Half a Century of Precision,
Backed by Data
JungKum Fastener has manufactured stainless and carbon steel fasteners since 1973.
We maintain 3D and 2D drawing data for every catalog item, with traceability linked from the raw material coil to the shipped lot.
Why JungKum Fastener
In-House A2-80 Ultra-High Strength
We developed A2-80 stainless screws with a tensile strength of 800 N/mm² or higher — 1.6 times that of common commercial grades (500 N/mm²). Catalog stock items are A2-50; A2-70, A2-80, A4-70 and A4-80 are produced to order — please contact us to discuss.
Digital Data for Every Item
We hold 3D models and 2D drawings for every catalog item, modeled from actual production parts. View them in your browser and download the size-matrix data sheet as PDF — cutting your design review time.
Lot-Level Traceability
From raw material receipt to shipment, everything is linked by a single lot number. Test certificates are issued from the inspection data of the lot actually delivered to you, and are not issued without a verified shipping record.
About 3,000 Items in Stock
We keep stock from M1.4 through M12 to meet urgent lead times. For sizes not listed, we can discuss production based on our history of roughly 15,000 different items.
Industries We Serve
From electronics to defense — supplied to each industry's quality requirements.
Just Tell Us the Specification
We reply within 24 business hours. You do not need to know the part number.