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

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

Ordenar por

Ver como

TMFS7 SKF Axial Lock Nut Socket

£82.23 - £82.23

£82.23

£82.23 - £82.23

£82.23

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

£82.23 - £82.23

£82.23

£82.23 - £82.23

£82.23

TMFS11 SKF Axial Lock Nut Socket

£123.36 - £123.36

£123.36

£123.36 - £123.36

£123.36

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

£123.36 - £123.36

£123.36

£123.36 - £123.36

£123.36

TMFS8 SKF Axial Lock Nut Socket

£82.23 - £82.23

£82.23

£82.23 - £82.23

£82.23

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

£82.23 - £82.23

£82.23

£82.23 - £82.23

£82.23

TMFS12 SKF Axial Lock Nut Socket

£131.61 - £131.61

£131.61

£131.61 - £131.61

£131.61

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

£131.61 - £131.61

£131.61

£131.61 - £131.61

£131.61

TMFS10 SKF Axial Lock Nut Socket

£115.14 - £115.14

£115.14

£115.14 - £115.14

£115.14

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

£115.14 - £115.14

£115.14

£115.14 - £115.14

£115.14

TMFS9 SKF Axial Lock Nut Socket

£115.14 - £115.14

£115.14

£115.14 - £115.14

£115.14

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

£115.14 - £115.14

£115.14

£115.14 - £115.14

£115.14

TMFS13 SKF Axial Lock Nut Socket

£139.83 - £139.83

£139.83

£139.83 - £139.83

£139.83

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

£139.83 - £139.83

£139.83

£139.83 - £139.83

£139.83

TMFS6 SKF Axial Lock Nut Socket

£74.01 - £74.01

£74.01

£74.01 - £74.01

£74.01

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

£74.01 - £74.01

£74.01

£74.01 - £74.01

£74.01

TMFS14 SKF Axial Lock Nut Socket

£230.33 - £230.33

£230.33

£230.33 - £230.33

£230.33

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

£230.33 - £230.33

£230.33

£230.33 - £230.33

£230.33

TMFS15 SKF Axial Lock Nut Socket

£246.78 - £246.78

£246.78

£246.78 - £246.78

£246.78

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

£246.78 - £246.78

£246.78

£246.78 - £246.78

£246.78

TMFS3 SKF Axial Lock Nut Socket

£79.00 - £79.00

£79.00

£79.00 - £79.00

£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.

£79.00 - £79.00

£79.00

£79.00 - £79.00

£79.00

TMFS2 SKF Axial Lock Nut Socket

£57.55 - £57.55

£57.55

£57.55 - £57.55

£57.55

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

£57.55 - £57.55

£57.55

£57.55 - £57.55

£57.55

TMFS5 SKF Axial Lock Nut Socket

£65.77 - £65.77

£65.77

£65.77 - £65.77

£65.77

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

£65.77 - £65.77

£65.77

£65.77 - £65.77

£65.77

HN12-13 SKF Hook Type Lock Nut Spanner 80 90mm

£27.11 - £27.11

£27.11

£27.11 - £27.11

£27.11

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.

£27.11 - £27.11

£27.11

£27.11 - £27.11

£27.11

TMFS18 SKF Axial Lock Nut Socket

£312.61 - £312.61

£312.61

£312.61 - £312.61

£312.61

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

£312.61 - £312.61

£312.61

£312.61 - £312.61

£312.61

TMFS20 SKF Axial Lock Nut Socket

£403.10 - £403.10

£403.10

£403.10 - £403.10

£403.10

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

£403.10 - £403.10

£403.10

£403.10 - £403.10

£403.10

TMFS19 SKF Axial Lock Nut Socket

£345.52 - £345.52

£345.52

£345.52 - £345.52

£345.52

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

£345.52 - £345.52

£345.52

£345.52 - £345.52

£345.52

TMFS17 SKF Axial Lock Nut Socket

£271.46 - £271.46

£271.46

£271.46 - £271.46

£271.46

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

£271.46 - £271.46

£271.46

£271.46 - £271.46

£271.46

TMFS4 SKF Axial Lock Nut Socket

£65.77 - £65.77

£65.77

£65.77 - £65.77

£65.77

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

£65.77 - £65.77

£65.77

£65.77 - £65.77

£65.77

KMT13 87x95x28mm SKF Lock Nut

£91.42 - £91.42

£91.42

£91.42 - £91.42

£91.42

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

£91.42 - £91.42

£91.42

£91.42 - £91.42

£91.42

KMFE9 53x65x13mm SKF Lock Nut

£30.12 - £30.12

£30.12

£30.12 - £30.12

£30.12

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

£30.12 - £30.12

£30.12

£30.12 - £30.12

£30.12

KM5 32x38x7mm SKF Lock Nut

£6.74 - £6.74

£6.74

£6.74 - £6.74

£6.74

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

£6.74 - £6.74

£6.74

£6.74 - £6.74

£6.74

KM6 38x45x7mm SKF Lock Nut

£7.27 - £7.27

£7.27

£7.27 - £7.27

£7.27

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

£7.27 - £7.27

£7.27

£7.27 - £7.27

£7.27

KM2 21x25x5mm SKF Lock Nut

£3.77 - £3.77

£3.77

£3.77 - £3.77

£3.77

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

£3.77 - £3.77

£3.77

£3.77 - £3.77

£3.77

Restablecer su contraseña

Lock Nuts – Secure Fastening Solutions Built to Last

What Makes Lock Nuts Different?

Lock Nut Types & Use Cases

Why Choose BEP’s Lock Nut Range?

Frequently Asked Questions (FAQs)

Q1. What is a lock nut, and how is it different from a regular nut?

Q2. When should I choose a Nyloc nut?

Q3. What are all-metal lock nuts used for?

Q4. Can security locknuts be reused?

Lock Nuts

Lock Nuts – Secure Fastening Solutions Built to Last

What Makes Lock Nuts Different?

Lock Nut Types & Use Cases

Why Choose BEP’s Lock Nut Range?

Frequently Asked Questions (FAQs)

Q1. What is a lock nut, and how is it different from a regular nut?

Q2. When should I choose a Nyloc nut?

Q3. What are all-metal lock nuts used for?

Q4. Can security locknuts be reused?