Trusted Structural Washers for Construction, Steel Buildings & Heavy-Duty Applications
Built for Strength. Featuring A325 structural washers, backed by Standards. Delivered Nationwide by BACO Enterprises Inc.
BACO Enterprises Inc. is a trusted name in high-strength fastening solutions and hardware, including being a leading structural washers supplier with galvanized options, for bridge, tunnel, highway, and marine construction. Located in the Bronx, NY, we are one of the Northeast's leading distributors of A325 and A490 structural bolts, heavy hex nuts, with an extensive inventory, and we supply the structural steel washers to match. Whether you're sourcing custom or off-the-shelf components, BACO delivers fast with reliable shipping.
What Are Structural Washers Used For?
Structural washers are hardened, high-strength flat washers used in conjunction with structural bolts and nuts. They ensure uniform load distribution, increased torque retention, and enhanced joint integrity. Commonly found in bridges, steel buildings, infrastructure, and heavy equipment, these washers help prevent bolt embedding and loss of clamping force over time.
Types and Grades of Structural Washers
- A325 Structural Washers: Designed for use with ASTM A325 bolts.
- A490 Structural Washers: Hardened washers that match the strength of A490 bolts.
- F436 Structural Washers: The most common standard for hardened steel structural flat washers.
DIN 6916 Structural Flat Washers: European specification, ideal for metric structural applications.
Benefits of Using Structural Washers
- Distribute load evenly under high torque
- Prevent galling and embedment under load
- Maintain long-term clamping force
- Improve safety and structural reliability
- Reduce potential for bolt loosening under vibration
Material and Finish Options
- F436 hardened carbon steel
- Hot-dip galvanized for corrosion protection and enhanced corrosion resistance
- Mechanically galvanized
- Stainless steel for corrosion-sensitive environments
- Zinc-plated, black oxide, or custom coatings available
Available Sizes and Customization
Standard inner and outer diameters match common bolt sizes. Custom diameters, thicknesses, and tolerances are available on request. Pre-packaged kits are available with matched bolts and nuts.
Industry Compliance & Certifications
Fully compliant with ASTM F436 and AISC specifications. Mill test reports (MTRs), certificates of conformance (COCs), and quality documentation are available. Washers are batch-tested for hardness, thickness, dimensional accuracy.
BACO's Delivery and Distribution Advantage
From our Bronx facility, we provide next-day delivery across New York City, Long Island, Lower NY State, New Jersey, Eastern Pennsylvania, most of Connecticut, and parts of Massachusetts. With deep inventory and rapid custom fabrication, BACO ensures your job site stays supplied without delay.
Custom Fabrication Services
We custom fabricate ASTM A449 threaded studs, TP304 & TP316 stainless steel threaded rods, steel and galvanized anchor bolts, bent bolts, tie rods, and turnbuckle assemblies. All available to pair with structural washer solutions.
Tools & Accessories for Field Installation
We stock Jancy magnetic drills, cutters, electric impact wrenches, and tone shear wrenches (3/4", 7/8", 1") for efficient high-strength bolting. Everything your crew needs to install washers and fasteners on schedule.
Technical Support and Guidance
- Installation and torque spec guidance provided
- Surface prep and field condition support
- Product guides, torque tables, and safety data sheets available
- Dedicated support for engineers, procurement teams, and field crews
Performance in Demanding Environments
- Excellent load retention in high-vibration applications.
- Long-term durability under extreme temperature and weather conditions.
- Lifecycle data and performance insights available.
Contract Pricing and Project Support
Bulk pricing is available for high-volume orders. Contract supply programs support ongoing infrastructure projects. Assistance is provided for inventory planning and washer replacement.
Sustainability and Reusability
Washers are manufactured to minimize waste. Select finishes support recyclability. Ask about trade-in or upgrade programs for aging fastener and bolt inventory.
Stay Updated
We provide ongoing updates and resources to help you stay ahead of changes in standards and washer technologies.
Get the Job Done Right With BACO's Structural Washers
Whether it's A325, A490, or F436 structural washers, bolts, or anchors, we're ready to supply and support your job with fast turnaround and trusted quality. Contact us for a quote, mill certifications, or next-day delivery coordination.
