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Captive Knurled Thumb Screw in Stainless Steel CNC Machining Services Product
Custom
Shop durable slotted screws for simple, tool-friendly fastening in electronics, furniture, and vintage restoration. Steel and brass options. Bulk pricing. Order now.
minimum order
1000 pieces
Quantity
US $0.10 - US $0.50 / pieces
Shop durable slotted screws for simple, tool-friendly fastening in electronics, furniture, and vintage restoration. Steel and brass options. Bulk pricing. Order now.
Key attributes | |
|---|---|
| Finish | Black, Zinc, Plain, Black Oxide, Zinc Plated, Chrome Plated, Silver Plated, Black Anodized |
| Material | Brass, Stainless Steel, Steel, Aluminium, Nickel, Bronze |
| Measurement System | Metric |
| Place of Origin | Guangdong, China |
| Head Style | Pan, Truss, Flat, Oval, Round, Hex, Binding |
| Model Number | Custom |
| Size | Custom |
| MOQ | 1000pcs |
| Color | Customized Color |
| Tolerance | 0.01 - ±0.003mm |
| Package | Polybag + Carton |
| Service | Customized OEM |
| Delivery Time | 7-25 working Days |
· Product Overview
This Precision Stainless Steel Knurled Thumb Screw is engineered for reliable manual adjustment and secure fastening in diverse applications. Featuring a knurled grip for enhanced tactile control and a corrosion-resistant stainless steel construction, it delivers exceptional durability, precise functionality, and ease of use. Ideal for scenarios requiring tool-free adjustments or frequent tightening/loosening, this screw ensures consistent performance in industrial, medical, and consumer equipment.
· Core Specifications
- Material: 304 Stainless Steel (or 316 Stainless Steel for extreme corrosion resistance) – offering superior strength, rust-proof properties, and compatibility with sanitary or harsh environments.
- Process Standard:
- CNC Turning & Knurling: Achieves dimensional tolerance within ±0.02mm and a precise knurled pattern for optimal grip.
- Thread Precision: Manufactured with accurate threading (e.g., M3, M4, M5 – customizable) to ensure secure mating with nuts or threaded holes.
- Surface Treatment: Passivation (standard) to enhance corrosion resistance; optional electropolishing for a smoother finish.
· Application Scenarios
- Industrial Equipment: Manual adjustments in machinery, automation panels, conveyor systems, and tool fixtures.
- Medical Devices: Fastening components in diagnostic tools, surgical instruments, and portable medical equipment (benefiting from stainless steel’s biocompatibility).
- Electronics & Instruments: Secure mounting in test equipment, control panels, and consumer electronics requiring tool-free access.
- Furniture & Hardware: Adjustments in custom furniture, cabinetry, and hardware fixtures where manual tightening is preferred.
· Production Process Introduction
- Material Preparation: Source certified stainless steel bars (304/316) and conduct chemical composition and mechanical property testing.
- CNC Turning: Shape the screw body, including the head, shank, and preliminary thread features.
- Knurling: Apply precision knurling to the head for enhanced grip, using custom tooling to achieve consistent texture and depth.
- Thread Machining: Cut accurate threads (e.g., metric, imperial) via CNC threading processes.
- Surface Treatment: Perform passivation to boost corrosion resistance; optional electropolishing for aesthetic or sanitary requirements.
- Quality Inspection: Verify dimensional accuracy (via CMM and thread gauges), knurling integrity, and corrosion resistance through standardized tests.
· Packaging and Shipping Methods
- Packaging: Each screw is individually wrapped in anti-scratch film and placed in labeled plastic bags. Bulk orders are packed in sturdy cartons with partitioned foam to prevent contact damage during transit.
- Shipping: Supports International Express (DHL, FedEx, UPS), Air Freight, and Sea Freight. Tracking information is provided for all shipments, and consolidated shipping options are available for cost efficiency.
· Process
· Frequently Asked Questions (FAQ)
Q1: What is the Minimum Order Quantity (MOQ)?
A1: For standard sizes (e.g., M3, M4, M5), the MOQ is 500 pieces per size. For fully custom specifications (thread, length, knurling style), the MOQ is 1,000 pieces (negotiable for prototype orders).
Q2: What is the Lead Time?
A2: Standard orders ship within 7–10 working days. Custom orders requiring unique tooling or surface treatments take 15–20 working days.
Q3: Can I Customize This Thumb Screw?
A3: Yes. Customization is available for thread type (metric/imperial), length, head diameter, knurling pattern, material (304/316 stainless steel), and surface finish (passivation/electropolishing). Provide your technical drawings or specifications for a tailored solution.
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