From the moment I started sourcing, I focused on square washer screw quality that meets tough industrial demands. As a trusted supplier to Wholesale buyers and Manufacturers, I offer square washer screws in a variety of materials, finishes, and sizes to suit your applications. My inventory includes corrosion-resistant stainless steel, carbon steel, and zinc-plated options with square washer heads to distribute load and prevent loosening. I prioritize tight tolerances, consistent thread engagement, and fast lead times for bulk orders. Whether you need standard stock or customized packaging, I can accommodate MOQ requirements and provide competitive pricing. I partner with reputable manufacturers to ensure traceability and compliance with industry standards. By choosing my service, you get reliable product performance, checked first-hand, supported by responsive technical support and efficient logistics. If you’re planning a wholesale purchase or a long-term manufacturing project, I’ll deliver square washer screws that meet your spec, on time and within budget.
For the current year, forward-looking buyers prioritize square washer screws that deliver precision and reliability. The square washer expands the bearing surface, improves load distribution, and helps prevent loosening in electronics enclosures and industrial equipment. When sourcing, seek consistent washer geometry, compatible head styles, and washers that stay aligned in automated assembly. Global procurement should balance material, finish, and compliance. Stainless steel offers corrosion resistance; plated carbon steels reduce cost. Check RoHS/REACH, request hardness and salt-spray data, and insist on batch traceability. Verify lead times, automation-ready packaging, and supplier certifications (ISO 9001, IATF 16949) to reduce regional risk. A proactive approach favors manufacturers with scalable capacity and clear testing data.
| SKU | Size (Thread x Length) | Material | Finish | Head Type (with Integrated Square Washer) | Drive Type | Washer Size (mm) | Grade / Standard | Tensile Strength (MPa) | Application Notes | |
|---|---|---|---|---|---|---|---|---|---|---|
| SWK-01 | M4 x 16 | Stainless Steel A2-70 | Passivated | Pan Head with Integrated Square Washer | Hex Socket | 14 x 14 | ISO 3506 Grade 304 | 515 | Light-duty machinery assembly | |
| SWK-02 | M5 x 20 | Stainless Steel A4-80 (316) | Polished | Pan Head with Integrated Square Washer | Hex Socket | 16 x 16 | ISO 3506 Grade 316 | 520 | Marine equipment assembly | |
| SWK-03 | M6 x 25 | Alloy Steel | Zinc Plated | Hex Head with Integrated Square Washer | Hex Socket | 18 x 18 | DIN 931 | DIN 931 / 8.8 | 830 | Automotive chassis mounting |
| SWK-04 | M8 x 40 | Alloy Steel | Black Oxide | Socket Cap with Integrated Square Washer | Hex Socket | 20 x 20 | ISO 898-1 Grade 10.9 | 10.9 | 1040 | Heavy equipment frame |
| SWK-05 | M4 x 12 | Carbon Steel | Zinc Plated | Pan Head with Integrated Square Washer | Torx T20 | 14 x 14 | Grade 4.8 | 480 | Electrical enclosure assembly | |
| SWK-06 | M5 x 30 | Alloy Steel | Zinc Plated | Pan Head with Integrated Square Washer | Hex Socket | 18 x 18 | ISO 898-1 Grade 8.8 | 800 | Industrial machinery | |
| SWK-07 | M6 x 18 | Stainless Steel A2 (304) | Passivated | Pan Head with Integrated Square Washer | Hex Socket | 16 x 16 | ISO 3506 Grade 304 | 520 | Lab equipment fixture | |
| SWK-08 | M8 x 16 | Stainless Steel A4 (316) | Polished | Pan Head with Integrated Square Washer | Hex Socket | 22 x 22 | ISO 3506 Grade 316 | 520 | Water treatment equipment | |
| SWK-09 | M3 x 10 | Carbon Steel | Zinc Plated | Pan Head with Integrated Square Washer | Torx | 12 x 12 | DIN 933 / 4.6 | 350 | Cabinetry assembly | |
| SWK-10 | M10 x 45 | Alloy Steel | Zinc Plated | Hex Head with Integrated Square Washer | Hex Socket | 24 x 24 | ISO 898-1 Grade 10.9 | 1040 | Heavy-duty equipment frame |