3M 7000051817 Flame Resistant Hook Fastener 3/4 in X 50 Yd

Product Description

The 3M 7000051817 is a flame resistant, woven nylon hook reclosable fastener sold in a 3/4-inch-wide by 50-yard roll. Designed without adhesive backing, this hook fastener relies on mechanical engagement with its mating loop counterpart, the SJ3418FR, for a secure reclosable bond. It carries an engaged thickness of 0.15 inches and is rated for continuous use up to 250 degrees F. The SJ3419FR meets F.A.R. 25.853 paragraph (a)(1)(i) 60-second vertical burn test requirements, making it suitable for aerospace, industrial, and protective-garment applications where flame resistance is a regulatory requirement. Licensed trade sewers, garment fabricators, and industrial maintenance personnel are the typical installers.

This fastener is used in applications where a clean, tailored appearance is required alongside reliable reclosable performance. Common uses include flame-resistant workwear, protective garments, aircraft interior panels, and industrial fabric assemblies subject to heat exposure. The no-adhesive design allows the fastener to be sewn directly onto fabric or textile substrates. The material is preshrunk for maximum dimensional stability and flatness, and the finished assembly is both washable and dry cleanable, supporting repeated laundering cycles in demanding service environments.

Key Features

• Flame resistant construction meets F.A.R. 25.853 paragraph (a)(1)(i) 60-second vertical burn test
• Temperature resistant to 250 degrees F for use in high-heat environments
• No adhesive backing — sew-on attachment for permanent, stable bond to fabric
• Preshrunk nylon woven construction ensures dimensional stability and flatness after washing
• Washable and dry cleanable for use on garments and reusable fabric assemblies
• Mates with 3M SJ3418FR loop fastener for a matched flame resistant reclosable system

Compatibility

Designed to mate with the 3M SJ3418FR flame resistant loop fastener as part of a matched reclosable system for flame resistant garments and fabric assemblies.

Installation Notes

This fastener is installed by sewing onto fabric or textile substrates using standard industrial sewing equipment — no heat activation or adhesive bonding is required. Confirm that thread and substrate materials meet the same flame resistance standards required by the application before installation. Follow applicable regulatory requirements, such as F.A.R. 25.853 for aerospace interiors, when specifying this fastener in regulated assemblies. Cut the roll to length using sharp shears to maintain a clean edge and prevent fraying.

Technical Specifications

• Material: Nylon woven hook
• Width: 3/4 inches
• Roll Length: 50 yards
• Engaged Thickness: 0.15 inches
• Maximum Temperature Rating: 250 degrees F
• Flame Resistance Standard: F.A.R. 25.853 paragraph (a)(1)(i) 60-second vertical burn
• Color: Black
• Adhesive: None
• Unit of Measure: Roll
• Weight: 1.1 pounds
• UPC: 00021200368776

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000051817