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DOWEL-INSERT - Key locking threaded inserts

DOWEL-INSERT - Key locking threaded inserts
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DOWEL-INSERT - Key locking threaded inserts

Product catalog summary
Company Overview
Specialinsert® was founded in 1974 by three sales agents with expertise in the fasteners industry. The company has expanded to include three local branches, two warehouses, two production plants in Italy, an R&D office, and two testing labs. It specializes in advanced fastening solutions for materials such as metal, plastic, wood, stone, and innovative composites.
Product Offerings
Specialinsert® provides a variety of mechanical fixing solutions for different sectors, including inserts for sheet metal, solid parts, plastic, and composite materials. The company is affiliated with UNI, the National Unification Body, and is a member of the Mechanical Orders Commission.
DOWEL-INSERT Features
The DOWEL-INSERT is a metal bush with internal and external threads, featuring pre-assembled locking keys to prevent unscrewing. It is suitable for low-strength materials requiring high mechanical and vibration resistance and can restore deteriorated threads. Available in steel or stainless steel, it comes in mini, light, or reinforced versions, with standard or self-locking internal threads, in metric or inch series.
Advantages of DOWEL-INSERT
  • Anti-unscrewing system with locking keys.
  • High mechanical resistance on soft materials.
  • Prevents thread deterioration from unscrewing, vibration, and stress.
  • Restores deteriorated threads.
  • Easy installation without special tools.
  • Applicable on various materials.
  • Wide variety of bush types and materials.
Installation and Removal Instructions
Installation involves screwing the bush by hand or with a manual tool, then inserting the locking keys by pressing. Removal requires drilling between the locking keys and internal thread, pushing the keys inward, and unscrewing the insert with a screw extractor.
Technical Specifications
The document provides detailed technical specifications for various DOWEL-INSERT series, including dimensions, materials, and installation guidelines. It advises checking the latest technical data sheets on the company's website for updates.
Key Locking Threaded Inserts Overview
This section provides technical specifications and guidelines for key locking threaded inserts, also known as Dowel-Insert, used to prevent unscrewing in materials with threaded seats using locking keys.
Specifications
The document lists various series of inserts, including:
  • Series 90141: Self-locking mini metric
  • Series 91000/91100: Standard thin wall metric
  • Series 91101: Self-locking thin wall metric
  • Series 92000/92100: Standard heavy duty metric
  • Series 92101: Self-locking heavy duty metric
Each series has specific codes, dimensions, and materials, with dimensions expressed in millimeters.
Materials and Finish
The inserts are made from AISI 303 stainless steel with passivation and dry lubrication, while the locking keys are made from AISI 302 stainless steel. Some series also use steel with manganese phosphating.
Installation and Assembly
Inserts can be screwed by hand or with a manual tool, and locking keys are inserted by pressing. The document specifies the number of locking keys required based on the insert size.
Applications
These inserts are suitable for materials prepared with threaded seats, ensuring the insert remains secure and does not unscrew.
Product Features
The document highlights the importance of contacting the Specialinsert® tech/sales office for inserts compliant with MS and NAS specifications.
Disassembly
Instructions for disassembly include hole diameter and depth specifications.
Note
Dimensions provided are indicative and not binding.
Product Overview
This section provides detailed specifications and installation instructions for key locking threaded inserts, known as Dowel-Insert, available in both steel and stainless steel. The inserts are designed for use in materials with pre-threaded seats, with locking keys to prevent unscrewing.
Specifications
The document lists various codes for full tools and corresponding bush codes, with dimensions and threading details provided in both metric and inch series. The dimensions are indicative and not binding.
Product Features
The inserts are available in thin wall and heavy-duty series, with materials including steel with manganese phosphating and AISI 303 stainless steel with passivation. The internal threading follows UNC/UNF standards.
Installation and Disassembly
Installation involves screwing by hand or with a manual tool, with locking keys inserted by pressing. Disassembly instructions include hole diameter and depth specifications.
Services and Processes
Specialinsert® offers technical assistance before, during, and after product delivery, with targeted advice for selecting suitable fasteners. The company conducts various tests, including pull-out, torque, compression, and hardness tests, and provides equipment inspection and statistical process monitoring.
Why Choose Specialinsert®?
Specialinsert® emphasizes research and development, continuous assistance, technological innovation, and high specialization. The company is IATF certified, ensuring quality and safety in the automotive sector.
Contact Information
Headquarters and export department are located in Torino, Italy, with additional branches in Milano and Maerne di Martellago. Contact details and website information are provided for further inquiries.
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Catalog excerpts

DOWEL-INSERT - Key locking threaded inserts-1

DOWEL-INSERT BOCCOLE FILETTATE CON CHIAVETTE DI BLOCCAGGIO KEY LOCKING THREADED INSERTS PRODOTTI ITALIANI DA SEMPRE | ITALIAN MANUFACTURES SINCE EVER

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DOWEL-INSERT - Key locking threaded inserts-2

Specialinsert® è un’azienda presente nel mondo dei sistemi di fissaggio dal 1974. Nasce per iniziativa di tre tecnici commerciali che, grazie alla loro esperienza nel settore dei fastener, decidono di avviarne la commercializzazione in proprio, affiancandole negli anni l’attività di fabbricazione. Specialinsert® was established in 1974 by three sales agents who decided to exploit their experience in the fasteners industry to start up their own retail business. The company later developed and started its own production. Con tre unità locali, due depositi, due siti di produzione italiani, un ufficio...

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DOWEL-INSERT - Key locking threaded inserts-3

BOCCOLE FILETTATE CON CHIAVETTE DI BLOCCAGGIO - KEY LOCKING THREADED INSERTS | DOWEL-INSERT Nel costante impegno di migliorare i propri prodotti, Specialinsert® si riserva il diritto di modificare le caratteristiche tecniche e costruttive senza preavviso. Proprietà e diritti del documento sono riservati. Ne è vietata la riproduzione, anche parziale, e la diffusione a terzi senza autorizzazione. In its constant commitment to improve its products, Specialinsert® reserves the right to change technical and construction specifications without prior notice. Ownership and rights of the document are...

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DOWEL-INSERT - Key locking threaded inserts-4

BOCCOLE FILETTATE CON CHIAVETTE DI BLOCCAGGIO - KEY LOCKING THREADED INSERTS | DOWEL-INSERT DOWEL-INSERT DOWEL-INSERT è una boccola metallica con filettatura interna DOWEL-INSERT is a metal bush with an internal and external ed esterna, corredata di chiavette preassemblate all’esterno thread, equipped with pre-assembled locking keys on the con funzione di antisvitamento. outside with an anti-unscrewing function. Viene applicata su materiali poco resistenti, ove necessitano fissaggi con elevate caratteristiche di resistenza meccanica e vibrazioni, oltre ad essere utilizzata per ripristinare filettature...

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DOWEL-INSERT - Key locking threaded inserts-5

BOCCOLE FILETTATE CON CHIAVETTE DI BLOCCAGGIO - KEY LOCKING THREADED INSERTS | DOWEL-INSERT ^/pecioUn/ert 5 Su materiali predisposti con sedi filettate. Le chiavette, inserite nel materiale ricevente, evitano lo svitamento dell'inserto. On prepared material with threaded seat. The locking keys, inserted into the receiving material, prevent the insert from unscrewing. Avvitamento a mano o con apposita attrezzatura manuale: inserimento chiavette mediante pressione. Screwing by hand or with specific manual tool. Locking keys inserted by pressing.

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DOWEL-INSERT - Key locking threaded inserts-6

BOCCOLE FILETTATE CON CHIAVETTE DI BLOCCAGGIO - KEY LOCKING THREADED INSERTS | DOWEL-INSERT ISTRUZIONI PER IL MONTAGGIO - INSTALLATION GUIDE 1 Forare secondo i riferimenti a tabella Drill according to table references Eseguire uno smusso di imbocco a 82°-100° Perform a chamfer at 82°-100° Eseguire la sede filettata con maschio standard Thread with standard male Posizionare la boccola sul foro Place the bush over the hole Avvitare la boccola a mano o con attrezzo di posa manuale fino a 0,25-0,70 mm sotto il filo della superficie Screw the bush by hand or with hand tool to 0,010-0,030 inches below...

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DOWEL-INSERT - Key locking threaded inserts-7

BOCCOLE FILETTATE CON CHIAVETTE DI BLOCCAGGIO - KEY LOCKING THREADED INSERTS | DOWEL-INSERT ISTRUZIONI PER RIMOZIONE BOCCOLA - BUSH REMOVAL GUIDE Forare alla profondità specificata* il materiale tra le chiavi di bloccaggio e la filettatura interna Drill the material between the locking keys and the internal thread to the specified* depth Spingere le chiavi di bloccaggio verso l’interno e staccarle Push the locking keys inwards and release them Rimuovere l’inserto dal foro svitandolo con un estrattore a vite o attrezzo simile Remove the insert from the hole by unscrewing it with a screw extractor...

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DOWEL-INSERT - Key locking threaded inserts-8

BOCCOLE FILETTATE CON CHIAVETTE DI BLOCCAGGIO - KEY LOCKING THREADED INSERTS | DOWEL-INSERT SERIES METRICA MINI STANDARD STANDARD MINI METRIC Su materiali predisposti con sedi filettate. Le chiavette, inserite nel materiale ricevente, evitano lo svitamento dell'inserto On prepared material with threaded seat. The locking keys, inserted into the receiving material, prevent the insert from unscrewing Avvitamento a mano o con apposita attrezzatura manuale. Inserimento chiavetta mediante pressione Screwing by hand or with specific manual tool. Locking keys inserted by pressing CARATTERISTICHE PRODOTTO...

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DOWEL-INSERT - Key locking threaded inserts-9

BOCCOLE FILETTATE CON CHIAVETTE DI BLOCCAGGIO - KEY LOCKING THREADED INSERTS | DOWEL-INSERT ^/pecioUn/ert 9 SERIES METRICA MINI FRENATA SELF-LOCKING MINI METRIC Su materiali predisposti con sedi filettate. Le chiavette, inserite nel materiale ricevente, evitano lo svitamento dell'inserto On prepared material with threaded seat. The locking keys, inserted into the receiving material, prevent the insert from unscrewing Avvitamento a mano o con apposita attrezzatura manuale. Inserimento chiavetta mediante pressione Screwing by hand or with specific manual tool. Locking keys inserted by pressing...

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DOWEL-INSERT - Key locking threaded inserts-10

fl/pcciolin/crt BOCCOLE FILETTATE CON CHIAVETTE DI BLOCCAGGIO - KEY LOCKING THREADED INSERTS | DOWEL-INSERT METRICA LEGGERA STANDARD STANDARD THIN WALL METRIC Su materiali predisposti con sedi filettate. Le chiavette, inserite nel materiale ricevente, evitano lo svitamento dell'inserto On prepared material with threaded seat. The locking keys, inserted into the receiving material, prevent the insert from unscrewing Avvitamento a mano o con apposita attrezzatura manuale. Inserimento chiavetta mediante pressione Screwing by hand or with specific manual tool. Locking keys inserted by pressing Le...

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DOWEL-INSERT - Key locking threaded inserts-11

BOCCOLE FILETTATE CON CHIAVETTE DI BLOCCAGGIO - KEY LOCKING THREADED INSERTS | DOWEL-INSERT ^/pecioUn/ert 11 METRICA LEGGERA FRENATA SELF-LOCKING THIN WALL METRIC Su materiali predisposti con sedi filettate. Le chiavette, inserite nel materiale ricevente, evitano lo svitamento dell'inserto On prepared material with threaded seat. The locking keys, inserted into the receiving material, prevent the insert from unscrewing Avvitamento a mano o con apposita attrezzatura manuale. Inserimento chiavetta mediante pressione Screwing by hand or with specific manual tool. Locking keys inserted by pressing...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.