Use Custom Fasteners as the parent route when the project needs a threaded insert alongside custom screws, bolts, washers or another fastening element. It keeps the sourcing decision focused on the complete joint rather than a single catalog part.
A threaded insert is more than a small internally threaded part. It creates an interface between a parent component, an installation method and a mating fastener. Custom projects often need a particular thread, knurl, groove, flange, length, blind end, material or surface condition. The correct sourcing decision depends on how the insert is installed and retained in the actual parent part, then how the finished joint is assembled and serviced.
For a meaningful custom threaded inserts quote, supply the insert drawing and the parent-part information at the same time. The parent material, boss or hole geometry, installation route, mating fastener and service requirement determine what must be reviewed. This avoids choosing a correct internal thread with an external retention form that does not suit the component.
| RFQ input | What to provide | Decision it supports |
| Parent component | Material/grade, molded or machined condition, boss or hole geometry, wall/support condition and protected surfaces. | Retention geometry and installation route. |
| Insert geometry | Internal thread, OD, length, knurl/groove/external feature, flange, lead-in, blind or through condition. | Functional insert drawing and inspection priorities. |
| Mating joint | Screw or bolt detail, engagement, assembly access, service cycles and load/retention requirements where available. | Thread and seat relationship in the finished assembly. |
| Supply programme | Current revision, quantity, sample stage, required evidence, packing and repeat-demand context. | Quote scope and controlled repeat-supply reference. |
Brass insert concepts for drawing-specified threads and external retention features in plastic, wood, composite or other parent-material applications.
Inserts with straight, diamond, helical or drawing-specified external features and a flange or seating detail where required.
Insert configurations specified for thermal, ultrasonic or mold-in installation where the parent part and process determine the retention design.
Press In and Self Tapping Inserts
Insert options reviewed for press, threaded or self-cutting installation when the parent material and feature geometry support that route.
These are drawing-review checkpoints, not universal performance or capability claims. The selected insert style, material, installation route and acceptance requirement must be confirmed for the actual parent part and joint.
| Characteristic | Project reference | Confirmation needed |
| Internal thread | The insert may use a specified metric, inch or drawing-defined internal thread. | Mating screw/bolt, engagement and required service condition. |
| External retention | The outside may use knurl, groove, flange, external thread or a drawing-specific locking feature. | Parent material, hole/boss geometry and installation route. |
| Installation condition | The insert may be molded in, thermally installed, ultrasonically installed, pressed or threaded. | Tool direction, support, access, process sequence and surface protection. |
| Material and finish | Brass or another specified material/finish may be selected around corrosion, wear and assembly needs. | Drawing requirement, environment, contact surfaces and receiving condition. |
Use Custom Fasteners as the parent route when the project needs a threaded insert alongside custom screws, bolts, washers or another fastening element. It keeps the sourcing decision focused on the complete joint rather than a single catalog part.
Use the Brass Threaded Inserts route when a brass insert is being considered for a parent plastic component. The resin, boss geometry and specified heat, ultrasonic, press or mold-in method should lead the discussion, not a generic insert photograph.
Use CNC Threaded Components when the required part is fundamentally a machined threaded metal component rather than an insert retained inside a parent material. This keeps the buyer from treating two different joint solutions as interchangeable.
Use Custom Screws when drive, thread and installed screw details shape the insert requirement. Use Metal Stamping when a formed sheet component, panel or related mounting feature must be reviewed with the fastening interface.
For brass threaded inserts, brass is commonly considered where a drawing specifies a metal threaded interface in a softer parent material. The correct material and finish still depend on the parent material, environment, wear, corrosion, installation method and mating screw. Other drawing-specified materials or finishes can be reviewed where the application requires them.
For threaded inserts for plastic, identify the actual resin and whether the insert is intended for heat, ultrasonic, press, mold-in or another defined installation method. The boss, hole, support, direction and assembly sequence need review before a retention expectation is written into the quote.
The release discussion should follow the joint: internal thread, external retention form, length, flange or seating condition, material/finish, insertion orientation, mating screw relationship, kit contents and packing. Provide the current drawing revision and receiving evidence required.
Use a threaded insert when the parent material, service requirement or assembly design needs a reusable metal thread that a direct tapped hole may not provide. The suitable option depends on parent material, feature geometry, installation method, mating fastener and required service condition. Review the full joint before selecting a route.
Provide the insert drawing, parent-part drawing or CAD, material/grade, hole or boss geometry, installation method, mating screw or bolt, thread, finish, quantity, current revision, quality evidence and packing requirement. These inputs let Hardware SP assess the insert as part of the intended assembly rather than a loose component.
Start with the exact resin, boss or hole geometry, installation method, screw engagement and service condition. Heat-set, ultrasonic, press, mold-in and other insert approaches use different retention logic. A drawing review should decide whether the selected outer form suits the parent material and installation process.
A brass threaded insert can be reviewed for a drawing-specified internal thread, OD, length, knurl, groove, flange, lead-in or finish. The requested geometry must still be evaluated with the parent material and installation method, because an outside feature that looks suitable may not retain correctly in the actual component.
Changes to the parent material, boss or hole geometry, internal thread, outside retention feature, flange, length, installation method, mating fastener, finish or packing can change the released requirement. Send a clearly identified revision before a repeat order or change so the joint remains under one controlled reference.
Hardware SP can assess B2B threaded insert projects when you provide the insert, parent-part and mating-fastener requirements. We review the drawing package, installation context and supplied condition before quotation. The final route and acceptance requirements depend on the actual material, geometry and programme, not a generic insert type.