Detail & Specs
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Belleville Washer Small O.D. - A2 Stainless NFE 25-511 Form S
Ribbed / "Rip Lock" Pattern
Belleville washers have a concave shape to maintain compressed tension. The Rip-Lock pattern on the top surface enhances the locking force and further prevents against loosening due to vibration or pressure. Also known as serrated conical, coned-disc, cupped spring lock washer
Belleville washers can be used in tandem, one at the nut end and one at the bolt head end of the fastener connection. These washers can also be parallel stacked in multiples for increase loads.
Specification: NFE 25-511, "S"
"S" Small Form (Reduced Outer Diameter)
Less common than ISO or DIN standard washers, AFNOR (French Association Française de Normalisation) washers may be required for specialized applications that have specific dimensional requirements.
Material: A2 Stainless
A2 Stainless washers are commonly used on metal construction projects: residential and commercial exteriors, solar installation, decking, terraces, fences, exterior stairs, porch furniture, recreational / playground equipment, pergolas, facades, railings, architectural facades and finish work.
For any application involving marine (salt water), use A4 / 316 Stainless Steel material, available by-the-box as a special order.
