We are a China-based manufacturer offering inch thread forming screws for plastic that deliver dependable performance in every assembly. Our screws form threads as they go in, giving strong grip in various plastics without pre-tapping. Available in stainless steel and zinc-plated steel, with PH, Torx, or slotted drives, and head styles for auto, electronics, and appliances. Custom lengths, pitch, and coatings are available to fit your design. Tight tolerances and finish quality ensure consistent seating and minimal tool wear. Why customers like us: faster assembly, less material stress, fewer failures. We provide datasheets, installation guidance, RoHS/REACH compliance, ISO quality control. Fast lead times, MOQ friendly, and worldwide shipping. If you're sourcing inch thread forming screws for plastic, you want a reliable partner—we are ready to ship from China with a dedicated technical team to support your project.
In plastics assembly, inch-thread forming screws create strong, clean internal threads without pre-tapping, enabling durable joints in housings and devices. They displace polymer to form friction-formed threads, often outperforming standard self-tappers in PA, PBT, and PC blends. Common inch sizes include #6-32, #8-32, and #4-40, with flat, pan, or countersunk heads and drives such as Phillips, hex, or Torx. For best results, select the pilot hole and material grade carefully and consider lubricants for vibration-prone parts. Global buyers seek steady quality and supply. Look for ISO-certified manufacturers with RoHS/REACH compliance and in-process torque and pull-out checks. A reliable partner offers predictable lead times, flexible packaging, and export-ready documentation. With engineering support and responsive service, you can optimize joint design, shorten assembly time, and ensure consistent performance across markets.
| Item_ID | Diameter_in | Length_in | Thread_TPI | Head_Type | Drive_Type | Material | Coating | Plastic_Type_Recommended | Notes |
|---|---|---|---|---|---|---|---|---|---|
| SFW-001 | 0.125 | 0.375 | 40 | Pan Head | Phillips | Steel | Zinc-Plated | Nylon 6/6 | Self-tapping into nylon; pilot hole recommended, moderate clamp force. |
| SFW-002 | 0.164 | 0.5 | 32 | Flat Head | Torx | Stainless Steel 304 | Zinc-Nickel | ABS | Good corrosion resistance; suitable for visible panels. |
| SFW-003 | 0.190 | 0.75 | 24 | Pan Head | Phillips | Steel | No coating | Polypropylene | Pre-tap recommended in harder plastics; balanced strength. |
| SFW-004 | 0.219 | 1.0 | 20 | Truss Head | Torx | Steel | No coating | Nylon 6/6 GF30 | GF30 reinforced; high shear resistance; avoid over-torque. |
| SFW-005 | 0.250 | 1.25 | 18 | Button Head | Hex Socket | Steel | Zinc-Nickel | Nylon 6/6 | Low-profile head; may require pre-tap in hard plastics. |
| SFW-006 | 0.312 | 2.0 | 16 | Socket Cap Head | Hex | Alloy Steel | Black Oxide | Polycarbonate | High torque capacity; suitable for structural inserts. |
| SFW-007 | 0.375 | 1.5 | 22 | Flat Head | Phillips | Stainless Steel 304 | None | ABS | Flush mounting; requires proper drill clearance. |
| SFW-008 | 0.438 | 2.0 | 18 | Pan Head | Torx | Zinc-Plated Steel | Zinc | Nylon 6/6 GF20 | GF20 reinforced; insert recommended to prevent strip-out. |
| SFW-009 | 0.500 | 1.0 | 16 | Button Head | Hex | Carbon Steel | Black Oxide | Acrylic | Low-profile head; avoid over-tightening in soft plastics. |
| SFW-010 | 0.625 | 1.25 | 16 | Socket Cap Head | Hex | Alloy Steel | Black Oxide | Polycarbonate | High torque capacity; suitable for structural assemblies. |
| SFW-011 | 0.750 | 2.5 | 16 | Round Head | Slotted | Steel | Zinc | Polyethylene | Mild creep resistance; avoid use in very thin walls. |
| SFW-012 | 0.875 | 2.0 | 12 | Pan Head | Torx | Stainless Steel 316 | Passivated | PC | High corrosion resistance; suitable for outdoor polycarbonate. |