Custom Knurled Thumb Screw Stainless and Carbon Steel Hand Screw

Short Description:

Made by YH Fastener these hand tightening thumb screws adopt stainless steel and carbon steel as main raw materials Standard sizes in stock custom dimension and surface treatment available for electronics instruments and furniture assembly

Product Detail

Product Tags

Product Overview

We are local fastener maker focused on all kinds of precision thumb screws used for equipment assembly and electronic fitting. Our main stock items contain regular knurled thumb screw, captive anti-drop thumb screw, shoulder positioning screw and colorful anodized aluminum thumb screw.

We keep full size range from small M1.6 up to M12 metric thread, plus popular UNC inch specs: 4-40, 6-32, 8-32, 1/4-20. All items are processed on CNC lathe with precise tapping, each piece checked dimension before packing. Standard sizes always ready for quick delivery, and we accept custom production against customer drawing or physical sample, from raw material pick to surface treatment.

Key Advantages

Tool-free tightening: Anti-slip knurl on screw head makes hand tightening easy, no screwdriver needed. Great for parts that need frequent disassembly and adjustment.
Multiple material choices: 304 stainless for rust resistance, brass with good conductivity for electrical parts, aluminum for colored anodizing to match machine appearance.
Diverse surface options: Carbon steel can be zinc plated, nickel plated or black oxide; aluminum screws can be done in black, red, blue, gold and other custom colors via anodizing process.
Various structures in stock: Full thread knurled style, shoulder step design for fixed installation depth, captive type to stop screw falling out during maintenance.
Standard-compliant threads: Thread made following DIN and ANSI standard, smooth fit with matched nut and tapped hole, hard to slip thread after repeated tightening and long time vibration.

Product Specs

Thread Options

Metric: M1.6, M2, M3, M4, M5, M6, M8, M12, tiny micro size can be customized

UNC Inch: 4-40, 6-32, 8-32, 1/4-20

Dimensions & Types

Length Range: 3mm to 100mm, non-standard length acceptable

Head Types: Round knurled head, slotted flat head, stepped shoulder head

Application Range

Electronic field: PC case panel, cabinet, monitor bracket, security camera, audio shell fixing
Precision device: Testing fixture, lab equipment, medical accessory, optical instrument spare parts
Lamp & furniture: Lamp base fixing, adjustable shelf, quick assemble furniture parts
Other uses: 3D printer parts, helmet accessory, bicycle small fitting and custom fixture hardware

Purchase & Custom Service

Direct factory sales without middle agent to keep reasonable bulk price:

Custom work available on head diameter, shoulder height, thread length and logo marking, small trial order supported before mass production.
Every production batch goes through dimension check and salt spray test, inspection report can be offered when needed.
Low MOQ for stocked items, MOQ negotiable for non-standard custom screws.
Stock goods ship in 3-7 working days, custom orders finished within 7-15 days after drawing confirmation.

We are YH Fastener with abundant fastener production experience, specialized in custom thumb screw production. With complete CNC production lines, we strictly manage quality during whole production process. Regular items ready in stock, non-standard products can be customized based on your drawings or samples.