Hi-Collar Helical Spring Lock Washers

Hi-Collar helical spring lock washers are split lock washers featuring a taller collar profile that provides increased bearing height compared to conventional helical spring lock washers. The helical design applies spring tension as the fastener is tightened, while the raised collar helps distribute clamping force beneath the fastener head or nut. These washers are commonly used with hex head cap screws, socket head cap screws, machine screws, studs, and other externally threaded fasteners in industrial assemblies.

Hi-Collar helical spring lock washers are widely specified for machinery, automation equipment, pumps, motors, conveyors, power transmission equipment, agricultural equipment, maintenance repairs, industrial enclosures, OEM manufacturing, and general mechanical assemblies. Their compact design makes them suitable for a broad range of fastening applications where a spring lock washer is specified as part of the assembly.

Proper washer selection should consider the fastener size, mating materials, available bearing surface, installation requirements, and overall joint design. Individual product pages provide verified inside diameter, outside diameter, thickness, and applicable screw size where available to assist engineers and purchasing professionals in selecting the correct washer.

Cold Headers supplies Hi-Collar helical spring lock washers in a broad range of inch sizes, including standard and difficult-to-source configurations. Our catalog helps engineers, distributors, maintenance teams, and purchasing professionals quickly locate the exact industrial washer required for demanding applications.

Why Choose Hi-Collar Helical Spring Lock Washers?

• Raised collar profile: Provides greater bearing height than conventional helical spring lock washers.
• Helical spring design: Commonly specified for industrial bolted assemblies.
• Wide fastener compatibility: Used with socket head cap screws, hex head cap screws, machine screws, studs, and nuts.
• Industrial applications: Frequently used in machinery, equipment, maintenance, and OEM manufacturing.
• Verified dimensions: Product pages provide applicable fastener size and dimensional information where available.

Selecting the Correct Hi-Collar Lock Washer

Begin by confirming the required fastener size and matching washer dimensions. Review the inside diameter, outside diameter, thickness, available bearing surface, mating materials, and assembly requirements before selecting a washer. Final selection should reflect the mechanical design and service conditions of the completed assembly.

Cold Headers Inc. has supplied specialty industrial fasteners since 1962. Our catalog helps engineers, distributors, maintenance teams, and purchasing professionals locate exact sizes and difficult-to-find industrial fastening products without unsupported inventory claims.

Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.