PRODUCT DATA SHEET · Hex Socket Head Cap Screw
Hex Socket Head Cap Screw — Round Head
A2 (STS304Cu) · Pickled
Hex Socket Head Cap Screw
Custom SpecificationAvailable
Length AdjustmentAvailable
MOQ applies · Enquire
Representative item: SMMWSB080-0350
| Manufacturing Basis | JK Standard (ref. KS B 1003) |
|---|---|
| Head Type | Round Head |
| Material | A2 (STS304Cu) |
| Property Class | A2-50 |
| Finish | Pickled |
| Size Range | M3 ~ M8 |
| Items Listed | 2 |
Mechanical Properties (KS B 0233 · ISO 3506-1)
| Min. Tensile Strength | 500 min. N/mm² |
|---|---|
| 0.2% Proof Stress | 210 min. N/mm² |
| Notes | Soft (not work hardened) austenitic |
3D and 2D data based on actual production parts for every item. In-house inspection per lot; test certificates (material, product inspection, tensile, hardness, etc.) available.
Standard Industrial Stock Item — JK Standard refers to the in-house manufacturing standard of Jungkum Fastener Industrial Co., Ltd. This item is produced and controlled under that standard, which references the relevant public standards. Applications requiring full KS-standard compliance (e.g. defense, nuclear power) are handled on a dedicated production line — please contact us.
Dimensions Unit: mm — from production drawings
| Nominal Diameter | Pitch | Head Dia. D | Head Height H | Socket Size |
|---|---|---|---|---|
| M3 | 0.5 | 5.7 | 1.65 | 2 |
| M8 | 1.25 | 14 | 4.4 | 5 |
※ Representative dimensions; tolerances are per the drawing. Detailed tolerances are provided with a quotation or drawing request.
Size Matrix Nominal diameter × length (mm) — click a cell to open that item
※ Values in this document are for reference only and are not guaranteed. Verification under actual service conditions is recommended.
※ This series is manufactured and controlled under our in-house standards, which reference the relevant public standards. Applications requiring full KS-standard compliance (e.g. defense, nuclear power) are handled on a dedicated line.
※ Sizes not listed can also be discussed — call +82-32-821-4910
JUNGKUM FASTENER INDUSTRIAL CO., LTD. · 37 Eunbong-ro, Namdong-gu, Incheon, Korea · www.jungkum.com · Printed
