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. 521-967
BrandRS PRO
$77.70
1 Bag of 100
Bag(s)
M10 Nylon Insert - A2 304 - Plain
RS Stock No. 665-5628
BrandRS PRO
$122.52
1 Bag of 10
Bag(s)
M12 Aerotight - A4 316 19mm Plain
RS Stock No. 122-4373
BrandRS PRO
$15.17
1 Bag of 100
Bag(s)
M8 Nylon Insert Steel - - Zinc Plated
RS Stock No. 665-5612
BrandRS PRO
$107.73
1 Bag of 25
Bag(s)
M6 Aerotight - A4 316 10mm Plain
RS Stock No. 521-973
BrandRS PRO
$74.46
1 Bag of 100
Bag(s)
M12 Nylon Insert - A2 304 - Plain
RS Stock No. 530-393
BrandRS PRO
$16.73
1 Bag of 100
Bag(s)
M8 Nylon Insert Steel - - Bright Zinc Plated
RS Stock No. 483-0574
BrandRS PRO
$31.92
1 Bag of 100
Bag(s)
2BA Full Brass - - Nickel Plated
RS Stock No. 797-6377
BrandRS PRO
$82.15
1 Bag of 50
Bag(s)
M16 Nylon Insert - A4 316 - Plain
RS Stock No. 122-4375
BrandRS PRO
$24.52
1 Bag of 100
Bag(s)
M12 Nylon Insert Steel - - Zinc Plated
RS Stock No. 530-400
BrandRS PRO
$26.56
1 Bag of 100
Bag(s)
M10 Nylon Insert Steel - - Bright Zinc Plated
RS Stock No. 275-692
BrandRS PRO
$57.54
1 Bag of 25
Bag(s)
M16 Nylon Insert - A2 304 - Plain
RS Stock No. 665-5615
BrandRS PRO
$59.13
1 Bag of 10
Bag(s)
M8 Aerotight - A4 316 13mm Plain
RS Stock No. 665-5606
BrandRS PRO
$76.52
1 Bag of 25
Bag(s)
M3 Aerotight - A4 316 5.5mm Plain
RS Stock No. 275-608
BrandRS PRO
$44.15
1 Bag of 100
Bag(s)
M5 Nylon Insert Steel - - Bright Zinc Plated
RS Stock No. 275-620
BrandRS PRO
$36.05
1 Bag of 50
Bag(s)
M8 Nylon Insert Steel - - Bright Zinc Plated
RS Stock No. 275-636
BrandRS PRO
$13.52
1 Bag of 10
Bag(s)
M10 Nylon Insert Steel - - Bright Zinc Plated
RS Stock No. 797-6386
BrandRS PRO
$88.32
1 Bag of 50
Bag(s)
M20 Nylon Insert - A4 316 - Plain
RS Stock No. 122-4374
BrandRS PRO
$19.25
1 Bag of 100
Bag(s)
M10 Nylon Insert Steel - - Zinc Plated
RS Stock No. 483-0580
BrandRS PRO
$15.67
1 Bag of 250
Bag(s)
4BA Full Brass - - Nickel Plated
RS Stock No. 122-4377
BrandRS PRO
$41.58
1 Bag of 50
Bag(s)
M20 Nylon Insert Steel - - Zinc Plated
Related Products
BZP Steel - Metric Thread Nylon Insert Self-locking ...
Description:
BZP Steel - Metric Thread Nylon Insert Self-locking 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 ...
A2 Stainless Steel - Metric Self-locking nuts with ...
Description:
A2 Stainless Steel - Metric Self-locking nuts with glass-filled nylon inserts These are designed to remain secure despite conditions of severe vibration. Features and Benefits To DIN985A2 grade 18//8 stainless steel (Type 304 S15) Applications Unlike conventional fasteners, lock nuts, ...
BZP Steel - Metric Thread Self-locking nuts with ...
Description:
BZP Steel - Metric Thread Self-locking nuts with glass-filled nylon inserts These are designed to remain secure despite conditions of severe vibration. Features and Benefits Grade 8 steel, bright zinc plated Applications Unlike conventional fasteners, lock nuts, sometimes known as ...
RS Pro Nylon Insert Nuts Zinc Plated The ...
Description:
RS Pro Nylon Insert Nuts Zinc Plated 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 ...