Minerallac Company 70745 - A flat fender washer with significantly more surface area than a USS or SAE washer. It is made from 18-8 stainless steel with a stainless finish. The washer has a 3/8 in inside diameter, 1-1/2 in outside diameter, and 0.047 in to 0.080 in thickness.
Minerallac Company

70745

Alternate Item Number: 12115044

UPC: 085937707451


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Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

The Minerallac Company SKU 70745 is a 3/8" x 1-1/2" Fender Washer constructed from durable 18-8 Stainless Steel, meeting ASTM A240 standards for corrosion resistance and mechanical properties. This washer features a large outer diameter of 1.5 inches relative to its central hole size of 3/8 inches, providing an increased bearing surface area of approximately 1.77 square inches. This larger surface area is critical for effectively spreading the load over softer materials like wood, plywood, fiberglass, or lighter gauge sheet metal, reducing the risk of fastener damage, pull-through, or deformation to the substrate. The 18-8 stainless steel composition (comprising 18% chromium and 8% nickel) offers excellent corrosion resistance in both indoor and outdoor environments, making these washers suitable for applications exposed to moisture, humidity, salt spray, or mild chemicals. Each jar contains 100 washers, packaged for easy handling and inventory management. Minerallac Company, established in 1947, is a trusted name in industrial fasteners, providing functional and robust solutions for electrical, mechanical, and construction applications. The 3/8" inner hole and 1-1/2" outer diameter are ideal for broad force distribution in fastening systems requiring enhanced stability and load transfer, particularly in wood framing, panel installations, and light structural connections.
  • Material: 18-8 Stainless Steel for corrosion resistance
  • Size: 3/8" inner diameter x 1-1/2" outer diameter
  • Large outer diameter distributes load over a wider area
  • Reduces risk of damaging softer materials like wood or sheet metal
  • Each jar contains 100 washers

Specifications

Application
Used where an extra wide bearing surface is required. Originally designed for auto body repair work, they are also used in sheet metal, plumbing, and electrical work.
Finish
Stainless
Inside Diameter
3/8" IN
Material
18-8 Stainless Steel
Outside Diameter
1-1/2" IN
Thickness
0.047" – 0.080" IN
Type
Fender Washer
Package Weight (Imperial)
2.7 lbs
Fender washer with a 3/8" inside diameter and 1-1/4" outside diameter. Made of 18-8 stainless steel with a stainless finish. Thickness is listed as 0.047"–0.080".

70743J

Fender washer with a 3/8" inside diameter and 1-1/4" outside diameter. Made of 18-8 stainless steel with a stainless finish. Thickness is listed as 0.047"–0.080".
1/4 x 1-1/4 Fender Washer 316 Stainless Steel

JW1161SS

1/4 x 1-1/4 Fender Washer 316 Stainless Steel
Washer, Fender, Size 1/2 Inch, Diameter 2 Inches, Type 316 Stainless Steel

EF147-1/2SS6

Washer, Fender, Size 1/2 Inch, Diameter 2 Inches, Type 316 Stainless Steel

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.