Locking Nuts

A lock nut is a type of nut that resists loosening when properly threaded onto a bolt. Nut-and-bolt fasteners are extremely common in industry and home applications. Lock nuts fall into one of 2 groups
● Prevailing Torque Lock Nuts - Prevailing torque is the amount of torque needed to run a nut down a thread on nuts that are designed to resist self-loosening under vibratory forces.
● Surface bearing lock nuts – surface bearing - a free spinning nut that requires tightening against a bearing surface in order for the locking mechanism to function.

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Description Price Thread Size Type Material Stainless Steel Type Width Finish
RS Stock No. 521-945
BrandRS PRO
MYR75.84
1 Bag of 100
Bag(s)
M6 Nylon Insert - A2 304 - Plain
RS Stock No. 767-854
BrandRS PRO
MYR188.59
1 Bag of 100
Bag(s)
M10 Nylon Insert - A4 316 - Plain
RS Stock No. 521-939
BrandRS PRO
MYR57.70
1 Bag of 100
Bag(s)
M5 Nylon Insert - A2 304 - Plain
RS Stock No. 524-281
BrandRS PRO
MYR4.83
1 Bag of 100
Bag(s)
M3 Nylon Insert Steel - - Bright Zinc Plated
RS Stock No. 767-848
BrandRS PRO
MYR156.49
1 Bag of 100
Bag(s)
M8 Nylon Insert - A4 316 - Plain
RS Stock No. 524-326
BrandRS PRO
MYR42.31
1 Bag of 100
Bag(s)
M6 Nylon Insert Steel - - Bright Zinc Plated
RS Stock No. 248-4539
BrandRS PRO
MYR196.06
1 Bag of 50
Bag(s)
M12 Nylon Insert - A4 316 - Plain
RS Stock No. 521-973
BrandRS PRO
MYR332.81
1 Bag of 100
Bag(s)
M12 Nylon Insert - A2 304 - Plain
RS Stock No. 521-923
BrandRS PRO
MYR48.89
1 Bag of 100
Bag(s)
M4 Nylon Insert - A2 304 - Plain
RS Stock No. 767-832
BrandRS PRO
MYR93.14
1 Bag of 100
Bag(s)
M6 Nylon Insert - A4 316 - Plain
RS Stock No. 524-310
BrandRS PRO
MYR30.02
1 Bag of 100
Bag(s)
M5 Nylon Insert Steel - - Bright Zinc Plated
RS Stock No. 665-5612
BrandRS PRO
MYR335.57
1 Bag of 25
Bag(s)
M6 Aerotight - A4 316 10mm Plain
RS Stock No. 483-0568
BrandRS PRO
MYR207.70
1 Bag of 100
Bag(s)
0BA Full Brass - - Nickel Plated
RS Stock No. 275-608
BrandRS PRO
MYR135.48
1 Bag of 100
Bag(s)
M5 Nylon Insert Steel - - Bright Zinc Plated
RS Stock No. 767-810
BrandRS PRO
MYR68.44
1 Bag of 100
Bag(s)
M4 Nylon Insert - A4 316 - Plain
RS Stock No. 521-917
BrandRS PRO
MYR43.41
1 Bag of 100
Bag(s)
M3 Nylon Insert - A2 304 - Plain
RS Stock No. 122-4372
BrandRS PRO
MYR36.93
1 Bag of 100
Bag(s)
M6 Nylon Insert Steel - - Zinc Plated
RS Stock No. 665-5628
BrandRS PRO
MYR385.42
1 Bag of 10
Bag(s)
M12 Aerotight - A4 316 19mm Plain
RS Stock No. 275-620
BrandRS PRO
MYR110.62
1 Bag of 50
Bag(s)
M8 Nylon Insert Steel - - Bright Zinc Plated
RS Stock No. 521-967
BrandRS PRO
MYR238.42
1 Bag of 100
Bag(s)
M10 Nylon Insert - A2 304 - Plain
Related Products
From the trusted RS PRO brand, these lock ...
Description:
From the trusted RS PRO brand, these lock nuts contain a nylon insert for safe and secure fastening. They are designed to remain secure despite conditions of severe vibration. They have a large flat integrated washer which allows for load ...
Self-locking nuts with glass-filled nylon inserts. These are ...
Description:
Self-locking nuts with glass-filled nylon inserts. These are designed to remain secure despite conditions of severe vibration. To DIN985A2 grade 18//8 stainless steel (Type 304 S15).
Self-locking nuts with glass-filled nylon inserts. These are ...
Description:
Self-locking nuts with glass-filled nylon inserts. These are designed to remain secure despite conditions of severe vibration. Grade 8 steel, bright zinc plated.
The RS Pro zinc plated locking nuts have ...
Description:
The RS Pro zinc plated locking nuts have a nylon insert. The nuts have been designed to remain secure despite severe vibration. Having a nylon insert makes the nut better at sealing the bolt thread against leaking water, oil and ...