Hobson 1"-14 UNF Nylon Insert Lock Nut, Zinc, Box of 25

This is one Hobson UNF nylon insert lock nut, size 1"-14; zinc finish. A nylon insert lock nut carries a nylon ring in one end; the bolt or stud threads through the ring as the nut is tightened. The finish is zinc.

Each item is supplied as a box of 25.

Where this product is used

• Vibration-prone assemblies such as motors, pumps, conveyors and guards, where a plain nut can work loose
• Replacing worn locknuts on bolts of the same thread form and diameter
• Assemblies that stay at normal workshop or outdoor temperatures (not for high-temperature use)
• Dry, indoor and sheltered locations such as workshops, enclosed machinery and interior fit-out
• Medium-strength machinery and equipment work that needs more than Grade 2

Features

• 1 size: 1"-14
• UNF thread
• Zinc finish
• Grade 5
• Supplied as a box of 25
• Zinc plated finish, for indoor and sheltered locations
• Grade 5 medium-carbon steel, quenched and tempered

Key specifications

Choosing the right option

Choose the thread form first: the nut and its bolt or stud must match in thread form, diameter and pitch. Sizes are nominal diameters in inches; compare the threads per inch with your bolt.

Zinc plating suits workshops, enclosed machinery and interior fit-out. Because the electroplated coating is thin, it is generally unsuitable for outdoor exposure and does not meet treated-timber requirements (not suitable for treated pine). For weather-exposed work, look at a hot dip galvanised version instead; within about 1 km of the sea, 316 stainless is generally the safer choice.

The nylon ring in this nut resists loosening from vibration. Do not use it in high-temperature locations, and expect the grip to reduce with repeated use. In the SAE convention Grade 5 means medium-carbon, quenched and tempered steel. UNF is the fine inch thread: the finer pitch gives more threads per inch and a finer adjustment. It only mates with UNF nuts and tapped holes of the same diameter.

Related nuts: Hobson M30 Nyloc Insert Lock Nut, Class 8, Zinc, Box of 25, Hobson M30 Nyloc Insert Lock Nut, Class 8, Zinc, 10 Pieces and Hobson Metric Nylon Insert Lock Nut, Zinc Yellow Passivate, M5 to M20.