{"product_id":"brass-inserts-m2-m3-m4-m5-185pcs","title":"Brass Inserts M2 M3 M4 M5 185pcs","description":"\u003ch2\u003eDESCRIPTION\u003c\/h2\u003e\n\u003cp\u003eThis 185-piece brass heat-set insert kit adds strong, reusable metric threads to 3D-printed and moulded plastic parts, covering five sizes from M2 to M5. Each knurled insert is pressed in with a soldering iron or heat-set tip, melting into the surrounding plastic and locking firmly in place as it cools, making it a workshop essential for makers, school D\u0026amp;T labs and prototyping teams across Singapore.\u003c\/p\u003e\n\u003cp\u003eDouble-band diagonal knurling resists both pull-out and rotation under screw torque, while the smooth lead-in collar at the base self-centres each insert in its pilot hole for straight, flush installation.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eFEATURES\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e185 inserts across five metric sizes: M2 (50pcs), M2.5 (50pcs), M3 (50pcs), M4 (20pcs) and M5 (15pcs)\u003c\/li\u003e\n\u003cli\u003eSolid brass construction for fast, even heat transfer during installation\u003c\/li\u003e\n\u003cli\u003eDouble-band diagonal knurling grips the plastic to resist pull-out and rotation\u003c\/li\u003e\n\u003cli\u003eUnknurled lead-in collar guides each insert into the hole for straight alignment\u003c\/li\u003e\n\u003cli\u003eCreates durable metal threads that withstand repeated screw assembly and disassembly\u003c\/li\u003e\n\u003cli\u003eRecommended pilot hole diameters printed on the lid for quick reference\u003c\/li\u003e\n\u003cli\u003eSupplied in a clear compartment box with each size sorted separately\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eAPPLICATIONS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAdding reusable threaded mounting points to 3D-printed enclosures and cases\u003c\/li\u003e\n\u003cli\u003eAssembling printed robot chassis, brackets and camera mounts\u003c\/li\u003e\n\u003cli\u003eSecuring PCBs and development boards to printed bosses and standoffs\u003c\/li\u003e\n\u003cli\u003eRepairing stripped screw holes in plastic housings\u003c\/li\u003e\n\u003cli\u003eRapid prototyping and small-batch production of plastic parts\u003c\/li\u003e\n\u003cli\u003eSchool D\u0026amp;T, STEM and maker-space projects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eTECHNICAL DETAILS\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eMaterial: Brass\u003c\/li\u003e\n\u003cli\u003eType: Knurled heat-set threaded insert\u003c\/li\u003e\n\u003cli\u003eThread Sizes: M2, M2.5, M3, M4, M5\u003c\/li\u003e\n\u003cli\u003eTotal Quantity: 185pcs\u003c\/li\u003e\n\u003cli\u003eInstallation: Soldering iron or heat-set tip\u003c\/li\u003e\n\u003cli\u003eCompatible Materials: PLA, PETG, ABS, ASA and other thermoplastics\u003c\/li\u003e\n\u003cli\u003eM2 (50pcs): Outer Diameter 3.2mm, Length 3mm, Lead-in Diameter 2.8mm, Recommended Hole 3.0mm\u003c\/li\u003e\n\u003cli\u003eM2.5 (50pcs): Outer Diameter 3.5mm, Length 4mm, Lead-in Diameter 3.0mm, Recommended Hole 3.3mm\u003c\/li\u003e\n\u003cli\u003eM3 (50pcs): Outer Diameter 4.2mm, Length 5mm, Lead-in Diameter 3.8mm, Recommended Hole 4.0mm\u003c\/li\u003e\n\u003cli\u003eM4 (20pcs): Outer Diameter 5.5mm, Length 6mm, Lead-in Diameter 5.0mm, Recommended Hole 5.2mm\u003c\/li\u003e\n\u003cli\u003eM5 (15pcs): Outer Diameter 7.0mm, Length 8mm, Lead-in Diameter 6.0mm, Recommended Hole 6.4mm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eSHIPPING LIST\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e50x M2 Brass Heat-Set Insert\u003c\/li\u003e\n\u003cli\u003e50x M2.5 Brass Heat-Set Insert\u003c\/li\u003e\n\u003cli\u003e50x M3 Brass Heat-Set Insert\u003c\/li\u003e\n\u003cli\u003e20x M4 Brass Heat-Set Insert\u003c\/li\u003e\n\u003cli\u003e15x M5 Brass Heat-Set Insert\u003c\/li\u003e\n\u003cli\u003e1x Compartment Storage Box\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"TBO","offers":[{"title":"Default Title","offer_id":54539214881081,"sku":"COM-SPA-020","price":16.0,"currency_code":"SGD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0746\/5369\/6313\/files\/Brass_Inserts_M2_M3_M4_M5_185pcs_1.jpg?v=1790259186","url":"https:\/\/kuriosity.sg\/products\/brass-inserts-m2-m3-m4-m5-185pcs","provider":"Kuriosity","version":"1.0","type":"link"}