Lock Nuts – Secure Fastening Solutions Built to Last
Here at BEP Ltd, we offer a selection of lock nuts that achieve this goal as well, eradicating the risks of vibration vibrations which can cause problems to equipment driven by torques and external fiords. For automotive, industrial or structural application lock nuts, our range that includes nyloc nuts and all-metal NutLocks provides the strength engineers expect.
What Makes Lock Nuts Different?
Locking nuts, also referred to as locknuts, prevailing torque nuts or self-locking nuts, are designed to remain securely fastened under conditions that would cause a normal nut to loosen.
They usually operate by requiring prevailing torque during installation that generally comes in the form of deformed threads, inserts or serrated surfaces which bite into the mating bolt.
Lock Nut Types & Use Cases
|
Type |
How It Locks |
Best For |
|
Nylon-insert (Nyloc) |
Nylon ring creates friction with threads |
General use; up to ~250°F |
|
Distorted-thread |
Deformed threads press against bolt threads |
High-temperature, reusable |
|
Serrated Flange |
Angled ridges bite into surface |
Prevents rotation; no washer needed |
|
Security Locknut |
Steel ring applies clamping friction and load isolation |
Heavy vibration and rail applications |
|
Split-beam / Stover |
Slotted top sections expand to grip threads |
High-temp, reusable up to ~1400°F |
Why Choose BEP’s Lock Nut Range?
- Expertly Selected Inventory – We stock high-quality prevailing torque, Nyloc, all-metal, and security lock nuts.
- Trusted in High-Stress Environments – Ideal for automotive, aerospace, oil & gas, and heavy machinery applications (where failure isn’t an option)
- UK-Based Distribution – Fast dispatch, excellent customer service, and available for bulk or OEM orders.
- Companion Support – Not sure which lock nut you need? Our technical team is ready to guide you through material, size, and environment matchups.
Frequently Asked Questions (FAQs)
Q1. What is a lock nut, and how is it different from a regular nut?
A lock nut resists loosening under vibration, using features like elastic deformation or surface interference, unlike standard nuts that rely on external aids like thread-lock fluid
Q2. When should I choose a Nyloc nut?
Use for general applications, especially involving moderate vibration and temperatures up to ~250°F. Not recommended for extreme heat or repeated re-use
Q3. What are all-metal lock nuts used for?
They're ideal for high-temperature, harsh environments where reusable and low-failure lock nuts are needed—from automotive to industrial across wide temperature ranges
Q4. Can security locknuts be reused?
Yes. Their resilient steel lock ring design ensures consistent locking torque over repeated cycles—perfect for systems where disassembly and reassembly are routine
Lock Nuts
Lock Nuts – Secure Fastening Solutions Built to Last
Here at BEP Ltd, we offer a selection of lock nuts that achieve this goal as well, eradicating the risks of vibration vibrations which can cause problems to equipment driven by torques and external fiords. For automotive, industrial or structural application lock nuts, our range that includes nyloc nuts and all-metal NutLocks provides the strength engineers expect.
What Makes Lock Nuts Different?
Locking nuts, also referred to as locknuts, prevailing torque nuts or self-locking nuts, are designed to remain securely fastened under conditions that would cause a normal nut to loosen.
They usually operate by requiring prevailing torque during installation that generally comes in the form of deformed threads, inserts or serrated surfaces which bite into the mating bolt.
Lock Nut Types & Use Cases
|
Type |
How It Locks |
Best For |
|
Nylon-insert (Nyloc) |
Nylon ring creates friction with threads |
General use; up to ~250°F |
|
Distorted-thread |
Deformed threads press against bolt threads |
High-temperature, reusable |
|
Serrated Flange |
Angled ridges bite into surface |
Prevents rotation; no washer needed |
|
Security Locknut |
Steel ring applies clamping friction and load isolation |
Heavy vibration and rail applications |
|
Split-beam / Stover |
Slotted top sections expand to grip threads |
High-temp, reusable up to ~1400°F |
Why Choose BEP’s Lock Nut Range?
- Expertly Selected Inventory – We stock high-quality prevailing torque, Nyloc, all-metal, and security lock nuts.
- Trusted in High-Stress Environments – Ideal for automotive, aerospace, oil & gas, and heavy machinery applications (where failure isn’t an option)
- UK-Based Distribution – Fast dispatch, excellent customer service, and available for bulk or OEM orders.
- Companion Support – Not sure which lock nut you need? Our technical team is ready to guide you through material, size, and environment matchups.
Frequently Asked Questions (FAQs)
Q1. What is a lock nut, and how is it different from a regular nut?
A lock nut resists loosening under vibration, using features like elastic deformation or surface interference, unlike standard nuts that rely on external aids like thread-lock fluid
Q2. When should I choose a Nyloc nut?
Use for general applications, especially involving moderate vibration and temperatures up to ~250°F. Not recommended for extreme heat or repeated re-use
Q3. What are all-metal lock nuts used for?
They're ideal for high-temperature, harsh environments where reusable and low-failure lock nuts are needed—from automotive to industrial across wide temperature ranges
Q4. Can security locknuts be reused?
Yes. Their resilient steel lock ring design ensures consistent locking torque over repeated cycles—perfect for systems where disassembly and reassembly are routine
TMFS7 SKF Axial Lock Nut Socket
Original price
$113.00
-
Original price
$113.00
Original price
$113.00
$113.00
-
$113.00
Current price
$113.00
SKF axial lock nut sockets require less space around the bearing arrangement than hook spanners, and fit nuts from the KM, KMK and KMF series
Original price
$113.00
-
Original price
$113.00
Original price
$113.00
$113.00
-
$113.00
Current price
$113.00
TMFS11 SKF Axial Lock Nut Socket
Original price
$169.00
-
Original price
$169.00
Original price
$169.00
$169.00
-
$169.00
Current price
$169.00
SKF axial lock nut sockets require less space around the bearing arrangement than hook spanners, and fit nuts from the KM, KMK and KMF series
Original price
$169.00
-
Original price
$169.00
Original price
$169.00
$169.00
-
$169.00
Current price
$169.00
TMFS8 SKF Axial Lock Nut Socket
Original price
$113.00
-
Original price
$113.00
Original price
$113.00
$113.00
-
$113.00
Current price
$113.00
SKF axial lock nut sockets require less space around the bearing arrangement than hook spanners, and fit nuts from the KM, KMK and KMF series
Original price
$113.00
-
Original price
$113.00
Original price
$113.00
$113.00
-
$113.00
Current price
$113.00
TMFS12 SKF Axial Lock Nut Socket
Original price
$180.00
-
Original price
$180.00
Original price
$180.00
$180.00
-
$180.00
Current price
$180.00
SKF axial lock nut sockets require less space around the bearing arrangement than hook spanners, and fit nuts from the KM, KMK and KMF series
Original price
$180.00
-
Original price
$180.00
Original price
$180.00
$180.00
-
$180.00
Current price
$180.00
TMFS10 SKF Axial Lock Nut Socket
Original price
$158.00
-
Original price
$158.00
Original price
$158.00
$158.00
-
$158.00
Current price
$158.00
SKF axial lock nut sockets require less space around the bearing arrangement than hook spanners, and fit nuts from the KM, KMK and KMF series
Original price
$158.00
-
Original price
$158.00
Original price
$158.00
$158.00
-
$158.00
Current price
$158.00
TMFS9 SKF Axial Lock Nut Socket
Original price
$158.00
-
Original price
$158.00
Original price
$158.00
$158.00
-
$158.00
Current price
$158.00
SKF axial lock nut sockets require less space around the bearing arrangement than hook spanners, and fit nuts from the KM, KMK and KMF series
Original price
$158.00
-
Original price
$158.00
Original price
$158.00
$158.00
-
$158.00
Current price
$158.00
TMFS13 SKF Axial Lock Nut Socket
Original price
$191.00
-
Original price
$191.00
Original price
$191.00
$191.00
-
$191.00
Current price
$191.00
SKF axial lock nut sockets require less space around the bearing arrangement than hook spanners, and fit nuts from the KM, KMK and KMF series
Original price
$191.00
-
Original price
$191.00
Original price
$191.00
$191.00
-
$191.00
Current price
$191.00
TMFS6 SKF Axial Lock Nut Socket
Original price
$102.00
-
Original price
$102.00
Original price
$102.00
$102.00
-
$102.00
Current price
$102.00
SKF axial lock nut sockets require less space around the bearing arrangement than hook spanners, and fit nuts from the KM, KMK and KMF series
Original price
$102.00
-
Original price
$102.00
Original price
$102.00
$102.00
-
$102.00
Current price
$102.00
TMFS14 SKF Axial Lock Nut Socket
Original price
$315.00
-
Original price
$315.00
Original price
$315.00
$315.00
-
$315.00
Current price
$315.00
SKF axial lock nut sockets require less space around the bearing arrangement than hook spanners, and fit nuts from the KM, KMK and KMF series
Original price
$315.00
-
Original price
$315.00
Original price
$315.00
$315.00
-
$315.00
Current price
$315.00
TMFS15 SKF Axial Lock Nut Socket
Original price
$337.00
-
Original price
$337.00
Original price
$337.00
$337.00
-
$337.00
Current price
$337.00
SKF axial lock nut sockets require less space around the bearing arrangement than hook spanners, and fit nuts from the KM, KMK and KMF series
Original price
$337.00
-
Original price
$337.00
Original price
$337.00
$337.00
-
$337.00
Current price
$337.00
TMFS3 SKF Axial Lock Nut Socket
Original price
$108.00
-
Original price
$108.00
Original price
$108.00
$108.00
-
$108.00
Current price
$108.00
SKF axial lock nut sockets require less space around the bearing arrangement than hook spanners, and fit nuts from the KM, KMK and KMF series.
Original price
$108.00
-
Original price
$108.00
Original price
$108.00
$108.00
-
$108.00
Current price
$108.00
TMFS2 SKF Axial Lock Nut Socket
Original price
$79.00
-
Original price
$79.00
Original price
$79.00
$79.00
-
$79.00
Current price
$79.00
SKF axial lock nut sockets require less space around the bearing arrangement than hook spanners, and fit nuts from the KM, KMK and KMF series
Original price
$79.00
-
Original price
$79.00
Original price
$79.00
$79.00
-
$79.00
Current price
$79.00
TMFS5 SKF Axial Lock Nut Socket
Original price
$90.00
-
Original price
$90.00
Original price
$90.00
$90.00
-
$90.00
Current price
$90.00
SKF axial lock nut sockets require less space around the bearing arrangement than hook spanners, and fit nuts from the KM, KMK and KMF series
Original price
$90.00
-
Original price
$90.00
Original price
$90.00
$90.00
-
$90.00
Current price
$90.00
HN12-13 SKF Hook Type Lock Nut Spanner 80 90mm
Original price
$38.00
-
Original price
$38.00
Original price
$38.00
$38.00
-
$38.00
Current price
$38.00
This HN12-13 SKF hook spanner is designed for use with SKF KM nuts as well as any other KM nuts conforming to the DIN981 standard.
Original price
$38.00
-
Original price
$38.00
Original price
$38.00
$38.00
-
$38.00
Current price
$38.00
TMFS18 SKF Axial Lock Nut Socket
Original price
$427.00
-
Original price
$427.00
Original price
$427.00
$427.00
-
$427.00
Current price
$427.00
SKF axial lock nut sockets require less space around the bearing arrangement than hook spanners, and fit nuts from the KM, KMK and KMF series
Original price
$427.00
-
Original price
$427.00
Original price
$427.00
$427.00
-
$427.00
Current price
$427.00
TMFS20 SKF Axial Lock Nut Socket
Original price
$551.00
-
Original price
$551.00
Original price
$551.00
$551.00
-
$551.00
Current price
$551.00
SKF axial lock nut sockets require less space around the bearing arrangement than hook spanners, and fit nuts from the KM, KMK and KMF series
Original price
$551.00
-
Original price
$551.00
Original price
$551.00
$551.00
-
$551.00
Current price
$551.00
TMFS19 SKF Axial Lock Nut Socket
Original price
$472.00
-
Original price
$472.00
Original price
$472.00
$472.00
-
$472.00
Current price
$472.00
SKF axial lock nut sockets require less space around the bearing arrangement than hook spanners, and fit nuts from the KM, KMK and KMF series
Original price
$472.00
-
Original price
$472.00
Original price
$472.00
$472.00
-
$472.00
Current price
$472.00
TMFS17 SKF Axial Lock Nut Socket
Original price
$371.00
-
Original price
$371.00
Original price
$371.00
$371.00
-
$371.00
Current price
$371.00
SKF axial lock nut sockets require less space around the bearing arrangement than hook spanners, and fit nuts from the KM, KMK and KMF series
Original price
$371.00
-
Original price
$371.00
Original price
$371.00
$371.00
-
$371.00
Current price
$371.00
TMFS4 SKF Axial Lock Nut Socket
Original price
$90.00
-
Original price
$90.00
Original price
$90.00
$90.00
-
$90.00
Current price
$90.00
SKF axial lock nut sockets require less space around the bearing arrangement than hook spanners, and fit nuts from the KM, KMK and KMF series
Original price
$90.00
-
Original price
$90.00
Original price
$90.00
$90.00
-
$90.00
Current price
$90.00
KMT13 87x95x28mm SKF Lock Nut
Original price
$125.00
-
Original price
$125.00
Original price
$125.00
$125.00
-
$125.00
Current price
$125.00
KMT13 87x95x28mm SKF Lock Nut Please Note: If selected brand is not available a suitable alternative will be supplied in Timken, NSK, FAG or NKE
Original price
$125.00
-
Original price
$125.00
Original price
$125.00
$125.00
-
$125.00
Current price
$125.00
KMFE9 53x65x13mm SKF Lock Nut
Original price
$42.00
-
Original price
$42.00
Original price
$42.00
$42.00
-
$42.00
Current price
$42.00
KMFE9 53x65x13mm SKF Lock Nut Please Note: If selected brand is not available a suitable alternative will be supplied in Timken, NSK, FAG or NKE
Original price
$42.00
-
Original price
$42.00
Original price
$42.00
$42.00
-
$42.00
Current price
$42.00
KM5 32x38x7mm SKF Lock Nut
Original price
$10.00
-
Original price
$10.00
Original price
$10.00
$10.00
-
$10.00
Current price
$10.00
KM5 32x38x7mm SKF Lock Nut Please Note: If selected brand is not available a suitable alternative will be supplied in Timken, NSK, FAG or NKE
Original price
$10.00
-
Original price
$10.00
Original price
$10.00
$10.00
-
$10.00
Current price
$10.00
KM6 38x45x7mm SKF Lock Nut
Original price
$10.00
-
Original price
$10.00
Original price
$10.00
$10.00
-
$10.00
Current price
$10.00
KM6 38x45x7mm SKF Lock Nut Please Note: If selected brand is not available a suitable alternative will be supplied in Timken, NSK, FAG or NKE
Original price
$10.00
-
Original price
$10.00
Original price
$10.00
$10.00
-
$10.00
Current price
$10.00
KM2 21x25x5mm SKF Lock Nut
Original price
$6.00
-
Original price
$6.00
Original price
$6.00
$6.00
-
$6.00
Current price
$6.00
KM2 21x25x5mm SKF Lock Nut Please Note: If selected brand is not available a suitable alternative will be supplied in Timken, NSK, FAG or NKE
Original price
$6.00
-
Original price
$6.00
Original price
$6.00
$6.00
-
$6.00
Current price
$6.00