- Home Page /
- Industrial Supplies /
- Industrial Hardware /
- Knobs & Hand Wheels /
- Star Knobs /
- BokWin Star Hand Tightening Screw M8x20mm Cla...
0 ratings
Item #:
89902656
BokWin Star Hand Tightening Screw M8x20mm Clamping Knob Handle for Umbrella Base Replacement (Black)
Item #:
89902656
TZS 36161
Price Details
Excluding Shipping & Custom charges ( Shipping and custom charges will be calculated on checkout )
*All items will import from US
In stock
Imported from USA store
QTY:
Only 6 items left in stock.
Order now and get it around Friday, July 10
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Made of high quality plastic and carbon steel, these durable clamping screws are perfect for various applications.
Fast
Shipping
Free
Return*
Secure Packaging
100% Original Products
PCI DSS Compliance
ISO 27001 Certified
Note: Step Down Voltage Transformer required for using electronics products of US store (110-120). Recommended power converters Buy Now.
What Stands Out
Easy Installation
Designed for quick and effortless installation, this clamping knob allows users to securely fasten umbrella bases without the need for additional tools, enhancing convenience and efficiency in setup.
Durable Material
Constructed from high-quality materials, the BokWin knob ensures longevity and resistance to wear and tear, delivering reliable performance for outdoor settings and varying weather conditions.
Versatile Compatibility
With an M8x20mm size, this clamping knob is compatible with various umbrella models, making it an ideal replacement part that promotes seamless integration and functionality across different outdoor equipment.
Product Details
- Material: This clamping screw knob is made of high quality plastic, smooth surface without burrs, not easy to rust, corrosion resistance, durable.
- Features: screw head star design, comfortable grip, ergonomic, easy to save energy, not easy to scratch your hand.
- Scope of Application: our hex shaped clamping knob is suitable for speaker stands, automotive, woodworking jigs, industrial instruments and other mechanical equipment.
- Thread Size: M8x20mm/0.31"x0.79"(RxL), head diameter is about 38mm/1.5".
- Package Contains:You will get 2 pcs black Thread Knob Tightening Screw.Please confirm the thread size you need before purchase.
| Item Dimensions | 1.5 x 0.31 x 0.31 inches (3.8 x 0.8 x 0.8 cm) |
| Thread Size | 0.79 inch (2 cm) |
| Thread Coverage | Fully Threaded |
| Fastener Size | M8x20mm |
| Size Name | M8*20(Star) |
| Item Diameter | 0.31 Inches (0.8 cm) |
| Number of Pieces | 2 |
| Brand | BokWin |
| Fastener Type | Screw |
| Set Name | BokWin Star Knob Tightening Screw Set (2 Pack) |
| Number Of Items | 2 |
| Unit Count | 2.0 Count |
| Manufacturer | BokWin |
| Included Components | Knob, Screw |
| Screw Head Style | Star |
| Screw Point Style | Star |
| Head Type | Hex |
| Thread Type | Metric |
| Set Screw Thread Type | Metric |
| Thread Style | Right Hand, M8x20mm |
| Thread Class | 3A |
| Drive System | Star |
| Material Type | Plastic |
| Exterior Finish | Black Oxide |
| Metal Type | Carbon Steel |
| Finish Types | Black oxide |
| Material | Plastic |
| Head Style | Star |
| Item dimensions L x W x H | 1.5 x 0.31 x 0.31 inches (3.8 x 0.8 x 0.8 cm) |
Who Should Buy?
-
Umbrella Owners
Perfect for users needing to replace their stolen or damaged umbrella base knob, ensuring stability and functionality.
-
DIY Enthusiasts
Ideal for individuals who enjoy fixing and maintaining their outdoor furniture, providing easy installation and adjustments.
-
Event Planners
Beneficial for professionals hosting outdoor events, ensuring umbrellas remain securely anchored during windy conditions.
-
Non-Umbrella Users
Not suitable for individuals without umbrellas, as the knob specifically serves umbrella base tightening needs.
-
Heavy-Duty Needs
Users requiring more robust clamping solutions for heavy equipment may find this product inadequate for their needs.
-
Non-Mechanical Users
Individuals uncomfortable with mechanical adjustments might struggle with using this tightening knob effectively.
Product Description
Have any Query? Chat with us
Customer Questions & Answers
-
Question:
What materials are the screws made of?
Answer: The screws are made of high quality plastic and carbon steel. -
Question:
What is the thread size of the clamping screws?
Answer: The thread size is M8x20mm (0.31x0.79 inches). -
Question:
Can these screws be used for automotive applications?
Answer: Yes, these clamping screws are suitable for automotive, woodworking, and various mechanical equipment.
BokWin Star Knobs Editorial Review
No editorial reviews found
Customer Reviews & Ratings
92 customers ratings
-
5 Star
73%
-
4 Star
14%
-
3 Star
6%
-
2 Star
4%
-
1 Star
3%
Review this product
Share your thoughts with other customers
Platform Trust & Buyer Confidence
MT
Mohd
Verified buyer
“The product received very good packaging & safe…Thank You”
16 June 2026 · via Trustpilot
SJ
Shawati
Verified buyer
“Accurate delivery timing given”
16 June 2026 · via Trustpilot
YB
Youcef
Verified buyer
“Not madly expensive like I thought, and much quicker than promised.”
15 June 2026 · via Trustpilot
LM
Leila
Verified buyer
“Never dealt with Ubuy before, but everything worked out great. Seamless cross border purchasing and shipping. Thanks!”
6/7/2026 · via Trustpilot
KA
Kwame
Verified buyer
“The process was smooth, with clear communication and timelines. This was my 1st purchase and I am really impressed. I will definitely be coming back.”
12 June 2026 · via Trustpilot
Secure Checkout
Global Delivery
Easy Returns
Genuine Products
Product Price History
Important information
- Limitations : For products shipped internationally, please note that any manufacturer warranty may not be valid; manufacturer service options may not be available; product manuals, instructions, and safety warnings may not be in destination country languages; the products (and accompanying materials) may not be designed in accordance with destination country standards, specifications, and labeling requirements; and the products may not conform to destination country voltage and other electrical standards (requiring use of an adapter or converter if appropriate). The recipient is responsible for assuring that the product can be lawfully imported to the destination country. When ordering from Ubuy or its affiliates, the recipient is the importer of record and must comply with all laws and regulations of the destination country.
- Not all the products listed on Ubuy are for sale, as Ubuy is a global search engine. Products are subject to export/trade regulations.
TZS 36161
Order now and get it around Friday, July 10
This item is not restrict in my country.(Please click on above link if this item is not restrict in your country, So our team will review and allow.)
QTY:
Only 6 items left in stock.
Secured transaction
Ubuy works hard to protect your security and privacy. Our advanced payment security system ensures confidentiality by encrypting your information during transmission using AES (Advanced Encryption Standards) and SSL (Secure Socket Layer) protocols. Your payment details are 100% secure as we do not share your payment details with third party sellers.
Our Top Logistics Partners
Fastest cross-border delivery
Features & Benefits
- High quality plastic and carbon steel construction ensures durability.
- Smooth surface without burrs, resistant to rust and corrosion.
- Ergonomic screw head design for a comfortable grip.
- Suitable for speaker brackets, woodworking jigs, and industrial equipment.
- Includes 2 pieces of 8mmx20mm Thread Knob Tightening Screws.
- Easy to tighten and saves energy while avoiding hand scratches.