Categories
-
Plugs & Stoppers
-
Tapered Rubber Plugs
-
Silicone Ribbed Plugs
-
Silicone Tapered Plugs
-
Silicone Plugs With Handle
-
Silicone Step Plugs
-
Silicone Pull Plugs
-
Silicone Thread Masking Plugs
-
Threaded Plugs
-
Threaded Sealing Plugs
-
Cylindrical Pull Tab Plugs
-
Finned Pull Tab Plugs
-
Fir Tree Plugs
-
Reversible Tapered Plugs
-
Round Tube Plugs
-
Snap Fit Hole Plugs
-
Stainless Steel Socket Pipe Plugs DIN 906
-
Door Stoppers
-
Door Wedge
-
Finned Hole Plugs
-
Plastic End Plugs
-
Ribbed Pipe End Plugs
-
Blanking Plugs
-
Ventilation Plugs
-
Snap Fit Bushes
-
Liquid Tight Plugs
-
Barrel Plugs
-
Washer Masking Plugs
-
Measurement Guide
-
Silicone Double Flange Plugs
-
Silicone Flange Plugs
-
-
Furniture & Chair Feet
-
Adjustable Feet
-
Anti-Vibration Levelling Feet
-
Economic Adjustable Feet
-
Balance Feet
-
Slotted Head Adjustable Feet
-
Rubber Adjustable Feet
-
Stainless Steel Adjustable Feet
-
Ready To Install Sets
-
Weight Rated Articulated Feet
-
Allen Key Adjustable Feet
-
Heavy Duty Tilting Feet
-
General Adjustable Feet
-
Tilting Adjustable Feet
-
Pozi Base Adjustable Feet
-
Polyamide Adjustable Feet
-
One Piece Adjustable Feet
-
Metal Adjustable Feet
-
Machinery Mounting Feet
-
Threaded Fittings & Fixings
-
Fitting Guide
-
Hexagon Base Feet
-
Low Profile Adjustable Feet
-
-
Cable Management
-
Aluminium Cable Clips
-
Braided Cable Sleeving
-
Multi Cable Clips
-
PVC Cable Sleeving
-
Spiral Cable Wrap
-
Cable Glands
-
Heavy Duty P Clips
-
Strain Relief
-
Nylon P Clips
-
Heavy Duty Large P Clamps
-
Heavy Duty Small P Clamps
-
Rubber Grommets
-
Cable Ties
-
Cable Tie Mounts
-
Desk Cable Tidies
-
Velcro Cable Management
-
Heat Shrink Sleeves
-
Plastic Grommet Strips
-
Adhesive Lined Heatshrink
-
Heat Shrink Caps
-
Rubber Grommet Strips
-
-
Bolts and Screws
-
Cheese Head Slotted Screws DIN 84
-
Pipe Plugs
-
Hex Head Screws and Bolts
-
Cap Screws
-
Button Screws
-
Countersunk Screws
-
Pan Head Machine Screws
-
Security Fasteners
-
Screws for Plastic
-
Knurled Fasteners
-
Grub Screws
-
Threaded Rod (All Thread)
-
Weld Studs
-
Small Bolts
-
Stainless Steel Bolts By Metric Thread Size
-
Large Bolts
-
-
Washers
-
Bonded Sealing Washers
-
Standard Nylon Washers
-
Rubber Washers
-
Peek Washers
-
Silicone Washers
-
Red Fibre Washers
-
PTFE Washers
-
FKM Washers
-
Anti-Loss Washers
-
Finishing Washers
-
Headboard Washers
-
Saddle Washers
-
Stainless Steel Flat Washers
-
Stainless Steel Spring Washers
-
Stainless Steel Curved Washers
-
Stainless Steel Serrated Washers
-
Stainless Steel Finishing Washers
-
Stainless Steel Tab Washers
-
WRAS Washers
-
-
Plastic & Nylon Fasteners
-
Industrial Hardware
-
Adhesive Tapes
-
PTFE Tape
-
Packing Tape
-
Fragile Tape
-
Cloth Tape
-
PVC Electrical Insulation Tape
-
Underground Cable Warning Tape
-
Floor Marking Tape
-
Safety Hazard Warning Tape
-
Non Slip Tape
-
Non-Adhesive Barrier Tape
-
Double Sided Foam Tape
-
Fleece Tape
-
Self Amalgamating PVC Tape
-
Self Amalgamating Silicone Tape
-
Self Amalgamating EPR Tape
-
Low Tack Paper Masking Tape
-
UV Resistant Blue Masking Tape
-
-
Panel Fasteners
-
School & Office Products
-
Rubber Seals
-
Business Services
- Terms and conditions
Quantity | Unit Price (ex. VAT) |
Unit Price (inc. VAT) |
---|---|---|
2 - 49 | £2.79 | £2.79 |
50 - 99 | £2.51 | £2.51 |
100 - 249 | £2.28 | £2.28 |
250 + | £1.93 | £1.93 |
Product Stock

Product Specifications
LN980-M18-A4- Thread Size
- M18
- Material
- A4
- Height
- 15mm
- Thread Pitch
- 2.5mm
- Across Flats
- 27mm
- Standard
- ART 980

Same Day Dispatch Available
| Order by 4.00pm (UK) for same day dispatch (Monday – Thursday, 2.00pm Friday). Next Day or Standard Delivery available via DHL or Royal Mail.
Frequently Bought Together

Specifications
Material | A4 |
Thickness | 3.3mm |
Internal Diameter | 19mm |
Outside Diameter | 34mm |
Standard | DIN 125A |
Size | M18 |
Total Price: £0.00
Product Description
M18 - All Metal Self-Locking Nuts DIN 980V - A4 Stainless Steel
Our All Metal Self-Locking Nuts, also known as Inloc Nuts, are precision-engineered fastening solutions designed to provide superior resistance to loosening due to vibration and torque. These nuts feature a unique locking mechanism, making them an excellent choice for demanding applications in the automotive, aerospace, construction, and manufacturing industries.
This product is made from high-strength A4 stainless steel, ensuring durability and corrosion resistance. Unlike nylon lock nuts, our all-metal variant offers high-temperature resistance and can be reused multiple times without compromising the locking function.
What Are All Metal Self-Locking Nuts?
All Metal Self-Locking Nuts are fasteners manufactured to DIN 980V standards. These nuts have a deformed thread section at the top, usually created by a triangular indent, which causes misalignment in the upper threads. This intentional deformation creates resistance when engaged with a bolt, preventing unintentional loosening under vibration or dynamic loads.
Unlike traditional hex nuts, these metal lock nuts eliminate the need for additional locking components such as washers or adhesives, making them highly efficient and reliable.
Key Features:
- Thread Size : M18
- Thread Pitch : 2.5mm
- Across Flats : 27mm
- Height : 15mm
- Engineered locking mechanism prevents loosening due to vibration or torque.
- Reusable multiple times without degradation of locking performance.
- Withstands extreme temperatures, making them superior to nylon lock nuts.
- Available in metric sizes ranging from M3 to M24.
- Meets DIN 980V standard for reliable performance.
Applications:
Our All Metal Self-Locking Nuts are ideal for:
- Securing bolts and machine screws in high-vibration environments.
- Automotive applications, including engine assembly and suspension components.
- Heavy machinery, industrial equipment, and construction applications.
- Marine and offshore industries where corrosion resistance is essential.
Benefits:
- Provides long-lasting security for fastened components.
- Eliminates the need for additional locking elements, reducing assembly time and cost.
- Resists loosening from vibration, ensuring reliability in dynamic applications.
- High temperature and corrosion resistance for use in harsh environments.
- Available in a range of sizes to suit various industrial requirements.
Whether you need a secure fastening solution for automotive or heavy-duty industrial applications, our All Metal Self-Locking Nuts provide unmatched reliability and performance. Browse our full range of sizes and materials in the product table below or contact our expert team at 01233 713581 for more information.
Related Products
Code | Thread Size | Material | Height | Thread Pitch | Across Flats | Standard | Stock | |
---|---|---|---|---|---|---|---|---|
LN980-M10-A2 | M10 | A2 | 8mm | 1.5mm | 17mm | ART 980 |
In Stock
|
|
LN980-M12-A2 | M12 | A2 | 10mm | 1.75mm | 19mm | ART 980 |
In Stock
|
|
LN980-M14-A2 | M14 | A2 | 11mm | 2mm | 22mm | ART 980 |
In Stock
|
|
LN980-M16-A2 | M16 | A2 | 13mm | 2mm | 24mm | ART 980 |
In Stock
|
|
LN980-M18-A2 | M18 | A2 | 15mm | 2.5mm | 27mm | ART 980 |
In Stock
|
|
LN980-M3-A2 | M3 | A2 | 2.4mm | 0.5mm | 5.5mm | ART 980 |
In Stock
|
|
LN980-M4-A2 | M4 | A2 | 3.2mm | 0.7mm | 7mm | ART 980 |
In Stock
|
|
LN980-M5-A2 | M5 | A2 | 4mm | 0.8mm | 8mm | ART 980 |
In Stock
|
|
LN980-M6-A2 | M6 | A2 | 5mm | 1mm | 10mm | ART 980 |
In Stock
|
|
LN980-M7-A2 | M7 | A2 | 5.5mm | 1mm | 11mm | ART 980 |
In Stock
|
|
LN980-M8-A2 | M8 | A2 | 6.5mm | 1.25mm | 13mm | ART 980 |
In Stock
|
|