I’m stocking the u drive screw #4 x 1/4 for serious projects and fast-moving jobs. For B2B buyers like you, I offer steady supply, quick shipping, and a straightforward Pricelist. The u drive screw #4 x 1/4 provides reliable bite and a clean drive, with a durable finish to perform in most shop environments. I can supply in bulk, with consistent quality across batches and efficient fulfillment from our warehouse. If you’re after cheap options that don’t dull performance, you’ll appreciate the value here. My Pricelist includes volume discounts and lead times to help you plan production accurately. We tailor quotes for OEMs, installers, and wholesalers, with flexible terms and reliable delivery. Reach out and I’ll share the latest stock status and a competitive quote today.
Global buyers sourcing a u drive screw #4 x 1/4 face several key decisions. These small fasteners influence assembly reliability, with requirements for precise thread tolerance, a secure drive fit, and consistent head geometry suitable for electronics enclosures and control panels. Common choices include stainless steel or zinc-plated steel, with finishes such as passivation or coating to resist corrosion. Clear specifications and samples help prevent production delays. When evaluating a supplier, ask about lead times, minimum order quantities, and what QC steps are used—dimensional checks, torque tests, and lot traceability. Request RoHS/REACH compliance certificates if your markets require them, and confirm packaging that minimizes damage during transit. If you need customization—lengths, head styles, or plating—ensure the partner can scale and maintain consistent quality across volumes for global distribution.
| Part_ID | Description | Material | Finish | Head | Drive | Thread | Length_in | Diameter_mm | Standard | Tolerance | Application |
|---|---|---|---|---|---|---|---|---|---|---|---|
| U-DS-0401 | Flat Head Machine Screw | Alloy steel | Flat | Phillips | #4-40 UNC | 0.25 | 2.84 | ANSI B18.6.3 | ±0.002 in | General chassis assembly | |
| U-DS-0402 | Pan Head Machine Screw | Stainless steel 304 | Pan | Hex Socket | #4-40 UNC | 0.25 | 2.84 | ASME B18.6.3 | ±0.002 in | Electronics enclosure | |
| U-DS-0403 | Truss Head Sheet Metal Screw | Stainless steel 304 | Truss | Slotted | #4-40 UNC | 0.25 | 2.84 | ANSI B18.2.1 | ±0.003 in | Sheet metal assembly | |
| U-DS-0404 | Button Head Socket Cap Screw | Carbon steel | Button | Hex Socket | #4-40 UNC | 0.25 | 2.84 | ANSI B18.3 | ±0.003 in | Automotive electronics | |
| U-DS-0405 | Round Head Phillips Screw | Brass | Round | Phillips | #4-40 UNC | 0.25 | 2.84 | ANSI B18.6.1 | ±0.003 in | Panel mounting | |
| U-DS-0406 | Flat Head Machine Screw | Stainless steel 316 | Flat | Slotted | #4-40 UNC | 0.25 | 2.84 | ASME B18.6.3 | ±0.002 in | Equipment cabinet assembly | |
| U-DS-0407 | Socket Head Cap Screw | Alloy steel | Socket Cap | Hex Socket | #4-40 UNC | 0.25 | 2.84 | ASME B18.3 | ±0.002 in | Electrical assembly | |
| U-DS-0408 | Countersunk Screw | Phosphor bronze | Countersunk | Slotted | #4-40 UNC | 0.25 | 2.84 | ANSI B18.6.1 | ±0.003 in | PCB hardware |