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Minerallac Company 57216 - A heavy full-bodied wood screw with a hexagonal head, spaced threads, and a gimlet point. It is made of steel with a zinc plated finish for use in wood in non-corrosive environments. The screw is 5/16 in size and 1 in long, with a 9 TPI thread and a hex head.
Minerallac Company

57216

Alternate Item Number: 12114420

UPC: 085937572165

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Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The Minerallac Company 5/16 x 1" Hex Head Lag Screw (SKU 57216) is a heavy-duty wood screw engineered for structural framing and lumber joining applications. Made from high-strength zinc-plated steel, this lag screw provides superior corrosion resistance in outdoor and industrial environments, ensuring long-term reliability even in harsh conditions. The hex head design allows for high-torque installation using standard wrenches or socket sets, delivering a secure and stable connection that resists loosening under stress. With a 5/16" diameter and 1" length, it is ideal for attaching fixtures to wooden substrates or joining structural lumber where significant holding power is required. The sharp, self-tapping point reduces pre-drilling needs, while the coarse threading ensures a tight grip in wood. Manufactured in the US by Minerallac Company, a trusted supplier of industrial fasteners since 1926, this screw meets the demands of heavy-duty construction and woodworking projects. Its zinc plating provides a durable finish that withstands weather exposure, making it suitable for both indoor and outdoor applications. The precision-engineered threading and robust construction ensure consistent performance in load-bearing applications, from deck building to structural framing.
  • 5/16" diameter x 1" length for heavy-duty wood connections
  • Zinc-plated steel for corrosion resistance in outdoor applications
  • Hex head design allows high-torque installation with standard tools
  • Ideal for structural framing, lumber joining, and fixture attachment
  • Manufactured in the US by Minerallac Company, a trusted industrial fastener supplier

Specifications

Application
For use in wood in non-corrosive environments.
Finish
Zinc Plated
Head Color
Silver
Head Height
7/32" IN
Head Type
Hex Head
Head Width
1/2" IN
Length
1" IN
Material
Steel
Material
Zinc
Size
5/16 IN
Thread Size
9 TPI
Type
Hex Lag Screws
Package Weight (Imperial)
2.5 lbs
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57256

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74312

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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.