HARFINGTON 6pcs Star Clamping Knobs M6 x 40mm Metric Male Thread 32mm 4-Point Plastic Head Threaded Stud Knob Hand Tightening Thumb Screw Jig Handle, Black - size: M6 x 40mm x 32mm
HARFINGTON 6pcs Star Clamping Knobs M6 x 40mm Metric Male Thread 32mm 4-Point Plastic Head Threaded Stud Knob Hand Tightening Thumb Screw Jig Handle, Black - size: M6 x 40mm x 32mm
About this item
- Size - Thread size: M6 (1.0mm pitch); threaded stud length: 40mm / 1.57"; head size: 32mm x 24.5mm x 13mm / 1.26" x 1" x 0.5" (L*W*T); step size: 14.5mm x 4mm / 0.57" x 0.16" (d*t); total length: 53mm / 2.09"; knob style: 4-point star
- Material - Zinc plated carbon steel threaded studs on hand star knobs ensure durability, strength, functionality and wear resistance, providing reliable performance in various environments. PP plastic 4-star handle knob is durable, and can withstand daily wear and tear, lightweight and easy to use.
- Features - Star-shaped design for easy grip, preventing slippage and ensuring stable operation. Combines screw-type structure and 4-point star handle design for convenient operation, enhancing user efficiency. The tightly-in metal insert is machine-injected at high temperatures to securely connect the parts together.
- Applications - Stud Knobs are widely used in machinery, electronics, equipment, furniture. Can be used on drill presses, lathes, routing jigs, fixtures, packaging and woodworking machinery, printing equipment. Threads are neat and clear, the force is even and deep, not easy to slip, and there are no burrs.
- Note - Ensure that replacement knobs are securely and properly installed on the corresponding female threaded component or fastener. Do not over-tighten as this may cause damage of the male thread knob. Choose the star knob size that suits your needs. Replace the knob if necessary.
Overview
- Material: Thermoplastic, Carbon Steel
- Brand: HARFINGTON
- Color: Black
- Style: 4-Point Star
- Exterior Finish: Plastic, Metal
Couldn't load pickup availability
Low stock: 10 left
View full details

Reviews
-
⭐⭐⭐⭐⭐
Michael Turner — Columbus, Ohio
MROVanta made it easier to find several maintenance supplies in one place. The product information helped me compare the available options, and everything I ordered was useful for routine work around our facility.
-
⭐⭐⭐⭐⭐
Rachel Morgan — Phoenix, Arizona
I was looking for practical supplies for our workshop and found the selection easy to browse. The categories were well organized, and I could quickly locate tools, fasteners, and other items needed for regular maintenance.
-
⭐⭐⭐⭐⭐
David Collins — Charlotte, North Carolina
The products I selected were suitable for the maintenance tasks we had planned. I appreciated being able to review the specifications before ordering, especially when comparing sizes and compatibility for different applications.
-
⭐⭐⭐⭐⭐
Amanda Brooks — Denver, Colorado
I ordered a mix of facility and equipment supplies for our work area. The shopping process was straightforward, and the selection covered several everyday maintenance needs without requiring visits to multiple stores.
New Arrivals
-
2PCS Shaft Coupling 6.35mm to 10mm Aluminum Alloy Joint 25mm Length 20mm Diameter Stepper Motor Connector Rigid Coupler for 3D Printer CNC Machine DIY Model (6.35x10mm, D20 L25) - size: 6.35x10mm
Regular price $13.10 USDRegular priceSale price $13.10 USD -
IdeaFormer-3D Flexible PET PEI Build Plate for Bambu Lab A1 Mini, Double Sided Carbon Fiber PET+Textured PEI Spring Steel Sheet 184x184mm for Bambu A1 Mini 3D Printers - color: Smooth PET+Textured PEI
Regular price $26.54 USDRegular priceSale price $26.54 USD -
2" TC In-line Strainer Inlet , 316L SS (Short)
Regular price $754.88 USDRegular priceSale price $754.88 USD -
2PCS Shaft Coupling 6.35mm to 8mm Aluminum Alloy Joint 25mm Length 20mm Diameter Stepper Motor Connector Rigid Coupler for 3D Printer CNC Machine DIY Model (6.35x8mm, D20 L25) - size: 6.35x8mm
Regular price $14.76 USDRegular priceSale price $14.76 USD -
(15 Pieces) 3/8"-24 Grade 8 Hex Flange Prevailing Torque Top Lock Nuts Phos &Oil
Regular price $33.42 USDRegular priceSale price $33.42 USD -
2PCS Shaft Coupling 5mm to 8mm Aluminum Alloy Joint 25mm Length 20mm Diameter Stepper Motor Connector Rigid Coupler for 3D Printer CNC Machine DIY Model (5x8mm - size: 5x8mm
Regular price $14.18 USDRegular priceSale price $14.18 USD -
Thermocouple Thermometer Digital K Type Dual Channel Thermometer HVAC Temperature Meter with 4 Thermocouples, MAX/MIN/AVG Temperature Measurement, -50~1300°C (-58~2372°F)
Regular price $42.99 USDRegular priceSale price $42.99 USD -
MaxTool 2-1/4" TCT Hole Saw 57mm Carbide Tip Holesaw 2.25" Deep with 5/8-18 Thread Arbor Pilot Drill 3-Piece for Tough Abrasive Material; CT00Y57R216A
Regular price $49.09 USDRegular priceSale price $49.09 USD -
Storage Hair Dryer Holder for Curling Iron Accessories, Hair Tool Organizer Wall Mount, Curling Iron Holder, Bathroom Hair Straightener Holder Stand for Styler Attachments Organizer, Rose Gold - color: Rose Gold
Regular price $41.13 USDRegular priceSale price $41.13 USD -
Storage Hair Dryer Holder for Curling Iron Accessories, Hair Tool Organizer Wall Mount, Curling Iron Holder, Bathroom Hair Straightener Holder Stand for Styler Attachments Organizer, Gold - color: Gold
Regular price $44.80 USDRegular priceSale price $44.80 USD -
uxcell 6K425/6PK1080 Serpentine Belt 6 Ribs 1080mm Length x 21mm Width x 5mm Height, EPDM Poly V Belt, Multi Wedge Micro V Belt for Vehicle - size: 6PK1080
Regular price $21.73 USDRegular priceSale price $21.73 USD -
CRC Heavy Duty Silicone Lubricant, 11 Wt Oz, Clear Colorless Liquid (Pack of 2)
Regular price $39.87 USDRegular priceSale price $39.87 USD -
uxcell 6K413/6PK1050 Serpentine Belt 6 Ribs 1050mm Length x 21mm Width x 5mm Height, EPDM Poly V Belt, Multi Wedge Micro V Belt for Vehicle - size: 6PK1050
Regular price $21.73 USDRegular priceSale price $21.73 USD -
uxcell 6K423/6PK1075 Serpentine Belt 6 Ribs 1075mm Length x 21mm Width x 5mm Height, EPDM Poly V Belt, Multi Wedge Micro V Belt for Vehicle - size: 6PK1075
Regular price $21.73 USDRegular priceSale price $21.73 USD -
Hordion 2Pcs Stainless Steel 90 Degree Elbow 3/4"NPT Male x 3/4"NPT Female
Regular price $12.43 USDRegular priceSale price $12.43 USD -
uxcell 6K406/6PK1030 Serpentine Belt 6 Ribs 1030mm Length x 21mm Width x 5mm Height, EPDM Poly V Belt, Multi Wedge Micro V Belt for Vehicle - size: 6PK1030
Regular price $20.57 USDRegular priceSale price $20.57 USD -
uxcell 6K409/6PK1040 Serpentine Belt 6 Ribs 1040mm Length x 21mm Width x 5mm Height, EPDM Poly V Belt, Multi Wedge Micro V Belt for Vehicle - size: 6PK1040
Regular price $21.90 USDRegular priceSale price $21.90 USD -
Storage Hair Dryer Holder for Curling Iron Accessories, Hair Tool Organizer Wall Mount, Curling Iron Holder, Bathroom Hair Straightener Holder Stand for Styler Attachments Organizer, White - color: White
Regular price $48.12 USDRegular priceSale price $48.12 USD
Featured Collections
-
Abrasive & Finishing Products
Prepare, shape, smooth, clean, and finish working surfaces with the Abrasive &...
-
Adhesives, Sealants & Lubricants
Support assembly, repair, sealing, protection, and equipment maintenance with the Adhesives, Sealants...
-
Cutting Tools
Explore cutting tools for machining, fabrication, repair, installation, and routine maintenance across...
FAQ
How can I confirm that a product is suitable for my application?
Review the product description, dimensions, materials, ratings, connection types, and compatibility information before ordering. Industrial requirements vary, so consult the equipment manufacturer or a qualified professional if you are uncertain.
Do you provide installation or technical advice?
We can help clarify information shown on a product page, but we do not provide engineering, installation, or workplace-safety advice. Products should be selected, installed, and operated by appropriately qualified personnel where required.
Can I change or cancel my order after placing it?
Contact us as soon as possible at ruleindgalein@gmail.com. We will try to accommodate your request, but changes or cancellations cannot be guaranteed once an order has entered processing or shipment.
When will my order be shipped?
Processing and delivery estimates may vary depending on the product, destination, inventory availability, and carrier. Please review the shipping information provided at checkout and our Shipping & Delivery Policy for additional details.
How can I track my order?
When tracking becomes available, it will be sent to the email address used for your order. Tracking activity may take some time to appear after the carrier receives the shipment.
Why did my order arrive in more than one package?
Items from the same order may be fulfilled or shipped separately. As a result, packages can arrive at different times and may have separate tracking numbers. You will not be charged additional shipping solely because an order is divided into multiple shipments.
What should I do if an item arrives damaged, defective, or incorrect?
Contact us promptly at ruleindgalein@gmail.com with your order number, a description of the issue, and clear photographs of the item, packaging, shipping label, and any visible damage. Keep all packaging until we provide further instructions.
Can I return an item if it is not suitable?
Eligible items may be returned in accordance with our Return & Refund Policy. Return conditions, exclusions, time limits, and any applicable costs depend on the item and circumstances. Please contact us before sending anything back.
Do you offer bulk quantities or business purchasing?
Availability of larger quantities varies by product. Email us with the product link, desired quantity, required specifications, and delivery location, and we will let you know whether suitable options are available.
How can I contact MROVanta?
Email us at ruleindgalein@gmail.com or call +1 (936) 260-5549. Include your order number when contacting us about an existing purchase so we can assist you more efficiently.
Blog posts
View all-
How to Stop Rust Before It Starts: A Practical ...
Learn how to prevent rust on exposed metal pipes in humid industrial facilities. Discover practical corrosion-control methods, surface preparation techniques, coating considerations, and preventive maintenance practices.
How to Stop Rust Before It Starts: A Practical ...
Learn how to prevent rust on exposed metal pipes in humid industrial facilities. Discover practical corrosion-control methods, surface preparation techniques, coating considerations, and preventive maintenance practices.
-
How to Stop Rust Before It Starts: A Practical ...
Learn how to prevent rust on exposed metal pipes in humid industrial facilities with practical corrosion-control strategies. Discover how moisture, condensation, coatings, pipe supports, and routine MRO inspections work together...
How to Stop Rust Before It Starts: A Practical ...
Learn how to prevent rust on exposed metal pipes in humid industrial facilities with practical corrosion-control strategies. Discover how moisture, condensation, coatings, pipe supports, and routine MRO inspections work together...
-
Why Exposed Metal Pipes Rust Faster in Industri...
Learn why exposed metal pipes rust faster in industrial facilities and discover practical corrosion prevention strategies for humid, outdoor, and chemical-exposure environments.
Why Exposed Metal Pipes Rust Faster in Industri...
Learn why exposed metal pipes rust faster in industrial facilities and discover practical corrosion prevention strategies for humid, outdoor, and chemical-exposure environments.















