Thank you for your question.
Unfortunately, the manufacturer does not make that information available to the public because it is proprietary information. You may call Acco directly at 800-541-0094 for additional information.
File fasteners ensure that your important document lie flat in their folders. On Time Supplies carries a wide variety of paper fasteners, including ACCO Premium Paper Fasteners and Universal® Self-Adhesive Paper Fasteners, as well as plastic, clip folder fasteners and more. You save money when you order file fasteners in bulk, while our fast shipping gets your fasteners to you in as little as a day. If you need more information on file fastener styles, any other office supplies featured at On Time Supplies, or on GSA pricing, call us toll free at 1-866-501-6055. We're happy to answer any supply questions.