Authorized Minerallac Company Distributor
Minerallac Company 42515 - A coiled, hardened, split circular lock washer with a slightly trapezoidal wire section. It is made of silicon and has a bronze color. The washer has a thickness of 0.047 in, an outside diameter of 0.334 in, and an inside diameter of 0.200 in.
Minerallac Company

42515

Alternate Item Number: 12114041

UPC: 085937425157

Documents & Media
Specification SheetManufacturer Product Website

Contact for Pricing

Minimum Qty: 100

Multiplier: 100

*Contact for lower quantities*

Overview

Minerallac Company SKU 42515 is a #10 Silicon Bronze Split Lock Washer, supplied in a 100-pack. Engineered from high-quality Silicon Bronze (Alloy 651), this washer delivers exceptional corrosion resistance and electrical conductivity, making it ideal for securing copper and aluminum wire connections in electrical systems. Its hardened split design actively increases bolt tension per unit of applied torque, effectively resisting loosening caused by vibration and thermal expansion to ensure sustained connection security. Key specifications include a thickness of 0.047 inches, an outside diameter of 0.334 inches, and an inside diameter of 0.200 inches. The medium split design balances strength and flexibility for reliable retention and uniform torque control, featuring a hardened bearing surface for consistent load distribution. Typical applications include marine hardware, critical electrical connections, chemical processing equipment, and outdoor infrastructure where corrosion resistance, vibration-proof fastening, and reliable conductivity are essential. The washer is compliant with UNSPSC code 31161801 and meets Buy America Act requirements, ensuring adherence to industry standards for safety and reliability.
  • Material: Silicon Bronze (Alloy 651)
  • Type: Split Lock Washer
  • Thickness: 0.047 inches
  • Outside Diameter: 0.334 inches
  • Inside Diameter: 0.200 inches
  • Rockwell Hardness: C38-43
  • Corrosion and vibration resistant
  • Provides increased bolt tension and resists loosening
  • Excellent electrical conductivity
  • Manufactured in the USA

Specifications

Application
Provides a hardened bearing surface, creating more uniform torque control and load distribution.
Color
Bronze
Inside Diameter
0.200" IN
Material
Silicon Bronze
Material
Silicon
Material
Silicon Bronze (Alloy 651)
Outside Diameter
0.334" IN
Rockwell Hardness
C38 - 43
Size
#10 Medium Split
Size
[object Object]
Size
#10
Special Features
Applies greater bolt tension per unit of applied torque. Resists loosening caused by vibration and corrosion.
Thickness
0.047" IN
Type
Split Lock Washer
Package Weight (Imperial)
0.09 lbs
Split lock washers for #10 fasteners. They are made of silicon bronze with a bronze color and medium thickness. The washer has an inside diameter of 0.200 in and an outside diameter of 0.334 in.

42515J

Split lock washers for #10 fasteners. They are made of silicon bronze with a bronze color and medium thickness. The washer has an inside diameter of 0.200 in and an outside diameter of 0.334 in.
3/8 Split Lock Washer Silicon Bronze.

SBSLW38-C

3/8 Split Lock Washer Silicon Bronze.
Washer, Lock, Size 1/4 Inch, Stainless Steel

E148-1/4SS

Washer, Lock, Size 1/4 Inch, Stainless Steel
A 5/8 inch split lock washer made of silicon bronze. It is bronze in color and has an outside diameter of 1.073 in, an inside diameter of 0.641 in, and a thickness of 0.156 in. The washer is intended to provide a hardened bearing surface, more uniform torque control, and load distribution while resisting loosening from vibration and corrosion.

42545

A 5/8 inch split lock washer made of silicon bronze. It is bronze in color and has an outside diameter of 1.073 in, an inside diameter of 0.641 in, and a thickness of 0.156 in. The washer is intended to provide a hardened bearing surface, more uniform torque control, and load distribution while resisting loosening from vibration and corrosion.
A coiled, hardened, split circular lock washer with a slightly trapezoidal wire section. It is made of silicon and finished in bronze. The washer has a 0.125 in thickness, 0.869 in outside diameter, and 0.512 in inside diameter.

42540

A coiled, hardened, split circular lock washer with a slightly trapezoidal wire section. It is made of silicon and finished in bronze. The washer has a 0.125 in thickness, 0.869 in outside diameter, and 0.512 in inside diameter.
Split lock washer made of silicon bronze. It is designed to apply greater bolt tension per unit of applied torque and resist loosening caused by vibration and corrosion. The washer provides a hardened bearing surface for more uniform torque control and load distribution. Dimensions listed are 0.188" thickness, 1.265" outside diameter, and 0.766" inside diameter.

42550

Split lock washer made of silicon bronze. It is designed to apply greater bolt tension per unit of applied torque and resist loosening caused by vibration and corrosion. The washer provides a hardened bearing surface for more uniform torque control and load distribution. Dimensions listed are 0.188" thickness, 1.265" outside diameter, and 0.766" inside diameter.
A split lock washer made of stainless steel with a stainless finish. It has a thickness of 0.125 in, an outside diameter of 0.869 in, and an inside diameter of 0.512 in. The washer is silver in color and has Rockwell hardness C35-43.

70540

A split lock washer made of stainless steel with a stainless finish. It has a thickness of 0.125 in, an outside diameter of 0.869 in, and an inside diameter of 0.512 in. The washer is silver in color and has Rockwell hardness C35-43.
This is a 5/8 inch split lock washer. It is made of stainless steel with a stainless finish and is intended to resist loosening caused by vibration and corrosion. The washer provides a hardened bearing surface for more uniform torque control and load distribution.

70545

This is a 5/8 inch split lock washer. It is made of stainless steel with a stainless finish and is intended to resist loosening caused by vibration and corrosion. The washer provides a hardened bearing surface for more uniform torque control and load distribution.

Frequently Asked Questions

What material is the Minerallac #10 lock washer made from?

The Minerallac #10 lock washer (SKU 42515) is made from silicon bronze.

How many lock washers are included in a jar?

Each jar of Minerallac #10 Silicon Bronze Split Lock Washers contains 100 washers.

Where are Minerallac lock washers manufactured?

Minerallac lock washers, including SKU 42515, are manufactured in the USA.

What applications are suitable for silicon bronze lock washers?

Silicon bronze lock washers are suitable for marine, electrical enclosure, and industrial machinery applications, including those with saltwater exposure or chemical contact.

Does this lock washer prevent galvanic corrosion?

Yes, the silicon bronze construction prevents galvanic corrosion when paired with dissimilar metals.

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.