Lock Nuts

Lock Nuts

The lock nut is a nut widely used in machinery and other industries. Its working principle is to use the friction between the nut and the bolt for self-locking. However, the reliability of this self-locking will be reduced in dynamic loads. In some important occasions, we will take some anti-loose measures to ensure the reliability of the nut locking

Lock Nut Sizes

•  #00 - 10"
•  M1.2 - M250

Lock Nut Specifications

•  ASME B18.16.3M
•  DIN 980
•  DIN 6923
•  DIN 985
•  DIN 986
•  ISO 7042
•  ISO 19513
•  ISO 4161
•  ISO 10511
•  ISO 7040

All Metal Flexloc Lock Nut	Polymer/Nylon Insert Lock Nut
Can be used at high temperatures Distributes load evenly due to the fact that it is manufactured as one solid piece. Is THE most reliable all-metal self-locking nut. As it is all metal, it is best for high temperature or corrosive applications One of the only all-metal lock nuts that is certified to 15 cycles of prevailing torque – which is military standard.	Overall the most reliable locknut, with the only limitation of application temperature Best for low temp applications, typically less than 350°F Various polymers inserts available (Nylon, Vespel, PVDF, etc.) for higher temp. or corrosive applications. Excellent reusability – can reliably be re-used 15 times Eliminates galling and cold-welding common with exotic alloys

RAYCHIN Lock Nuts are manufactured by the cold heading and hot forming technologies We offer fasteners in both USCS/Imperial and metric sizes.

RAYCHIN’s advanced and comprehensive range of capabilities include engineering, R&D, prototyping, custom manufacturing, precision processing and testing. All RAYCHIN materials are sourced from the most reputable and exacting foundries in the world. We maintain a multi-million-dollar inventory of fasteners in our product warehouse, which enables RAYCHIN to select, package and expedite your order quickly.

We are globally recognized as the emerging leader of high-quality, nickel alloy fasteners and are proud to serve our customers worldwide.

RAYCHIN Lock Nuts meet applicable ASTM, ANSI, ASME, SAE, API, NAS, AN, MS, NACE, ISO, DIN, and KS standards.

A locknut is a special type of nut that resists loosening from vibrations and torque. One of the most common styles is a prevailing torque locknut. This kind of locknut has a prevailing torque feature which deforms elastically, preventing it from freely spinning like a standard nut.

The two most common and reliable forms of prevailing torque locknuts are the flexloc style and the polymer insert lock nut. A flexloc nut is all-metal in composition with a segmented collar that creates six “locking fingers,” that act as a spring. Polymer insert lock nuts are often referred to as nylon insert locknuts, although various high performance polymers can be used for the screw threads to “bite into.” Both flexlock and polymer insert locknuts are available in both hexagonal and 12 point configurations.