

PrecisionGeek Blackened Steel Shoulder Thumb Screws M4×10 mm – Knurled Hand-Grip, 17 mm Total Length, Pack of 5
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1 availableAbout this item
- 📏 Full Dimensions: Thread M4×10 mm, total length 17 mm, knurled head Ø12 mm × 4 mm thick, 10 mm shoulder—precision-engineered for accurate fit and spacing.
- Set of 5 Screws: Ideal quantity for assembling panels, electronics enclosures, hi-fi equipment, jigs and fixtures.
- High-Grade Blackened Steel: Crafted from 11SMN30 steel with durable blued oxidised finish, offering corrosion resistance and a sleek black appearance.
- Ergonomic Knurled Grip: Diamond-pattern head ensures secure, tool-free tightening and loosening by hand.
- Precision CNC Machined: Manufactured on advanced machinery to tight tolerances for smooth, consistent operation.
- Shoulder Support Design: 10 mm shoulder provides stable component spacing—a reliable solution for precise assemblies.
- 🇪🇺 Produced in EU: Designed, machined and finished entirely within the European Union under rigorous quality standards.
Product description
Upgrade your fastening options with the PrecisionGeek Shoulder Thumb Screws M4×10 mm—a professional-grade solution for precise, tool-free assembly. Each screw features: Exacting Specifications: M4×10 mm threaded shaft with a total length of 17 mm. The diamond‑knurled head is 12 mm in diameter and 4 mm thick, while the 10 mm shoulder maintains consistent component spacing. Superior Construction: Forged from tough 11SMN30 steel and finished with a blackened (blued oxidised) coating, these screws resist corrosion and maintain a refined appearance. Ergonomic Design: The knurled head ensures excellent grip and lets you tighten or loosen by hand—no tools required. Precision Manufacture: CNC-machined to tight tolerances, delivering consistent thread engagement and smooth rotation. Versatile Use: Perfect for panel fittings, electronics, hi-fi gear, jigs, fixtures, or any assembly needing manual fastening. Pack of Five: Sufficient for multiple applications or replacement needs. Manufactured in the EU: Produced under strict European quality control for full traceability and consistent high standards. Whether you're a hobbyist, technician, or engineer, these shoulder thumb screws offer a reliable, ergonomic, and stylish fastening solution engineered for ease and accuracy. Thumb screws are designed to be tightened and loosened by hand. Large head diameter makes it easy to access and tighten. The thumb screw has a diamond knurled surface on its head. This gives it better gripping surface, making it easier to tighten or loosen the fastener manually. ------------------------- PrecisionGeek are very proud that our stainless steel and aluminium fittings are all made in-house on our own Star CNC Machines. From speaker spikes to banjo bolts — everything is machined from solid stainless steel and other quality grade metals to exact specifications meaning that quality control is maintained throughout the manufacturing process. It means we can react to new demands, improve and assess each component and offer the best quality solution to any requirement. It also means that we can react to new products required immediately — If you feel there is a new product which we could add to our catalogue please get in touch and we will be happy to offer a quotation. All manufactured in the EU on our own machinery — It's very rare today when many items are simply bought in. We are a company that actually cuts its own metal in-house.
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What customers say about Bigamart
10 Trustpilot reviews total, with 2 shown at a time.
I wrote to Bigamart's customer support and they accompanied the process of reshipping the item until it finally arrived. I felt a genuine effort to solve the problem till it was finally solved.
The package was here in Australia from England in a few days — so quick! Something was missing and they refunded it straight away. Pretty happy with these guys.
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