NAGAHORI INDUSTRY CO., LTD.

What NAGAHORI INDUSTRY CO., LTD. does

NAGAHORI INDUSTRY CO., LTD. (DBA: NAC) is a privately held Japanese specialty manufacturer founded in 1966 in Osaka, focused on mechanical fastening and fluid-connection components for industrial customers. The company's four core product lines are quick couplings for fluid piping (CAL, CAT, CTL, CNS, CSPE, CSP, CSPV, CHP, CSH, CKC series in steel, brass, and SUS304 stainless steel), professional impact sockets for pneumatic and electric wrenches, driver sockets and bits for power-tool fastening (B-30/B-35/B-38/B-40/B-10/B-37/B-45 holders and bit variants), and Torx-licensed torque tools produced under license from Acument Intellectual Properties, LLC. A custom-made product service addresses unique customer specifications, drawing on proprietary processing technology and accumulated know-how.

The company's revenue model is B2B direct sales with quote-based pricing to Japanese enterprise manufacturers across automotive, heavy industry, aerospace, electronics, and household-equipment verticals. Named customers include Toyota, Honda, Nissan, Subaru, Daihatsu, Mazda, Mitsubishi Motors, Hino, IHI, Komatsu, Kubota, Kobelco, Mitsubishi Heavy Industries, YANMAR, JAL, Panasonic, Paloma, and Rinnai. Marketing channels are primarily direct sales, supported by a web-based product catalog and trade exhibitions, including recent participation at RoboDEX and ROBOT TECHNOLOGY JAPAN 2026.

In October 2024, the company entered a business and capital partnership with Asahi Apex Co., Ltd. (アサヒアペックス株式会社) to strengthen both companies' business foundations. The company has also begun marketing automation and robotics integration services targeting 'choco-tei' (minor production stoppages), obtained a patent for a new socket changer product in February 2026, and holds Class NK (Nippon Kaiji Kyokai) type approval on its SPE series SUS304 coupling for marine/industrial applications. Geographic reach remains domestic (Japan) with no disclosed international expansion.

Name

NAGAHORI INDUSTRY CO., LTD.

Legal name

長堀工業株式会社

Website

https://nac-corp.co.jp

Company type

Private

Founded year

1966

Operating status

Operating

Headcount range

1–10 employees

Short description

NAGAHORI INDUSTRY CO., LTD. (NAC) is a privately held Osaka-based Japanese manufacturer founded in 1966 that produces quick couplings, impact sockets, driver bits, and Torx-licensed fastening tools. The company sells directly to major Japanese automotive and heavy-industry OEMs including Toyota, Honda, Komatsu, and Mitsubishi Heavy Industries.

Ownership category

akta.pro rank

Product category

Industrial Fastening Tools

NAICS

Fluid Power Valve and Hose Fitting Manufacturing (332912)

SIC

Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050), Bolts, Nuts, Screws, Rivets & Washers (3452)

akta.pro primary industry

Pipe Fittings, Couplings & Connectors (IMADALAD)

akta.pro secondary industry

Hoses, Tubing & Fittings (Hydraulic/Pneumatic Lines & Connectors) (IMAHAGAH)

Keywords

• Quick couplings manufacturing
• Impact sockets production
• Fluid piping connectors
• Fastening tools supply
• Driver bits manufacturing

Headquarters

HQ city

Osaka

HQ country

Japan

HQ region

Asia

Offices2 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Operations, Supply Chain, Technology or R&D

Distribution channels1 record

Marketing channels3 records

Core offering

NAGAHORI INDUSTRY CO., LTD. manufactures precision fastening tools and fluid piping connection components, including quick couplings, impact sockets, driver sockets and bits, and Torx tools. The company serves Japanese industrial customers across automotive, heavy machinery, construction equipment, and general manufacturing sectors, and offers custom-made products engineered to specific customer specifications. Its product portfolio also includes eco-friendly non-drip couplings and patented socket-changing technology.

Product overview

NAGAHORI INDUSTRY CO., LTD. is a specialized manufacturer of mechanical hardware components with four core product lines: Quick Couplings for fluid pipe connections, Impact Sockets for power wrenches, Driver Sockets & Bits for screw fastening, and Torx Tools for precision torque applications. The company also offers custom-made products based on customer specifications. Founded in 1966, the company serves major Japanese industrial clients including IHI, Kubota, Kobelco, Komatsu, Subaru, Daihatsu, Toyota, Nissan, Honda, Mazda, Mitsubishi Heavy Industries, and others in the automotive, construction, and manufacturing sectors.

Differentiator

Problem solved

Functional benefit

Products and services

• Quick Couplings (クイックカップリング) High-quality quick couplings that perform connection, switching, separation, and interception functions for fluid piping systems. Used in factories, construction sites, biotech facilities, marine equipment, and advanced-technology industries to terminate and manage fluid lines.
• Impact Sockets (インパクトソケット) Professional-grade impact sockets designed for pneumatic and electric impact wrenches, used for bolt and nut tightening. Engineered for high durability under continuous industrial use on assembly lines.
• Driver Sockets & Bits (ドライバーソケット&ビット) Professional driver sockets and bits for power tools used in high-volume screw fastening operations. Includes B-30, B-35, B-38, B-40, B-37, B-45, and B-10 type holders with various bit configurations.
• Torx Tools (トルクス工具) Torx-brand tools that provide accurate torque transmission and prevent cam-out (tool slipping/lifting). Widely adopted in automotive and industrial machinery applications. Produced under license from Acument Intellectual Properties, LLC.
• Custom-made Products (受注製作品) Custom manufacturing services for fastening tools and piping components tailored to specific customer requirements. Leverages proprietary加工技術 (加工 technology) and long-standing experience to deliver unique specifications that standard catalogs do not cover.

Named customers18 records

Segments3 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• Asahi Apex Co., Ltd. (アサヒアペックス株式会社)coreStrategic or Co-development Partner · 1 October 2024NAGAHORI INDUSTRY CO., LTD. entered into a business and capital partnership (業務資本提携) with Asahi Apex Co., Ltd. in October 2024. This strategic alliance aims to strengthen both companies' business foundations through mutual cooperation.

Scale indicators2 records

Recent moves5 records

Expansion highlights4 records

Broad incumbents

• Stäubli (Fluid Connectors): Global manufacturer of quick couplings and fluid connectors across industrial, automotive, and aerospace applications. Comparable product category (quick couplings) but with broader geographic and portfolio reach than Nagahori.
• SMC Corporation: Global Japanese leader in pneumatic and fluid-power components including quick couplings, fittings, and air-preparation equipment. Larger incumbent serving overlapping Japanese OEM customers but across a much broader pneumatic portfolio.
• CKD Corporation: Japanese manufacturer of pneumatic, fluid-control, and automation components including couplings and fittings. Broader incumbent in fluid power serving Japanese automotive and factory-automation customers.

Direct peers

• Anex Tool Co., Ltd. Japanese specialist in screw-driving bits, bit holders, and impact sockets. Direct peer in the driver-bit and socket segment used in Japanese automotive and electronics assembly.
• Vessel Co., Inc. Japanese maker of professional-grade screwdrivers, driver bits, and impact sockets for power tools. Direct peer in driver sockets, bits, and impact sockets for Japanese industrial users.
• Ko-ken (Yoshida Metal Industries Co., Ltd.): Japanese specialty maker of high-grade impact sockets, bit sockets, and torque tools. Closely comparable product mix in the impact-socket and driver-bit categories for industrial assembly.
• Tohnichi Mfg. Co., Ltd. Long-established Japanese manufacturer of torque-controlled fastening tools, sockets, and bits serving automotive and heavy-industry assembly lines. Direct peer in the driver-bit, socket, and torque-tool categories.
• Tone Corporation: Japanese manufacturer of impact sockets, hand tools, and torque equipment for automotive and industrial assembly. Direct peer across Nagahori's socket and bit product lines.
• Nitto Kohki Co., Ltd. Japanese maker of quick-coupling fluid connectors and pneumatic tools (e.g., "Quick Joint," "Huck" couplers). Closest direct peer combining couplings and pneumatic fastening tools for Japanese OEM customers.
• Asahi Apex Co., Ltd. Japanese manufacturer of fluid-control fittings and couplings that entered a business and capital partnership with Nagahori in October 2024. Directly comparable in couplings/fittings product category and Japanese industrial customer base.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat4 records

Key risks5 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/nagahori-industry

Compliance1 record

Revenue estimate

Valuation estimate

Number of profiles

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 NAGAHORI INDUSTRY CO., LTD.