This is a complete set of stamped metal brackets, standoffs, and alignment guides for AI server chassis. You get ±0.02 mm positional tolerance, 0.05 mm flatness runout, and a 12-day production lead t
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This is a complete set of stamped metal brackets, standoffs, and alignment guides for AI server chassis. You get ±0.02 mm positional tolerance, 0.05 mm flatness runout, and a 12-day production lead t
This is a complete set of stamped metal brackets, standoffs, and alignment guides for AI server chassis. You get ±0.02 mm positional tolerance, 0.05 mm flatness runout, and a 12-day production lead time. Hardness reaches 40–45 HRC on spring steel versions, so your rack slides and GPU mounts will not deform under repeated insertion.
Every Ai Server Chassis Mounting Parts Collection part is stamped on a 250-ton high-speed press. Progressive dies hold strip width to ±0.01 mm. That means every bracket is identical — no tool-path drift, no edge burr variation. CNC milling would take 6 minutes per part; stamping takes 0.8 seconds. For a 1,000-unit server rack order, you save 85 hours of machine time. See our CNC cutting tool selection guide to understand why die maintenance beats tool replacement for volume.
We set die clearance at 8% of material thickness for 1.5 mm SECC steel. Result: burr height stays under 0.03 mm. That is critical for AI chassis because sharp edges cut through cable sleeving and damage your fingers during maintenance. Our secondary vibratory finishing removes micro-burrs down to Ra 0.8 µm. You will not need to deburr manually.
We stock four materials for this collection. SPCC cold-rolled steel for general brackets. SECC galvanized for corrosion resistance near power supplies. SUS304 stainless for GPU support rails that see 70°C continuous heat. SK5 spring steel for latch clips — we heat treat to 45 HRC and temper at 300°C to restore toughness. No surface coating is needed on SK5 because the oxide layer from tempering prevents rust.
We use a Rockwell tester on three samples per 500 pieces. Flatness is checked on a granite surface plate with a 0.05 mm feeler gauge. If any sample exceeds 0.05 mm runout, the whole lot is rejected and re-pressed. This is not a random audit — it is a gate. You get a stamped flatness report with every shipment. For tighter control, refer to our CNC machining tolerances guide — it covers the difference between die tolerances and machined tolerances.
Our collection includes M2.5 and M3 standoffs with a hexagonal base. We form the hex and the internal thread in the same progressive die. No welding means no heat-affected zone, no distortion, and no post-weld cleaning. Pull-out torque is 3.5 N·m minimum on M3. This is how we keep your AI server motherboard mounting points rigid for 10,000+ insertion cycles.
Parts are packed in VCI (vapor corrosion inhibitor) paper, then in telescopic cartons. Each carton holds 200 pieces with dividers to prevent scratching. For sea freight to the US or Europe, we add a silica gel pouch per 1,000 pieces. You will receive parts with Ra 0.8 µm surface finish, not rust spots, even after 30 days in transit.
We run a 100% dimensional check on critical holes using an optical comparator at 20× magnification. For complex geometries, a CMM measures 12 points per part. We record every measurement in a PDF report with your PO number. If a dimension is off by more than 0.02 mm, we re-press before packing. No exceptions.
| Specification | Value |
|---|---|
| Material options | SPCC, SECC, SUS304, SK5 spring steel |
| Thickness range | 0.5 mm – 3.0 mm |
| Hardness (SK5 only) | 40 – 45 HRC |
| Positional tolerance | ±0.02 mm |
| Flatness runout | 0.05 mm max |
| Surface finish | Ra 0.8 µm (vibratory finished) |
| Burr height | 0.03 mm max |
| Thread pull-out torque (M3) | 3.5 N·m min |
| Standard lead time | 12 days after drawing approval |
| MOQ | No MOQ — order 10 pieces or 10,000 |
No MOQ. Order one sample kit for prototyping or 10,000 pieces for production — the same die, the same tolerance, the same price break after 500 pieces.
Yes. We modify dies at a fixed cost of $150 per change — you get a new part number with your logo and hole layout within 5 days.
Every batch, regardless of size, goes through the same optical comparator and CMM inspection; we send you the report before shipping.
Standard 12 days, but for a single prototype die, we can deliver in 7 days via DHL express.
Get a firm quote within 12 hours. Send your drawing to sc@bquq.com or WhatsApp +86 13713157787. We will confirm material, tolerance, and price — no negotiation games. Precision manufacturing, made in China, with no MOQ.
| 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 |
