Wholesale

Wire Thread Insert Thread Repair Kit

-- Steady & Reliable Manufacturer --

Product Overview

This thread repair kit packages a matched insert, tap and installation tool into a single ready-to-use set, so a workshop or maintenance team does not have to source three separate components before starting a repair. It is offered as a single-size kit for a specific thread, or as a master kit covering the most common sizes used in automotive and general repair work.

We supply this kit to tool distributors, auto parts retailers and industrial MRO buyers who resell under their own packaging, as well as to workshops that use it directly on the shop floor for stripped-thread repairs.

Specifications

Item Detail
Kit Contents Wire thread inserts (qty per size), matching tap, installation tool, tang break tool (optional)
Insert Material 300 series stainless steel, free running or screw lock
Tap Material High speed steel (HSS), ground thread, spiral point or straight flute
Available Sizes M5, M6, M8, M10, M12; UNC #6-32 – 1/2"-13; other sizes on request
Standard Compliance MIL-I-45914, NASM8846, IFI-536
Packaging Type Blister card, plastic storage case, or metal tin box
Master Kit Option Multi-size case covering 5–10 common thread sizes in one box
Private Label Custom card printing, logo and instruction sheet available

Application Fields

  • ✓Automotive repair: spark plug holes, oil pans, water pump housings
  • ✓Small engine and motorcycle maintenance
  • ✓Home and DIY workshop tool boxes
  • ✓Marine engine and outboard motor repair
  • ✓Field service and mobile mechanic tool kits
  • ✓Distributor and retailer private-label tool kits

Key Advantages

  • One purchase covers the whole job, so the buyer does not need to separately source a tap, insert and driver tool.
  • Pre-matched tap and insert sizing removes the fitment guesswork that causes returns and complaints.
  • Retail-ready packaging supports private label and blister-card resale without extra repackaging cost.
  • Complete kits reduce after-sales support load for distributors, since the buyer receives everything needed in one box.
  • Volume pricing on master kits covering multiple sizes gives a lower landed cost per repair than buying single-size sets.

Payment & Shipping

Payment Terms

  • T/T, L/C, PayPal and Trade Assurance accepted
  • 30% deposit, balance before shipment for first orders
  • Sample kits can be sent freight-collect or prepaid by PayPal

Shipping & Packaging

  • Standard kits: 10–15 days; custom card/box printing: 20–25 days
  • Sea freight for bulk retail orders, express courier for sample cards
  • Blister card, color box or metal tin outer packaging available
  • Custom brand printing on card, box and instruction insert for private label orders

A small MOQ is available for a single-size trial kit, with lower per-unit pricing once the order moves to master-kit or private-label quantities.

Frequently Asked Questions

  • Q: What exactly is included inside a standard kit?
  • A: A standard kit contains the wire thread inserts for the stated size, a matching tap, and an installation tool; a tang break tool and thread gauge can be added on request.
  • Q: Can we combine different thread sizes into one custom kit?
  • A: Yes, we can build a master kit combining the sizes you specify, packaged in a single case or blister card.
  • Q: Can our company logo be printed on the packaging?
  • A: Yes, private label printing on the blister card, box and instruction sheet is available, subject to a minimum order quantity.
  • Q: Do the kits come with installation instructions?
  • A: Yes, an instruction sheet covering hole preparation, tapping and insert installation is included with every kit.
  • Q: What is the cost for one sample kit before placing a bulk order?
  • A: Sample kit cost depends on size and packaging; please contact us with the specific size and quantity so we can confirm sample pricing and shipping cost.
Company Profile
Dongtai Jinzhize Metal Products Co., Ltd.
Dongtai Jinzhize Metal Products Co., Ltd.
As Wire Thread Insert Thread Repair Kit Manufacturer and Wire Thread Insert Thread Repair Kit Factory, Dongtai Jinzhize Metal Products Co., Ltd. is a specialized manufacturing facility dedicated to threaded connection products for the automotive and aerospace sectors. We primarily produce Helical Wire Inserts, Self-Tapping Inserts, Key Locking Inserts, Threaded Adapters, Oil Plugs, as well as matching installation taps and tools. Established in 2015, the company operates from a 10,000-square-meter-owned manufacturing plant equipped with hundreds of machine tools and automated production systems. Through years of development, we have built an experienced team of design, development, and production specialists, complemented by a rigorous quality management system and comprehensive after-sales service mechanism. Our products are widely utilized in the automotive industry (including engines and transmissions for both passenger and commercial vehicles), the aerospace industry, and rail vehicle manufacturing. With an annual output value of 153 million RMB in 2024, we possess the capability for a large-scale, stable supply. We are committed to providing customers with highly consistent, traceable products and reliable service support.

Related Products

HISTORY
Evelopment Path
2015
The company was established, identifying threaded connection metal products as its core focus. It concentrated on the R&D and production of thread inserts and supporting tools, laid out related products, deeply cultivated the automotive and aviation fields, and built an initial production and product framework.

2016
Started the construction of its own factory, introduced machine tools and equipment, set up an initial team, completed small-batch trial production of core products, expanded nearby customers, and achieved initial breakthroughs in production capacity.

2017
Optimized product processes, conducted special R&D on products adapted for the automotive field, increased equipment investment, standardized procedures and established quality inspection processes, improved product qualification rates, and accumulated experience in supporting automotive components.

2018
Obtained ISO 9001 quality management system certification, improved the full-process quality control mechanism, enhanced product consistency and reliability, strengthened competitiveness, and expanded high-quality customer resources.

2019
Expanded the factory, added automated equipment to increase production capacity; set up R&D and production teams, promoted the R&D of non-standard customized products, optimized after-sales processes, and built an initial after-sales system.

2020
Expanded the core automotive industry market, initiated cooperation in the aviation and rail vehicle fields; optimized supply chain management to respond to raw material fluctuations and ensure stable production.

2021
Introduced digital production management tools to promote the upgrading of production automation; deepened cooperation with leading automotive component enterprises, optimized product structure and enriched product specifications.

2022
Put a 10,000-square-meter factory into use, equipped with hundreds of automated equipment to achieve large-scale production; optimized the full industrial chain process, improved after-sales services, and provided customized solutions.

2023
Developed thread inserts adapted for new energy vehicles, promoted the precision upgrading of products to meet aviation scenario requirements; initiated the construction of a quality traceability system and increased production capacity and market share.

2024
The output value reached 153 million yuan, with an annual production of 100 million automotive engine thread inserts and 50 million oil plugs; products were widely used in multiple fields, forming a traceable supply system and becoming a high-quality supplier in the segment.

2025
Promoted high-end system certification in the automotive and aviation fields; deepened digital transformation, improved production efficiency, shortened delivery cycles, and strengthened collaborative supply capacity.

2026
Developed special alloy thread inserts and expanded high-end segmented markets; improved green manufacturing, expanded overseas markets, promoted brand upgrading, and transformed into an integrated solution provider.

Corporate Highlights
Documenting the daily life and growth of Jinzhize—from production sites and quality inspections to training sessions and exhibition communications.
Every photo bears witness to our professionalism and collaboration.
  • Dongtai Jinzhize Metal Products Co., Ltd.
  • Dongtai Jinzhize Metal Products Co., Ltd.
  • Dongtai Jinzhize Metal Products Co., Ltd.
  • Dongtai Jinzhize Metal Products Co., Ltd.

Equipment & Tooling

We are equipped with comprehensive production facilities covering forming, machining, wire cutting, grinding, cleaning, assembly, and packaging. We enhance processing consistency through the management of tooling fixtures, cutting tools, and process parameters. Capable of quickly organizing process integration and production scheduling based on diverse product and order requirements, we ensure a stable production rhythm and reliable delivery.

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