Precise,
Diverse.
From cold forging to precision machining and plating. 14 categories and 500+ specifications of critical fasteners for automotive, electronics, and construction.
Wherever fasteners are needed.
Daesung Fastener's products are responsible for critical fastening in Korea's automotive industry, and also supply precision fastening components to the electronics sector.
Core partner of the automotive industry.
As a Hyundai/Kia SQ A-Grade supplier, we have provided precision fasteners for automotive electrical systems, body structures, and interior components for 36 years.
Precision fastening for electronics.
Supplying precision-machined fasteners for electronics assembly, precision connectors, and other applications requiring high-precision fastening.
13 categories,
500+ specifications.
From Conical to HEX, FLANGE, INSERT, T-Bolt and more. Each category is produced from SWCH45F · SCM435 · SCM440 grades with phosphate, ZnNi, and other finishes.
Conical Bolt
Square-head and conical-form precision bolts. Widely used in automotive electrical fastening.
Round Square Bolt
Round-head bolts with a square neck. Used in body structure fastening.
Insert Bolt
Square-head insert bolts. Available in various specifications for precision fastening.
T-Bolt
T-shaped high-tensile bolts. Used in specialty applications such as sliding channel fastening.
Bending Clamp Bolt
Bent-form bolts for clamp use. Used in hose and pipe fastening.
Square Stud Bolt
Square-head stud bolts, threaded at both ends. Used for bi-directional fastening.
Fork Bolt
Bolts with a fork-shaped head. Available in left- and right-headed specifications.
Press-Fit Bolt
Press-fit bolts secured to the base material. Precise press-fit force control available.
Flange Bolt
Integrated flange bolts in high-tensile grades. Widely used in automotive engine and drivetrain applications.
Hex Bolt
Standard high-tensile hex-head bolts. Available in various washer-combined specifications.
Socket Head Bolt
Hex-socket head precision bolts. Suited for fastening in tight spaces.
Round Head Bolt
Round-form, cross-recessed head bolts. Widely used in electronics assembly.
Flat Head Bolt
Countersunk-form flush-mount bolts. Used for fastening with a flat finished surface.
10.5M units/month,
ample capacity.
Both forging and rolling lines operate with sufficient headroom — maintaining production stability even under sudden order spikes.
Top products
at a glance.
Compare core specifications of 7 representative products at a glance. The full catalog is available as a PDF download.
Product Specification Sheet
Full Catalog PDF| Product | Material | Hardness | Size | Plating | Application |
|---|---|---|---|---|---|
| FLANGE BOLT | SCM435 | 12.9T | M6 ~ M12 | Geomet · Phosphate | Engine · Drivetrain |
| HEX BOLT | SWCH45F · SCM435 | 8.8T~12.9T | M6 ~ M12 | Zn · Phosphate | Structure · Trim |
| Conical BOLT | SWCH45F · SUS | 8.8T | M5 ~ M10 | Sn+Nip+Cu | Electrical |
| Socket BOLT | SCM435 | 10.9T~12.9T | M6 ~ M8 | Zn · Phosphate | Precision |
| T-BOLT | SCM435 | 10.9T | M6 | ZnNi (Bake-out) | Chassis · Slot |
| INSERT BOLT | SWCH45F | 8.8T | M5 ~ M6 | ZnNi · Zn | Molded Insert |
| Square STUD BOLT | SCM435 | 10.9T | M6 | Zn (Bake-out) | EV Battery |
Can't find
the spec you need?
Beyond the standard catalog, Daesung Fastener accepts custom production based on customer drawings. Share specifications and quantities — we will reply with a quote within 24 hours.