPC: 085937732408


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Minimum Qty: 100

Multiplier: 100

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Overview

The Minerallac Company 73240 is a #12 x 2-1/2" Type 18-8 stainless steel flat head square drive sheet metal screw designed for tapping applications. This screw combines corrosion resistance with reliable fastening in metal-to-metal or metal-to-wood connections. The 18-8 stainless steel composition provides excellent resistance to rust, oxidation, and chemical exposure, making it ideal for outdoor, marine, or industrial environments where durability is critical. The square drive recess ensures high torque transfer and reduces cam-out compared to Phillips drives, while the flat head allows for flush mounting without protruding surfaces. Common applications include HVAC ductwork, electrical enclosures, signage, and general sheet metal fabrication where a secure, tamper-resistant fastener is required. The 2-1/2" length provides sufficient grip in typical sheet metal thicknesses up to 1/8". This screw is a direct replacement for standard tapping screws in applications requiring stainless steel construction.
  • Material: 18-8 Stainless Steel for superior corrosion resistance
  • Size: #12 x 2-1/2" for secure fastening in sheet metal up to 1/8" thick
  • Drive Type: Square drive for high torque transfer and reduced cam-out
  • Head Type: Flat head for flush mounting without surface protrusion
  • Applications: HVAC, electrical enclosures, signage, and general sheet metal fabrication

Specifications

Application
For use with sheet metal.
Drive Type
Square Drive
Drive Type
Square
Drive Type
Other
Driver Size
#2
Finish
Stainless Steel
Head Color
Silver
Head Height
0.122 in
Head Height
3.0988 mm
Head Type
Flat Head
Head Width
0.396 in
Head Width
10.0584 mm
Length
2.5 in
Length
63.5 mm
Material
18-8 Stainless Steel
Material Quality
18-8 Stainless Steel
Size
12 x 2-1/2"
Thread Size
11 TPI
Thread Type
Type-A
Type
Sheet Metal Screw
Package Weight (Imperial)
1.8 lbs
A self-tapping sheet metal screw for use with sheet metal. It is made of 18-8 stainless steel with a stainless steel finish. The screw is size 14 x 2-1/2 in., with a flat head and square drive.

73440

A self-tapping sheet metal screw for use with sheet metal. It is made of 18-8 stainless steel with a stainless steel finish. The screw is size 14 x 2-1/2 in., with a flat head and square drive.
14 x 2-1/4 Pan Head Phillips Tapping Screw Steel Zinc u/m 800

TSP67B

14 x 2-1/4 Pan Head Phillips Tapping Screw Steel Zinc u/m 800

Frequently Asked Questions about Minerallac Company

What are the main product lines offered by Minerallac Company?

Minerallac Company offers multiple comprehensive product lines including Minerallac Traditional (electrical fasteners), Strut Fittings, Stainless Steel Fasteners, Black Claw, Impact Staples, and Redmore. Their Traditional line features over a thousand electrical fastener variations covering conduit/cable/wire products, nail straps, beam clamps, metal stud & drywall accessories, acoustical supports, voice/data hardware, and miscellaneous electrical installation components.

What is Minerallac Company's warranty policy?

Minerallac Company provides a limited warranty that guarantees all products are free from defects in material and workmanship. If a product fails to meet this warranty, Minerallac's sole liability is to replace the product at no charge. The warranty is exclusive and does not cover consequential damages, lost profits, or implied warranties of merchantability or fitness for a particular purpose.

What industries and applications are Minerallac Company products used for?

Minerallac Company products are used extensively across electrical, construction, and industrial applications, including conduit and cable support, beam mounting, metal stud and drywall installation, voice/data infrastructure, and low voltage systems. Their product lines cover critical fastening solutions for electrical contractors, with specialized offerings in conduit hangers, straps, beam clamps, cable supports, and mounting hardware for various industrial environments.

What technical support does Minerallac Company offer?

Minerallac Company offers comprehensive technical support through multiple channels, including a toll-free customer service line at 800-927-3293, email support at [email protected], and online resources at www.minerallac.com. Their support covers product selection, technical specifications, and customer service for their extensive line of electrical fasteners, hangers, straps, and hardware across multiple product brands including Minerallac Traditional, Cully, Black Claw, IMPACT Staples, and Minerallac Stainless Steel. Support hours are 8:00 A.M. to 5:00 P.M. CT for their corporate office and 8:00 A.M. to 5:00 P.M. PT for their regional office.

What are the key features of Minerallac Company products?

Minerallac Company products feature a comprehensive range of electrical fasteners and hardware with exceptional versatility, including over 1,000 different sizes, styles, and finishes. Key features include multiple product lines such as Traditional, Strut Fittings, and Stainless Steel options with specialized finishes like 304/316 Stainless Steel, Hot-Dipped Galvanized, and Zinc Electroplate. Their products are engineered for electrical contractors, offering time-saving solutions with high-quality fasteners designed for durability, corrosion resistance, and worker safety across various installation environments.

What environmental ratings do Minerallac Company products have?

Minerallac Company products have robust environmental ratings, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13 certifications, CSA Type 1-4X, 12, and 13 ratings, and IEC 60529 IP66 protection. The products are WEEE and RoHS compliant, with UV and oil resistance, and can operate in extreme temperatures ranging from -55°C to 105°C, making them suitable for harsh industrial environments.

What accessories are available for Minerallac Company products?

Minerallac Company offers a comprehensive range of accessories across multiple product categories, including hardware, fasteners, and mounting solutions. Key accessories include stove bolts with nuts, wing nut washers, bar joist washers, stud clip adapters, brackets, perforated strapping, cable support options like J-hooks and bridle rings, box mounting brackets, outlet retainers, and various stud and drywall supports. Their accessories are available in multiple finishes such as stainless steel, hot-dipped galvanized, zinc electroplate, and powder-coated options.

How are Minerallac Company products typically installed?

Minerallac Company products are typically installed using a variety of specialized fastening solutions, including conduit hangers, straps, beam clamps, and mounting brackets designed for different electrical and construction applications. Installation methods vary by product type, with options for metal studs, drywall, beams, acoustical surfaces, and low voltage systems. The company offers multiple installation styles such as one-hole and two-hole straps, universal beam clamps, and specific mounting hardware to ensure secure and efficient attachment across diverse electrical and construction environments.

What communication protocols do Minerallac Company products support?

Minerallac Company's Brad product line supports multiple industrial communication protocols, including Ethernet, DeviceNet, PROFIBUS, Modbus, CANopen, Serial, AS-interface, and CC-Link. Their comprehensive portfolio covers over 40 industrial protocols, providing flexible communication solutions for various industrial automation applications from PC-based control to PLC systems.