HK Metalcraft

What HK Metalcraft does

HK Metalcraft Manufacturing Corporation is a privately held, family-operated precision metal components manufacturer founded in 1926 and headquartered at 35 Industrial Road, Lodi, New Jersey. The company produces engineered washers, gaskets, and custom stamped metal parts for OEMs and Tier suppliers across automotive, construction, aerospace, rail, agriculture, fasteners, trucking, control valves, beverage, electronic connectors, marine, defense, office equipment, bicycles, lighting, medical, outdoor power equipment, and HVAC industries. Its catalog spans Belleville springs, wave springs, spring retainers, copper solenoid washers, captive and sandwich gaskets, conical captive designs, and a proprietary Hi-Stak® Spring Pak® line, supported by a tooling library of more than 70,000 stock die sizes and custom part manufacturing capabilities.

The company operates a stamping and annealing production platform built around a deep catalog of in-house tooling, with quality and process control managed through an ERP system and certified to ISO 9001 and IATF 16949 (the latter valid through October 2026), along with a SHARP 2024 safety credential. Go-to-market combines a US and international independent manufacturers' representative network (covering the Americas, Europe, and Asia) with a direct online catalog channel. Customer engagement is largely project-based and quote-driven, with the 70,000+ SKU catalog supporting short-lead-time fulfillment of both standard and custom specifications.

The revenue model is industrial build-to-print / catalog fulfillment: parts are sold per unit against customer specifications, with pricing tied to material, tooling complexity, and order quantity. Distribution is rep-mediated for engineered accounts and direct for catalog buyers. No external funding, M&A, or public-company signals are present in the inputs; the business has remained independently operated across nearly a century, sustained by long-tenured engineering know-how, qualified-industry certifications, and a tooling base that is capital-intensive for any new entrant to replicate.

Name

HK Metalcraft

Legal name

HK Metalcraft Manufacturing Corporation

Website

https://hkmetalcraft.com

Company type

Private

Founded year

1926

Operating status

Operating

Headcount range

11–50 employees

Short description

HK Metalcraft Manufacturing Corporation, founded 1926 and headquartered in Lodi, New Jersey, is a privately held precision metal stamper producing engineered washers, gaskets, and custom stamped components for automotive, aerospace, defense, medical, industrial, and consumer OEMs under IATF 16949 and ISO 9001 certifications.

Ownership category

akta.pro rank

Headquarters

HQ city

Lodi

HQ country

United States

HQ region

North America

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Supply Chain, Operations, Technology or R&D, Marketing or Sales, Infrastructure

Revenue model

1. Custom Metal Stampings Manufacturing: Manufactures custom precision metal stampings including washers, gaskets, and custom engineered metal components. Revenue derived from custom manufacturing services and standard product catalog sales.
2. Standard Product Catalog: Online catalog offering standard washers (Belleville Spring, Slotted Belleville, Cylindrically Curved, Wave Spring, Spring Retainers, Cup, Flange Cup, Finishing) and gaskets (Flat Steel, Flat Copper, Rounded Copper, Captive, Conical Captive, Screw-On, Over-The-Thread, C-Shaped, Sandwich).

Go-to-market motion2 records

Distribution channels3 records

Marketing channels2 records

Core offering

HK Metalcraft manufactures custom engineered metal components, specializing in precision metal stampings including washers, gaskets, and small stamped metal parts. The company operates from a single facility in Lodi, New Jersey, serving industrial manufacturers across automotive, aerospace, medical, defense, construction, and other sectors with capabilities spanning Design For Manufacturing, prototyping, full-scale production, and supply chain management. Standard products are offered through an online catalog covering 70,000+ tooling sizes.

Product overview

HK Metalcraft is a precision metal stamping manufacturer offering a comprehensive portfolio of custom engineered metal components. The product lineup centers on two core product families: Washers (including Belleville Spring Washers, Slotted Belleville Spring Washers, Cylindrically Curved Spring Washers, Wave Spring Washers, Spring Retainers, Cup Washers, Flange Cup Washers, Finishing Washers, Hi-Stak® Spring Pak®, Copper Solenoid Washers, and Stock Dies) and Gaskets (including Sandwich Gaskets, Conical Captive Gaskets, Captive Gaskets, Flat Steel Gaskets, Flat Copper Gaskets, Rounded Copper Gaskets, Screw-On Gaskets, Over-The-Thread Gaskets, and "C" Shaped Gaskets). The company provides custom manufacturing services from initial Design For Manufacturing through prototyping and full-scale production, with capabilities to work with materials including Stainless Steel, Steel, Aluminum, Copper, Brass, Bronze, and specialty alloys like Inconel and Monel.

Differentiator

Problem solved

Functional benefit

Brands

• Hi-Stak® Spring Pak®: Pre-stacked packages of Belleville Spring Washers available in spring-quality metal, used in lieu of coil springs or when space constraints are a consideration.

Products and services

• Belleville Spring Washers Conical disc spring washers widely used as compression springs to support large loads when space is limited. May be stacked for increased loads and deflection. Used as coil spring substitutes, for heavy preload, shaft preload, tension control with dissimilar metals, vibration reduction, and bus bar applications.
• Slotted Belleville Spring Washers Belleville Type Conical Disc Spring Washers with slots that reduce loads in relation to their number and size. Slots are used for orientation or to provide less load for a given amount of travel. Load range: tens of pounds to tons.
• Cylindrically Curved Spring Washers Washers that exhibit the most uniform spring constants over the widest range of deflection. Function properly when formed portions that make contact are free to slide. Load range: ounces to hundreds of pounds. Cannot be stacked to increase travel.
• Wave Spring Washers Washers that exhibit uniform spring constants as they are deflected. Used for preload for shafts, cushion springs, and endplay reduction. Load range: pounds to hundreds of pounds for light to medium loads.
• Spring Retainers Washers used to locate and center coil springs with an open design that facilitates their use in assemblies. Available in Steel, Stainless Steel, Aluminum, Copper, Brass and other malleable metals.
• Cup Washers Washers used as spring retainers and locators, centering washers, housings for assemblies, substitutes for larger heavier washers, spacers to reduce material usage and weight, end caps, and anti-tampering protection for fasteners. Available in Steel, Stainless Steel, Aluminum, Copper, Brass and other malleable metals.
• Flange Cup Washers Washers used as spring retainers and locators, centering washers, housings for assemblies, substitutes for larger heavier washers, spacers, end caps, and anti-tampering protection. Generally have greater overall height than Back Up Washers with deeper cup portions. Available in Steel, Stainless Steel, Aluminum, Copper, Brass and other malleable metals.
• Metric and Standard Finishing Washers Finishing washers for over-the-thread applications available from stock in Stainless Steel. Certain sizes available in Low Carbon Steel, High Carbon Steel and Brass. Includes Metric Pre-Assemblies, Pre-Assemblies, and Free Applications.
• Hi-Stak Spring Pak Pre-stacked packages of Belleville Spring Washers available in any spring-quality metal. Used in lieu of Coil Springs or when space constraints are a consideration. Guarantees correct orientation and allows handling of one part instead of many. Available in stacks of two to any number needed. Has solved engineering problems in Automotive, Construction, Medical, Computer, Industrial and Power Tools, and Window Systems industries.
• Copper Solenoid Washers Copper washers designed for solenoid applications with specific part numbers CSW-0001 through CSW-0007. Standard catalog items with various ID, OD, and thickness specifications.
• Stock Dies Standard tools on hand for over 70,000 sizes of flat washers. Components available with inside diameters up to 2" in every 1/64" increments and over 2" to 4" in every 1/16" increments. Can make parts to exact specifications if size not available.
• Sandwich Gaskets and Manifold Bolt French Locks Gaskets that sit between two major components, generally found in engines, to seal components ensuring maximum compression and avoiding leakage. Sandwich Gaskets consist of two metal containers sandwiching thermal millboard (non-asbestos insulating material). Manifold Bolt French Locks hold sandwich gaskets in place.
• Conical Captive Gaskets Gaskets designed to keep gases and fluids under pressure from leaking. Manufactured from Steel (annealed to 120 Knoop maximum hardness) or Copper (annealed to 70 Knoop maximum hardness). Available for over-the-thread, screw-on, stake-on, and pre-assembly (captive) applications. Replaces rubber, fiber, aluminum, and asbestos gaskets. Applications include Front Wheel Drives, Fuel Injection, Hydraulics, Oil Pumps, Oil Drain Plugs, Pollution Control, Sensors, Spark Plugs, and Transmission Lines.
• Captive Gaskets (Pronged I.D.) Gaskets manufactured from Steel (annealed to 120 Knoop maximum hardness) or Copper (annealed to 70 Knoop maximum hardness). Solve engineering problems by replacing rubber, fiber, aluminum, asbestos gaskets. Applications include front wheel drives and oil drain control.
• Flat Steel Gaskets Gaskets used as a seal between two surfaces to prevent leaks of gases or fluids. Frequently used internally to the assembly, such as sealing the surface between a machined or upset shell holding the assembly and a ceramic insert.
• Flat Copper Gaskets Gaskets used as a seal between two surfaces to prevent leaks of gases or fluids. Frequently used externally in assembly, such as sealing the surface between a machined or upset shell and a mating machined surface. Copper's softness allows it to flow readily into small surface irregularities.
• Rounded Copper Gaskets Gaskets used as a seal between two surfaces to prevent leaks of gases or fluids. Used both internally and externally where an inside diameter lead is required. Used to seal between a machined, cold headed or forged shell and a mating machined surface.
• Screw-On Gaskets Gaskets designed to keep gases and fluids under pressure from leaking. Steel gaskets are annealed to 120 Knoop maximum hardness; Copper gaskets to 70 Knoop maximum hardness. Solve engineering problems by replacing rubber, fiber, aluminum, and asbestos gaskets.
• Over-The-Thread Gaskets Gaskets designed for over-the-thread applications to keep gases and fluids under pressure from leaking.
• C-Shaped Gaskets C-shaped gaskets designed to keep gases and fluids under pressure from leaking. Manufactured from Steel (annealed to 120 Knoop maximum hardness) or Copper (annealed to 70 Knoop maximum hardness). Available for over-the-thread, screw-on, stake-on, and pre-assembly applications.
• Custom Made Parts Custom engineered metal components manufactured from initial design through full service manufacturing. Services include Design For Manufacturing, Prototyping, Manufacturing, and Supply Chain Management.

Named customers1 record

Segments6 records

Ideal customer profiles1 record

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Scale indicators4 records

Recent moves5 records

Expansion highlights4 records

Direct peers

• Stimpson Co. Stimpson Co. is a long-established (since 1862) precision metal stamping manufacturer producing eyelets, washers, grommets, snap fasteners, and custom stampings—directly comparable to HK Metalcraft's washer and custom stamping core product lines.
• Boker's, Inc. Boker's is a manufacturer of standard and custom metal stampings, flat washers, Belleville and disc springs, with a large tooling library—directly comparable to HK Metalcraft's Belleville/spring washer, flat washer, and custom stamping portfolio.
• MW Industries: MW Industries is a precision engineered components group producing disc springs (Belleville washers), retaining rings, and custom stampings across brands like Solon, Rotor Clip, and B-Card; directly overlaps HK Metalcraft's Belleville washer and Hi-Stak engineered-spring product lines.
• Spirol International: Spirol is a manufacturer of engineered fasteners, coiled and disc springs, shims, and precision stamped components—comparable to HK Metalcraft in serving similar spring/washer and custom-stamping applications across automotive and industrial markets.
• Rotor Clip Co. Rotor Clip is a specialist manufacturer of retaining rings, snap rings, and custom stampings—comparable to HK Metalcraft's custom small metal component capabilities and similar customer base in automotive and industrial applications.

Broad incumbents

• Illinois Tool Works (ITW): ITW is a diversified industrial manufacturer with multiple engineered components/fastener divisions that compete in the same precision metal stamping and washer/gasket markets as HK Metalcraft, but across a much broader portfolio.
• Bossard Group: Bossard is a global provider of fastening solutions including engineered fasteners and components, serving industrial OEMs across automotive and industrial markets—comparable as a broad incumbent in the fastening/components space adjacent to HK Metalcraft's business.
• Penn Engineering & Manufacturing Corp. Penn Engineering (PEM) is a global manufacturer of self-clinching fasteners and engineered metal components for sheet metal applications—comparable as a broad incumbent in precision-engineered metal components used in industrial assemblies.
• Associated Spring (Barnes Group Inc.): Barnes Group's Associated Spring division is a major manufacturer of precision mechanical springs including Belleville disc springs—directly adjacent to HK Metalcraft's core Belleville/spring washer product lines, though at significantly greater scale.
• Mueller Industries: Mueller Industries is a large manufacturer of copper, brass, aluminum, and various fabricated metal components for industrial markets—comparable as a broad incumbent in fabricated metal products, though at materially larger scale than HK Metalcraft.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat5 records

Key risks5 records

Key highlights7 records

Customer concentration

• Xx.com/hkmetalcraft

Compliance3 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles2 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about HK Metalcraft