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) |
---|---|---|
0 - 2 | £15.93 | £15.93 |
2 - 99 | £14.65 | £14.65 |
100 - 249 | £13.48 | £13.48 |
250 - 499 | £12.40 | £12.40 |
500 + | £11.41 | £11.41 |
Product Stock

Product Specifications
SQT054- Thread Size
- M20
- Material
- Stainless Steel
- Colour
- Black
- Outside Diameter
- 50mm x 50mm
- Wall Thickness
- 2.5mm

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
Base Diameter | 120mm |
Thread Size | M20 |
Stud Length | 150mm |
Style | 2 |
Material | Nylon Base |
Weight Rating | 900kg |

Specifications
Base Diameter | 80mm |
Thread Size | M20 |
Stud Length | 150mm |
Style | 1 |
Material | Nylon Base & Zinc Plated Steel Stem |

Specifications
Base Diameter | 75mm |
Thread Size | M20 |
Material | A2 Stainless Steel |
Thread Length | 230mm |
Total Price: £0.00
Product Description
M20 x 50mm x 50mm - Heavy Duty Square Threaded Insert - Black - Stainless Steel | Vital Parts (SQT054)
Our Heavy Duty Square Threaded Inserts are a vital and robust component specifically engineered for a wide range of industrial applications, where durability and a secure connection are paramount. Designed to provide a strong, threaded attachment point within square tubing, this insert ensures maximum stability and structural integrity, making it an essential element in heavy-duty frameworks, precision machinery, and industrial conveyor systems. With its reinforced nylon construction and Stainless Steel ...
What are Heavy Duty Square Threaded Inserts?
Heavy Duty Square Threaded Inserts are specialized tube inserts designed to provide a secure threaded connection inside square tubing. Manufactured using heavy-duty Nylon, they are engineered to handle high-stress environments, making them an excellent choice for industrial applications. These inserts feature a ribbed exterior, ensuring a tight and secure fit within tubing.
Key Features:
- Outside Diameter : 50mm x 50mm
- Wall Thickness : 2.5mm
- Thread Size : M20
- Made from durable and impact-resistant Nylon
- Threaded with high-quality Stainless Steel
- Provides excellent weight stabilization and shock absorption
- Ribbed body for a secure and tight fit
- Available in various thread sizes from M8 to M20
- Designed for use in heavy-duty industrial applications
Applications:
Our Heavy Duty Square Threaded Inserts are ideal for:
- Providing a stable and secure threaded connection for machinery and conveyor systems
- Protecting square tubing in heavy-duty frameworks
- Ensuring stability and shock absorption in structural applications
- Used in factory equipment, industrial shelving, and processing machinery
Benefits:
- Enhances stability and durability in industrial settings
- Prevents movement and vibration in heavy machinery
- Corrosion-resistant threads for long-lasting performance
- Quick and easy installation without requiring additional components
- Reduces wear and tear on machinery by providing a stable mounting point
Why Buy from Vital Parts?
As a trusted UK supplier of high-quality fasteners and industrial components, Vital Parts offers a customer-first experience with benefits that include:
- Same-Day Dispatch: Fast and reliable shipping to keep your projects on track.
- Competitive Trade Pricing: Enjoy bulk discounts on larger orders to save more.
- Expert Technical Support: Our knowledgeable team is here to help with product selection and application advice.
We stock these Heavy Duty Square Threaded Inserts in multiple sizes to meet your specific requirements. Whether you need them for industrial, commercial, or engineering applications, our heavy-duty threaded inserts provide a reliable and efficient solution. Browse our full product range below to find the perfect fit for your project, or contact our expert team at 01233 713581.
Related Products
Code | Thread Size | Material | Colour | Outside Diameter | Wall Thickness | Stock | |
---|---|---|---|---|---|---|---|
SQT051 | M12 | Stainless Steel | Black | 50mm x 50mm | 2.5mm |
In Stock
|
|
SQT052 | M14 | Stainless Steel | Black | 50mm x 50mm | 2.5mm |
In Stock
|
|
SQT053 | M16 | Stainless Steel | Black | 50mm x 50mm | 2.5mm |
In Stock
|
|
SQT054-850 | M16 | Brass | Black | 50mm x 50mm | 2.5mm |
In Stock
|
|
SQT054-900 | M12 | Brass | Black | 50mm x 50mm | 2.5mm |
In Stock
|
|
SQT054-950 | M10 | Brass | Black | 50mm x 50mm | 2.5mm |
In Stock
|
|