Star Hand Knob Clamping Screw, Threaded Replacement Tightening Handle for Machine Tools, Fixtures, Furniture and Umbrella Bases

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Product Description Upgrade or replace worn hardware with this M8 x 40mm threaded clamping knob, designed for quick, tool-free installation on patio umbrella bases, machinery, industrial equipment, furniture, jigs, and fixtures. Its ergonomic star-shaped grip provides comfortable finger control, helping you tighten and loosen securely whenever convenient maintenance or adjustment is needed. Key Features M8 Threaded Design: Features an 8mm diameter male thread with a 40mm thread length for compatible applications. Easy Tool-Free Installation: Simply rotate the knob by hand to install or remove it, making replacement fast and convenient. Ergonomic Star Grip: The contoured shape offers a comfortable handhold and smooth finger operation for reliable tightening. Versatile Replacement Hardware: Suitable for M8 threaded fittings or applications with an approximately 8.4mm diameter hole. Wide Application Range: Ideal for patio umbrella stand screw replacement, machinery, industrial equipment, furniture decoration, jigs, and fixtures. Compact Specifications: Head dimensions measure approximately 38 x 38 x 20mm; please verify all measurements before purchase. Specifications Product Type: Threaded clamping knob Thread Diameter: M8 / 8mm Thread Length: 40mm Head Size: Approximately 38 x 38 x 20mm Recommended Hole Diameter: Approximately 8.4mm Usage Use this replacement knob for patio umbrella bases, outdoor furniture, machinery, industrial equipment, home projects, jigs, and fixtures where an M8 threaded hand-tightening solution is required. Check the thread type, hole diameter, and available space before purchase to ensure compatibility. Returns, Refunds and Replacements Delivery Timeframe Please note that we cannot guarantee the exact date of arrival, and the delivery timeframes (excluding weekends and public holidays) are as follows: For customers in Victoria, approximately 7-10 working days; For customers in NSW, SA, ACT, and QLD, approximately 9-12 working days; For customers in WA, NT, and TAS, approximately 9-12 working days.