Professional Thumb Screw Manufacturer - Machine Thread with Knurled Head

ISO-Compliant Stainless Steel Thumb Screws with 110 Vertical Lines for Tool-Free Assembly

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Need Thumb Screws That Your Technicians Can Install Without Tools During Field Service?

Our machine thread thumb screws feature 110 precision vertical lines for exceptional grip, enabling tool-free installation and removal even with gloved hands. ISO-inspected quality ensures consistent thread engagement in your electronic enclosures and equipment panels. Available in corrosion-resistant 304SS and 316SS grades with full dimensional verification. Request samples to test in your assembly line today.

With 45 years of fastener manufacturing expertise, we specialize in producing partially threaded machine thread thumb screws ranging from M1.6 to M16 in head diameter and 1/8" to 12" in length. Our standard specification #8-32x3/8" thumb screw exemplifies our commitment to precision engineering, incorporating salt spray tested materials suitable for demanding industrial applications. Every batch undergoes comprehensive grip gaging, ring gage testing, and protrusion-height verification before shipping, ensuring consistent quality for OEM manufacturers requiring reliable hand-tightening fasteners for electronics, instrumentation, medical devices, and precision machinery assemblies. Contact us today for customized thumb screw solutions tailored to your specific application requirements.

Thumb Screw - Thumb Screw Machine Thread
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Thumb Screw

OE005-120118-1

Process: Threading after head formation, and acid washing being the last step
All the items are inspected during the process and before shipping, complying with ISO Working Instruction
Inspection Tools: Calipers, Protrusion-height gage, Micrometer, 2.5D and 2D projector
Measurement Points: Head diameter, Head height, Outside diameter and height of flat head under head, Total length, Grip gaging body diameter, Length of rolling, Major diameter, Thread angle, Pitch, Ring gage

Features

  • Partially Threaded Machine Thread
  • 110 Vertical Lines on the Side of the Head
  • Flat Head under Head

Specification

  • Item Specification: #8-32x3/8"
  • Available Material: 302HQ 304SS 305SS 316SS 410SS 420SS 430SS

Available Product

  • Head Diameter M1.6~M16/#00~#5/8
  • Length 1/8”~12”/3.175mm~600mm