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Minerallac Company 40510 - A coiled, hardened split circular lockwasher with a slightly trapezoidal wire section. It is made of steel with a zinc-plated finish and is intended to provide a hardened bearing surface for more uniform torque control and load distribution. The washer has a thickness of 0.040 in, an outside diameter of 0.293 in, and an inside diameter of 0.174 in.
Minerallac Company

40510

Alternate Item Number: 12113977

UPC: 085937405104

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Minimum Qty: 100

Multiplier: 100

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Overview

The Minerallac Company 40510 #8 Medium Split Lock Washer is a US-manufactured steel fastener designed to prevent threaded connections from loosening due to vibration. Its medium split ring design provides reliable tension retention for standard #8 fasteners. The zinc plating offers essential corrosion resistance, making it suitable for both indoor and outdoor industrial, construction, and mechanical applications. This washer is ideal for use in HVAC systems, electrical enclosures, and metal fabrication projects where maintaining joint integrity under stress is critical. Manufactured by Minerallac Company, a trusted name in fasteners, this lock washer ensures dependable performance and longevity in demanding environments. Its steel construction, combined with zinc plating, offers a balance of strength and protection against environmental factors. The #8 size is a common specification for many assembly and repair tasks, ensuring broad compatibility with existing hardware. Trust Minerallac for fasteners that perform.
  • Prevents loosening under vibration
  • Zinc-plated steel for corrosion resistance
  • Medium split design for #8 fasteners
  • US-made by Minerallac Company
  • Ideal for industrial, construction, and mechanical applications

Specifications

Application
Provides a hardened bearing surface, creating more uniform torque control and load distribution.
Color
Silver
Finish
Zinc Plated
Inside Diameter
0.174" IN
Material
Zinc
Material
Steel
Outside Diameter
0.293" IN
Rockwell Hardness
C38 - 43
Size
#8
Special Features
Applies greater bolt tension per unit of applied torque. Resists loosening caused by vibration and corrosion.
Thickness
0.040" IN
Type
Split Lock Washer
Package Weight (Imperial)
0.06 lbs
This is a #8 split lock washer in medium size, supplied in a jar. It is made of steel with a zinc plated finish and silver color. The washer is intended to apply greater bolt tension per unit of applied torque, resist loosening caused by vibration and corrosion, and provide a hardened bearing surface for more uniform torque control and load distribution.

40510J

This is a #8 split lock washer in medium size, supplied in a jar. It is made of steel with a zinc plated finish and silver color. The washer is intended to apply greater bolt tension per unit of applied torque, resist loosening caused by vibration and corrosion, and provide a hardened bearing surface for more uniform torque control and load distribution.
1/4 Split Lock Washer Zinc u/m 5,000

LW1725M

1/4 Split Lock Washer Zinc u/m 5,000
A coiled, hardened split circular washer with a slightly trapezoidal wire section. It is made of steel with a zinc-plated finish and is intended to provide a hardened bearing surface for more uniform torque control and load distribution. The washer measures 0.031 in thick, with a 0.250 in outside diameter and a 0.148 in inside diameter.

40505

A coiled, hardened split circular washer with a slightly trapezoidal wire section. It is made of steel with a zinc-plated finish and is intended to provide a hardened bearing surface for more uniform torque control and load distribution. The washer measures 0.031 in thick, with a 0.250 in outside diameter and a 0.148 in inside diameter.
A split lock washer for use with 3/4" bolt sizes. It is made of steel with a zinc plated finish and silver color. The washer has an outside diameter of 1.265", an inside diameter of 0.780", and a thickness of 0.188". Rockwell hardness is C38 - 43.

40550

A split lock washer for use with 3/4" bolt sizes. It is made of steel with a zinc plated finish and silver color. The washer has an outside diameter of 1.265", an inside diameter of 0.780", and a thickness of 0.188". Rockwell hardness is C38 - 43.
3/8 in. split lock washer in medium size. It is made of steel with a zinc plated finish and silver color. The washer has a thickness of 0.094 in., an outside diameter of 0.680 in., and an inside diameter of 0.385 in. Rockwell hardness is C38 - 43.

40535BFG

3/8 in. split lock washer in medium size. It is made of steel with a zinc plated finish and silver color. The washer has a thickness of 0.094 in., an outside diameter of 0.680 in., and an inside diameter of 0.385 in. Rockwell hardness is C38 - 43.
This is a split lock washer with a medium profile. It is made of steel with a zinc plated finish and is silver in color. The washer is 0.094" thick, with an outside diameter of 0.680" and an inside diameter of 0.385". It is designed to apply greater bolt tension per unit of applied torque and resist loosening caused by vibration and corrosion.

40535-1000

This is a split lock washer with a medium profile. It is made of steel with a zinc plated finish and is silver in color. The washer is 0.094" thick, with an outside diameter of 0.680" and an inside diameter of 0.385". It is designed to apply greater bolt tension per unit of applied torque and resist loosening caused by vibration and corrosion.
Split lock washer made of steel with a zinc plated finish. It is a medium 1/4" washer 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.

40525-1000

Split lock washer made of steel with a zinc plated finish. It is a medium 1/4" washer 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.
A split lock washer for use where increased bolt tension and resistance to loosening are needed. It is made of steel with a zinc plated finish and silver color. The washer has a thickness of 0.125", an outside diameter of 0.869", and an inside diameter of 0.512".

40540BFG

A split lock washer for use where increased bolt tension and resistance to loosening are needed. It is made of steel with a zinc plated finish and silver color. The washer has a thickness of 0.125", an outside diameter of 0.869", and an inside diameter of 0.512".

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.