Penn Engineering > Aluminium versions of SI Threaded inserts for plastics

USA, Pennsylvania, Danboro – Introduced lead free and lightweight alternatives to brass counterparts


A contribute to the overall lighter assemblies

New aluminum versions of SI® brand threaded inserts from PennEngineering® introduce lead-free and lightweight alternatives to brass counterparts and offer ideal solutions to eliminate potential environmental and recycling issues while contributing to overall lighter assemblies. The aluminum option – approximately 70% lighter than brass equivalents – can be specified for all types of SI inserts and augments the standard line of brass and corrosion-resistant lead-free stainless steel products. All provide durable and reusable metal threads in plastics to accept mating hardware and subsequently allow for access to an assembly whenever required.



Included ultrasonic / heat staking inserts for installation ultrasonically

Applications for SI threaded inserts include plastic enclosures or components for the consumer electronics, medical, automotive, aerospace, transportation, and recreational industries, among many others.

Whether manufactured from aluminum, stainless steel, or brass, the SI product line for plastic assemblies includes ultrasonic / heat staking inserts for installation ultrasonically or with a thermal press, molded-in types installed during the molding process, and press-in types installed by pressing the insert into a pre-molded or drilled hole.

All install permanently and, unlike fixed and unyielding joining methods (such as adhesives or rivets), the inserts ultimately offer the capability to disassemble and re-attach plastic components easily and quickly without damaging the threads, compromising attachment integrity, or otherwise adversely impacting an assembly.


Engineered in a variety of designs and lenghts

SI threaded inserts have been engineered in a variety of designs and lengths – including micro fastener versions with threads as small as M1 – and can be supplied in unified or metric thread sizes. Detailed specifications, fastener drawings and models, and performance data (Bulletin SI) for these fasteners can be accessed at

Founded in 1942 and headquartered in Danboro, PA, USA, PennEngineering is a global leader in the fastening industry with technical and manufacturing facilities in North America, Europe, and Asia supported by a global engineering-focused sales force and a worldwide network of authorized distributors.



More info about:



Previous Phoenix Contact > Robust RJ45 socket modules for industrial applications
Next Pilz > PNOZmulti 2, up to 12 safe expansion modules can be connected

You might also like

Sedi Main Header 2 Main Header 3 Italia Text 2 Text 3 Germania Text 2 Text 3 Repubblica Ceca Text 2 Text 3 Text 1 Text 2 Text 3 Text

transfluid > Focusing on tube forming technology and automation

  Speakers and an audience from the industry exchange ideas at transfluid’s Innovation Days 11 As the year draws to a close, mechanical engineering firm transfluid and attendees at the

Nord Drivesystems > Industrial gear units with extruder flanges

      Extruder flanges optimized for heavy duty operation As an all-new supplement to the modular industrial gear range, NORD DRIVESYSTEMS now provides extruder flanges optimized for heavy duty

Oest > Innovative wood product for the construction industry

    Application unit for CLT Mats-production in USA. Innovative wood product for the construction industry Especially in North America the use of CLT Mats for the temporary fixation of unstable

Sick > Intelligent sensors pave the way for the industry of the future

    Intelligent sensors pave the way for the industry of the future – Success for SICK at the Hannover Messe 2016 At the Hannover Messe (HM) trade fair, SICK

Gleason > Acquisition of KISSsoft AG, specialist in design software for gears and power transmission systems

        Integration of more solutions for gear manufacturing Gleason Corporation announced that it has acquired KISSsoft AG, located in Bubikon, Switzerland. KISSsoft is a leader in the

> Electrohydrostatic Pump Unit (EPU) by Moog: sizes 19, 32 and 80 cc

  Moog Extends its Electrohydrostatic Pump Unit. The product family now includes the size 80 cc to help machine builders address a wider range of applications.   The technical working principles

Mongoose, machine to build aerospace vehicles in Blue Origin of Jeff Bezos

Mongoose, machine to build aerospace vehicles is the largest innovative fiber placement machine in the world, made by Ingersoll Machine Tools Inc, the American company that belongs to the Camozzi

Hengstler > Acuro AX73 absolute rotary encoders ATEX rated

    ACURO® AX73 completes Hengstler’s range of ATEX-rated absolute rotary encoders The Hengstler ACURO® AX73 is a class-leading optical encoder offering attributes such as ease of installation, high precision