SAE Flat Washer - Steel, Prevents Loosening & Distributes Load
The SAE flat washer is a simple steel ring sized for inch (SAE) bolts and screws. It sits under a bolt head or nut to spread the load, protect the work surface, and help keep fasteners from loosening under vibration. Steel gives it strength and durability so small fastenings last longer and hold safer.
Usage scenarios:
- Use under bolts on cars, engines, or brackets to reduce loosening from road vibration and prevent bolt pull-through.
- Fit between machine parts (motors, gearboxes, conveyor mounts) and fasteners to distribute pressure and protect softer surfaces.
- Use in home or construction projects—furniture assembly, deck hardware, or metal-to-wood joints—to protect finishes and extend fastener life.
Product features
The sae washer is a steel, flat washer built to SAE dimensions with uniform thickness and precise inner and outer diameters, forming a simple but effective structural ring that fits under fastener heads. It distributes load and increases the bearing surface to improve clamp stability while helping prevent loosening in assemblies. Durable construction and available finishes provide corrosion resistance, broad compatibility with bolts and screws, and cost-effective reliability for general-purpose and heavy-duty fastening needs carried by JM Hardware.
Company profile
Founded on precision manufacturing and material integrity, our company produces SAE steel flat washers engineered to prevent loosening and evenly distribute load in automotive and industrial assemblies. We combine ISO-certified production, high-strength carbon and stainless steel options, and strict dimensional control to ensure consistent fit and performance. High-volume capability, fast lead times, and flexible customization (sizes, finishes, heat treatment) support OEM and aftermarket customers. Robust quality inspection, responsive technical support, and global logistics deliver dependable supply and reduced downtime. Partner with us for durable, cost-effective fastening solutions backed by traceability, certifications, and a commitment to continuous improvement and ongoing innovation.
Enterprise core strength
We are a specialist manufacturer of SAE flat washers in high-grade steel, engineered to prevent loosening and evenly distribute load in automotive, industrial and construction assemblies. Our core strengths are precision stamping, strict material traceability and rigorous quality control (ISO9001), delivering consistent dimensions, hardness and corrosion resistance. Value-driven services include custom sizing, volume production, competitive lead times and global logistics. We partner with OEMs and distributors to reduce assembly failures, extend joint life and lower maintenance costs. Committed to continuous improvement, responsive support and sustainable sourcing, we ensure reliable supply and performance for critical fastening applications.
JM Hardware carries a variety of durable washers intended to fit under the head of a fastener in order to increase the hold of the fastener or to increase the bearing surface.
xarella.huang@jm-fastener.comSince our establishment in 2006, JM has been adhering to the mission of creating maximum value for customers by providing differentiated services, and making a positive contribution to the society.