3M 7100072942 SJ3419FR Hook Fastener Beige 0.625in X 50yd

Product Description

The 3M 7100072942 is a flame resistant, woven nylon hook reclosable fastener sold under the product designation SJ3419FR. It ships as a 0.625-inch-wide by 50-yard roll in beige and carries a no-adhesive backing, making it suitable for direct sewing or attachment to garments and fabrics. Engaged thickness is 0.15 inches. The material is rated to withstand continuous temperatures up to 250 degrees F and meets the F.A.R. 25.853 paragraph (a)(1)(i) 60-second vertical burn test requirement. Installation requires no adhesive transfer, keeping the mating surface clean. This fastener is intended for trade and industrial applications where reclosable flame resistant closure is required.

SJ3419FR is used in aviation interiors, protective garments, industrial curtains, and other flame resistant fabric assemblies where adjustable, reclosable fastening is needed. The hook component mates with 3M SJ3418FR loop tape to form a complete fastener system. The preshrunk nylon construction maintains dimensional stability and flatness through repeated wash and dry-clean cycles, making it practical for wearable and washable applications. It is well suited for garment manufacturers, industrial fabricators, and aerospace interior technicians who require a closure solution that meets FAR burn test standards.

Key Features

• Meets F.A.R. 25.853 paragraph (a)(1)(i) 60-second vertical burn test for flame resistance
• Temperature resistant up to 250 degrees F
• No-adhesive design for sewn-in or direct fabric attachment
• Preshrunk nylon weave ensures dimensional stability and flatness
• Washable and dry cleanable for reusable garment applications
• Mates with 3M SJ3418FR loop fastener for a complete reclosable system

Compatibility

The SJ3419FR hook fastener is designed to mate with 3M SJ3418FR flame resistant loop fastener tape to form a complete reclosable fastener system.

Installation Notes

This product is installed by sewing onto fabric or garment substrates and does not use pressure-sensitive adhesive. Standard industrial sewing equipment is appropriate for attachment. When used in aviation or regulated environments, verify compliance with applicable FAR or customer specifications before installation. Follow fabric manufacturer recommendations for wash temperature and dry-clean solvent compatibility to maintain fastener performance over time.