Structural Bolts are typically A325 and A490. Unless otherwise specified they are always Type-1 (there is also a type-3). While they do not come with matching nuts and washers, you MUST use a matching nut and washer appropriate for the fastener. The F436 is the specified washer for all structural bolts (unless a load indicating washer is required). The nut is often A563-D (or C or DH) or A194-2H.

Talk to Hardware Everywhere’s knowledgeable customer service team for help choosing the fasteners that match your application. Call us at 1-800-432-8979 or contact us online.