3M 7000051797 Loop Fastener SJ3401 Black 4in X 50yd

Product Description

The 3M 7000051797 is a non-adhesive nylon loop fastener sold under the SJ3401 product family. It ships as a 50-yard roll, 4 inches wide, and is designed for apparel, fabric, and soft-goods applications requiring a clean, tailored closure. The fastener resists temperatures up to 200 degrees F, making it suitable for garments that go through standard laundry cycles. Engaged thickness ranges from 100 mils to 150 mils. The material is preshrunk for dimensional stability and flatness, reducing the risk of puckering or distortion after repeated use and washing.

This loop fastener is used in textile manufacturing, apparel production, uniform fabrication, and soft accessory assembly wherever a reusable, adjustable closure is needed. It is suitable for both residential and light commercial garment and fabric work. Common install scenarios include waistbands, cuffs, bag closures, and fabric panels where a loop-side mating surface is required alongside a corresponding hook strip. The roll format makes it practical for high-volume cutting and sewing operations as well as bench-level repair work.

Key Features

• Non-adhesive nylon loop construction for sew-on or integrated fabric attachment
• Temperature resistant up to 200 degrees F for standard wash and dry cycles
• Engaged thickness of 100 mils to 150 mils for consistent mating depth
• Preshrunk material ensures dimensional stability and flatness after laundering
• Washable and dry cleanable for low-maintenance, long-service applications
• 50-yard roll length supports both production-scale and shop-level cutting

Compatibility

Designed as a loop-side component for use with a compatible hook fastener strip in standard hook-and-loop closure systems. No specific compatible part numbers were stated in the product data.

Installation Notes

This fastener is typically attached by sewing professionals or textile fabricators using standard industrial or domestic sewing equipment. Secure the loop strip along all four edges and add interior stitching for high-stress closures to prevent delamination during use. Avoid high-heat pressing directly on the nylon loop surface, as sustained contact heat above the rated temperature limit may deform the pile. Follow the garment or fabric substrate manufacturer guidelines for compatible thread type and stitch density.

Technical Specifications

• Width: 4 inches
• Length: 50 yards
• Color: Black
• Material: Nylon loop
• Engaged Thickness: 100 mils to 150 mils
• Temperature Resistance: Up to 200 degrees F
• Unit of Measure: Roll
• Weight: 4.17 pounds
• UPC: 00021200672125

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000051797