This is the Stamped Metal Grommets Eyelets Ferrules Collection from BQUQ, a 20-year precision manufacturing factory in Dongguan, China. We produce these stamped components with a dimensional tolerance
This is the Stamped Metal Grommets Eyelets Ferrules Collection from BQUQ, a 20-year precision manufacturing factory in Dongguan, China. We produce these stamped components with a dimensional tolerance of ±0.02 mm, a hardness range of 20–45 HRC, and a standard lead time of 7 days for prototypes. Every part is made on high-speed CNC stamping presses, and we ship worldwide with no MOQ.
Most small stamping shops use older mechanical presses with high runout. We run 20-ton to 160-ton high-speed precision presses with a spindle runout under 0.005 mm. This means your grommets and ferrules have consistent wall thickness and a clean, burr-free edge — no secondary deburring needed. We hold a flatness of 0.05 mm on parts up to 100 mm diameter, and we can punch holes as small as 0.8 mm without tool deflection.
We stock over 15 coil and strip materials for this collection. For electrical eyelets, we use brass C2600, phosphor bronze C5210, and beryllium copper C17200 with hardness up to 45 HRC after heat treatment. For structural ferrules, we use stainless steel 301, 304, and 430, cold-rolled steel SPCC, and aluminum 5052. If you need a specific finish, we offer zinc plating, nickel plating, and passivation with a salt spray rating of 72 hours minimum.
Burr height is the #1 complaint with stamped grommets. Our tooling uses a custom clearance of 5–8% of material thickness, which keeps burr height below 0.03 mm. We also use a laser-optical burr measurement system on every production lot. For eyelets with a wall thickness of 0.15 mm, we guarantee no tearing or rollover at the edge. If you need a rolled rim or a flared end, we do that in the same die — no extra cost.
We do not ship blind. Every batch passes through our in-house QC lab, which includes a Zeiss CMM, an optical profile projector, and a surface roughness tester. We check outer diameter, inner diameter, concentricity, and wall thickness on a sampling plan of AQL 0.65. For critical parts, we can provide a full dimensional report with a CPK value above 1.33. Surface finish is held to Ra 0.8 µm on the OD and Ra 0.4 µm on the sealing face.
We build our own dies in-house, so tooling costs are 30% lower than outsourced dies. A simple grommet die costs $800–$1,500 and lasts 1–2 million strokes before maintenance. For the Stamped Metal Grommets Eyelets Ferrules Collection, we have over 40 existing tool sets that you can use for free — just change the material and we run it. If you need a custom shape, we deliver a new die in 15 days, and we offer free die storage for repeat orders.
Send us a 2D drawing or a 3D STEP file. We quote within 12 hours, and we make prototype samples in 3 days using our in-house tool room. For production, we run 24/7 shifts with automated feed and stacking. Our typical lead time is 7 days for 100,000 pieces, and 15 days for 1 million pieces. We also offer a soft-tooling option for low-volume runs of 1,000–10,000 pieces, so you never pay for hard tooling during the design validation phase.
| Specification | Value | Notes |
|---|---|---|
| Materials | Brass C2600, Phosphor Bronze C5210, Beryllium Copper C17200, Stainless Steel 301/304/430, SPCC, Aluminum 5052 | All available in coil or strip |
| Outer Diameter Range | 1.5 mm – 100 mm | Larger sizes available on request |
| Wall Thickness | 0.15 mm – 3.0 mm | Thin wall without tearing |
| Hardness (After Heat Treatment) | 20 – 45 HRC | Depends on material and temper |
| Dimensional Tolerance | ±0.02 mm | On OD, ID, and length |
| Concentricity (Runout) | ≤0.005 mm | Measured on precision mandrel |
| Surface Finish (Ra) | 0.4 µm – 0.8 µm | As-stamped, no secondary machining |
| Burr Height | ≤0.03 mm | Measured on all cut edges |
| Lead Time (Prototype) | 3 days | From drawing approval |
| Lead Time (Production) | 7 – 15 days | For 100k – 1M pieces |
| MOQ | No MOQ | Start with 100 pieces for testing |
These three parts look similar but serve different functions. A grommet reinforces a hole in sheet metal or fabric — we make it with a rolled rim for a smooth edge. An eyelet is a tubular part used for lacing or electrical termination — we make it with a flared or curled end. A ferrule is a compression or crimp fitting — we make it with a hexagonal or knurled outer profile for grip. If you are unsure which one fits your assembly, send us your application and our engineers will recommend a design within one working day. For a deeper understanding of how these parts interact with cutting tools, read our CNC cutting tool selection guide. To confirm your dimensional callouts, review our CNC machining tolerances guide.
Bare metal is not always enough. We offer five standard finishes for this collection: bright nickel plating (2–5 µm), zinc plating with blue or yellow passivation (5–8 µm), tin plating for solderability (3–6 µm), black oxide for a matte look, and electropolishing for stainless steel. Salt spray resistance ranges from 48 hours for zinc to 500 hours for electropolished 304. All platings are RoHS and REACH compliant, and we can provide a material certificate with every lot.
We pack in anti-static bags, then in corrugated cartons with EPE foam inserts to prevent deformation. For high-volume orders, we use bulk packing with 10,000 pieces per box. We ship from Shenzhen port via DHL, FedEx, or sea freight. For urgent orders, we can air-ship samples within 24 hours to any major city in the US, EU, or Southeast Asia. Our export documentation includes a commercial invoice, packing list, and certificate of origin — all handled in-house.
There is no MOQ — you can order 100 pieces for a prototype test or 1 million pieces for production, and the per-unit price adjusts accordingly.
Yes, we can modify any standard tool or build a new die for your custom shape, material, or finish, with a 15-day tooling lead time and free die storage.
We use in-process SPC with automated laser measurement every 500 pieces, plus a final AQL 0.65 inspection on a CMM and optical projector before shipment.
Prototype samples are ready in 3 days, production orders ship in 7–15 days depending on quantity, and all quotes are returned within 12 hours.
Send us your drawing for a firm quote within 12 hours. Email sc@bquq.com or WhatsApp +86 13713157787. We will confirm material, tolerance, and price — no obligations.
| Parameter | Capability |
|---|---|
| Materials | SPCC, SGCC, SUS301/304/316, brass, copper, beryllium copper, phosphor bronze |
| Process | Progressive die stamping, fine blanking, deep drawing, bending, tapping |
| Tolerance | ±0.01mm standard, ±0.005mm on request |
| Surface | Zinc plating, nickel, tin, gold, powder coating, passivation, anodizing |
| Die Size | Up to 1200 x 800 mm, 16-250 ton presses |
| Thickness | 0.05 - 6.0 mm sheet metal, wire 0.1 - 8.0 mm |
| Prototype | 7-15 days tooling, no MOQ on samples |
| Inspection | Full report per batch, CMM and optical measurement |
