--- product_id: 538141661 title: "M8 x 40mm Thread Star Knob 2Pcs, Plastic Star Shaped Clamping Knob Handle Hand Tightening Screw for Umbrella Base Replacement" brand: "lifcratms" price: "€ 16.58" currency: EUR in_stock: true category: "Lif Cratms" url: https://www.desertcart.be/products/538141661-m8-x-40mm-thread-star-knob-2pcs-plastic-star-shaped store_origin: BE region: Belgium --- # Ergonomic star-shaped grip M8 x 40mm precision thread Durable zinc-plated carbon steel M8 x 40mm Thread Star Knob 2Pcs, Plastic Star Shaped Clamping Knob Handle Hand Tightening Screw for Umbrella Base Replacement **Brand:** lifcratms **Price:** € 16.58 **Availability:** ✅ In Stock ## Summary > ⭐ Tighten with style and ease—because your projects deserve the best! 🔩 ## Quick Answers - **What is this?** M8 x 40mm Thread Star Knob 2Pcs, Plastic Star Shaped Clamping Knob Handle Hand Tightening Screw for Umbrella Base Replacement by lifcratms - **How much does it cost?** € 16.58 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.be](https://www.desertcart.be/products/538141661-m8-x-40mm-thread-star-knob-2pcs-plastic-star-shaped) ## Best For - lifcratms enthusiasts ## Why This Product - Trusted lifcratms brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Built to Last:** Galvanized zinc plating on carbon steel delivers superior corrosion resistance and durability. - • **Risk-Free Confidence:** Backed by responsive customer support and a 31-hour satisfaction guarantee for worry-free shopping. - • **Effortless DIY Upgrade:** Ergonomic star design lets you tighten with just your fingers—no tools needed. - • **Versatile Clamping Power:** Perfect for speaker stands, woodworking, automotive, and more—your all-in-one tightening solution. - • **Precision Fit, Every Time:** M8 x 40mm threaded knob ensures seamless compatibility with umbrella bases and industrial fixtures. ## Overview The LifCratms M8 x 40mm Thread Star Knob set features two ergonomically designed, star-shaped knobs with precision M8 threading. Crafted from durable zinc-plated carbon steel, these knobs provide a comfortable, tool-free tightening experience ideal for umbrella bases, industrial equipment, and DIY projects. Their corrosion-resistant finish and universal compatibility make them a reliable upgrade for both professional and home use. ## Description Buy LifCratms M8 x 40mm Thread Star Knob 2Pcs, Plastic Star Shaped Clamping Knob Handle Hand Tightening Screw for Umbrella Base Replacement: Star Knobs - desertcart.com ✓ FREE DELIVERY possible on eligible purchases ## Features - 【The Size You Will Get】 Thread size: M8 x 40mm / 0.31'' x 1.57''(D x L), M8 Head Dia (Approx): 39mm / 1.53'', please check the thread you need before buying Size, male knob is ideal for DIY projects and home repairs - 【Quick & Easy Installation】 No hardware required, this male threaded knobs adopts special star design, comfortable in hand, ergonomic, easy to turn with just your fingers, will not scratch your hand.Come together to diy and install these star knobs into your threaded holes - 【High-Quality Material】 The screw is smooth and burr-free overall, comfortable to hold, the thread is deep and complete and clear, the force is even and not slippery, the stud is made of carbon steel, the surface of the screw is galvanized process, uniform plating, high hardness, durable - 【Wide Scope of Application】 M8 threaded knob Suitable for speaker stands, automotive, woodworking fixtures, industrial instruments and other machinery and equipment, workbenches or benches, is the best choice for clamping operations, industrial equipment, is your daily life to replace the tightening screw - 【100% Risk-Free Shopping】 If there are any quality problems with our products, please contact us via desertcart email as soon as possible. We will sincerely serve you within 31 hours and give you a satisfactory solution. Please rest assured to order, we wish you a happy shopping experience ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B09TVK3BD9 | | Additional Features | Durable, Easy to Install | | Best Sellers Rank | #6,438 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #2 in Star Knobs | | Brand Name | LifCratms | | Color | Black | | Customer Package Type | FFP | | Customer Reviews | 4.4 4.4 out of 5 stars (126) | | Exterior Finish | Zinc | | Finish Types | Smooth | | Hand Orientation | Ambidextrous | | Handle Attachment Mechanism | Threaded | | Handle Compatibility | Universal | | Handle Material | Alloy Steel, Zinc | | Handle Type | Knob | | Included Components | Knob, Lock | | Item Dimensions L x W | 1.57"L x 0.31"W | | Item Weight | 2.08 ounces | | Manufacturer | LifCratms | | Manufacturer Part Number | SUIBMTSK008 | | Material Type | Carbon Steel, Metal, Plastic | | Metal Type | Zinc Plated | | Model Number | SUIBMTSK008 | | Number of Items | 2 | | Shape | Star | | Specific Uses For Product | Diverse Industrial & Household Applications | | Style Name | Star Handle | | Theme | Star | | Unit Count | 2.0 Count | ## Product Details - **Brand:** LifCratms - **Color:** Black - **Material:** Carbon Steel, Metal, Plastic - **Product Dimensions:** 1.57"L x 0.31"W - **Style:** Star Handle ## Images ![M8 x 40mm Thread Star Knob 2Pcs, Plastic Star Shaped Clamping Knob Handle Hand Tightening Screw for Umbrella Base Replacement - Image 1](https://m.media-amazon.com/images/I/61IUcaI1tfL.jpg) ## Available Options This product comes in different **Color, Size, Style** options. ## Questions & Answers **Q: What is the thread pitch?** A: Hello, Thank you for your question. The thread pitch of "M10 x 30mm Thread Star Knob" is 1.5mm. Best Regards **Q: What is the thread pitch of the M8x40?** A: Hello， Thank you for your question. The thread pitch of the M8x40 is about 1.25mm. Best Regards ## Frequently Bought Together - LifCratms M8 x 40mm Thread Star Knob 2Pcs, Plastic Star Shaped Clamping Knob Handle Hand Tightening Screw for Umbrella Base Replacement - 1-Pack 12.5" Scooter Inner Tube 12 1/2 x 2 1/4 Angled Valve Stem 12.5" x 2.25" Tube Compatible with 12.5X1.75 12.5 X 1.95 12.5 X 2.125 12.5 x 2.25 Most Bike and Scooter Tire Tube - E-outstanding 2Pcs Black Bike Seat Clamp Seat Post Quick Release Saddle Parts for Folding Bicycle Mountain Bike M6x65 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.be/products/538141661-m8-x-40mm-thread-star-knob-2pcs-plastic-star-shaped](https://www.desertcart.be/products/538141661-m8-x-40mm-thread-star-knob-2pcs-plastic-star-shaped) --- *Product available on Desertcart Belgium* *Store origin: BE* *Last updated: 2026-07-28*