We are your dependable supplier for industrial fasteners, and I’m proud to bring you a sems screw with square washer built for tough enviroments. This combination delivers secure, vibration-resistant assemblies in machinery, panel mounts, and construction hardware. The SEMS screw locks in place while the square washer spreads load and protects surfaces from gouging or embedment. Made from high-quality steel with stainless or zinc finishes, it withstands weather and chemical exposure without failing. As a High-Quality product, it reduces retightening and saves maintenance time. I can provide bulk quantities with fast lead times and flexible packaging to fit your production runs. Our quality control ensures accurate threads, proper washer flatness, and coating adherence, so you get consistent performance every lot. If you’re looking for a reliable Supplier who understands cost, lead time, and performance, reach out and tell me your required size, finish, and quantity.
SEMS screws paired with square washers provide compact, vibration-resistant fastening for electronics enclosures, automotive housings, and industrial equipment. In the current year, global buyers prioritize reliable fit, compatibility with standard hole patterns, and predictable lead times across diverse climates and supply chains. Material and finish affect durability and cost. Stainless steel (304/316) gives corrosion resistance; zinc-plated carbon steel is budget-friendly; aluminum suits lightweight designs. The square washer distributes load and resists loosening; check inner diameter, washer thickness, thread length, and apply proper torque and lubrication to prevent galling. For procurement success, look for material traceability and RoHS/REACH compliance, ISO-based quality management, and documented first-article inspections. Favor DIN/ISO standard options and clear packaging for global shipments, ensuring reliable logistics for electronics, automotive, and machinery assembly year-round.
| Part ID | Diameter (mm) | Thread Pitch (mm) | Length (mm) | Material | Finish | Head Type | Washer Outer Ø (mm) | Washer Thickness (mm) | Tensile Strength (MPa) | Shear Strength (kN) | Coating |
|---|---|---|---|---|---|---|---|---|---|---|---|
| P-SSW-001 | 4.0 | 0.8 | 12 | Stainless Steel A2 (304) | Passivated | Hex-Head | 9.5 | 0.85 | 520 | 6.0 | Zinc |
| P-SSW-002 | 6.0 | 1.0 | 25 | Stainless Steel A4 (316) | Polished | Pan-Head | 14.0 | 1.05 | 700 | 9.0 | Zn-Ni |
| P-SSW-003 | 3.0 | 0.5 | 8 | Carbon Steel | Plain Zinc | Hex-Head | 8.0 | 0.6 | 470 | 5.2 | Zinc |
| P-SSW-004 | 8.0 | 1.0 | 20 | Stainless Steel A4 (316) | Polished | Socket-Head Cap | 18.0 | 1.15 | 900 | 11.0 | Zn-Ni |
| P-SSW-005 | 5.0 | 0.8 | 16 | Alloy Steel (AISI 4140) | Black Oxide | Button-Head | 12.0 | 1.0 | 800 | 9.3 | Black Oxide |
| P-SSW-006 | 4.5 | 0.6 | 22 | Stainless Steel A2 | Passivated | Pan-Head | 13.0 | 1.0 | 640 | 7.5 | Zinc |
| P-SSW-007 | 6.5 | 1.0 | 30 | Stainless Steel A4 (316) | Passivated | Hex-Head | 16.0 | 1.2 | 750 | 9.2 | Zn-Ni |
| P-SSW-008 | 3.5 | 0.7 | 14 | Alloy Steel (AISI 1045) | Zinc Plated | Flat-Head | 9.0 | 0.9 | 550 | 6.1 | Zinc |
| P-SSW-009 | 7.0 | 1.25 | 28 | Stainless Steel A4 (316) | Satin | Socket-Head Cap | 19.0 | 1.3 | 860 | 10.2 | Zn-Ni |
| P-SSW-010 | 9.0 | 1.0 | 24 | Titanium Alloy Ti-6Al-4V | Passivated | Hex-Head | 21.0 | 1.5 | 950 | 12.0 | None |
| P-SSW-011 | 7.0 | 1.0 | 20 | Alloy Steel | Zinc Plated | Hex-Head | 19.0 | 1.2 | 700 | 9.8 | Zn |
| P-SSW-012 | 4.0 | 0.75 | 18 | Stainless Steel A2 | Polished | Pan-Head | 10.0 | 1.0 | 580 | 6.7 | Zn-Ni |