Hexalobular Socket Head Cap Screw
ISO 14579 (Current)
- Material
- Stainless Steel, Carbon Steel, Alloy Steel
- Property Class
- 8.8, A2-70, A4-80, 10.9
- Finish
- Passivated, Plain, Blackened, Zinc Plated
- Size range
- M2–M20
Select sizes and quantities — 119 confirmed sizes to ISO 14579
| dNominal Diameter (mm) | lLength (mm) | bThread Length (mm) | PThread Pitch (mm) | dkHead Diameter (mm) | kNominal Head Height (mm) | MOQ | Quantity and inquiry |
|---|---|---|---|---|---|---|---|
| M2 | 6 | 6 | 0.4 | 3.8 | 2 | 1000 | |
| M2 | 8 | 8 | 0.4 | 3.8 | 2 | 1000 | |
| M2 | 10 | 10 | 0.4 | 3.8 | 2 | 1000 | |
| M2 | 12 | 12 | 0.4 | 3.8 | 2 | 1000 | |
| M2 | 16 | 16 | 0.4 | 3.8 | 2 | 1000 | |
| M2 | 20 | 16 | 0.4 | 3.8 | 2 | 1000 | |
| M2.5 | 6 | 6 | 0.45 | 4.5 | 2.5 | 1000 | |
| M2.5 | 8 | 8 | 0.45 | 4.5 | 2.5 | 1000 | |
| M2.5 | 10 | 10 | 0.45 | 4.5 | 2.5 | 1000 | |
| M2.5 | 12 | 12 | 0.45 | 4.5 | 2.5 | 1000 | |
| M2.5 | 16 | 16 | 0.45 | 4.5 | 2.5 | 1000 | |
| M2.5 | 20 | 17 | 0.45 | 4.5 | 2.5 | 1000 | |
| M2.5 | 25 | 17 | 0.45 | 4.5 | 2.5 | 1000 | |
| M3 | 6 | 6 | 0.5 | 5.5 | 3 | 1000 | |
| M3 | 8 | 8 | 0.5 | 5.5 | 3 | 1000 | |
| M3 | 10 | 10 | 0.5 | 5.5 | 3 | 1000 |
Showing 16 of 119 sizes
M2 × 8 × 8 × 0.4 × 3.8 × 2 × 3.62 × 1.86 × 0.1 × 6 × 1.75 × 0.84 × 0.71
M2 × 10 × 10 × 0.4 × 3.8 × 2 × 3.62 × 1.86 × 0.1 × 6 × 1.75 × 0.84 × 0.71
M2 × 12 × 12 × 0.4 × 3.8 × 2 × 3.62 × 1.86 × 0.1 × 6 × 1.75 × 0.84 × 0.71
M2 × 16 × 16 × 0.4 × 3.8 × 2 × 3.62 × 1.86 × 0.1 × 6 × 1.75 × 0.84 × 0.71
M2 × 20 × 16 × 0.4 × 3.8 × 2 × 3.62 × 1.86 × 0.1 × 6 × 1.75 × 0.84 × 0.71
M2.5 × 6 × 6 × 0.45 × 4.5 × 2.5 × 4.32 × 2.36 × 0.1 × 8 × 2.4 × 1.04 × 0.91
M2.5 × 8 × 8 × 0.45 × 4.5 × 2.5 × 4.32 × 2.36 × 0.1 × 8 × 2.4 × 1.04 × 0.91
M2.5 × 10 × 10 × 0.45 × 4.5 × 2.5 × 4.32 × 2.36 × 0.1 × 8 × 2.4 × 1.04 × 0.91
M2.5 × 12 × 12 × 0.45 × 4.5 × 2.5 × 4.32 × 2.36 × 0.1 × 8 × 2.4 × 1.04 × 0.91
M2.5 × 16 × 16 × 0.45 × 4.5 × 2.5 × 4.32 × 2.36 × 0.1 × 8 × 2.4 × 1.04 × 0.91
M2.5 × 20 × 17 × 0.45 × 4.5 × 2.5 × 4.32 × 2.36 × 0.1 × 8 × 2.4 × 1.04 × 0.91
M2.5 × 25 × 17 × 0.45 × 4.5 × 2.5 × 4.32 × 2.36 × 0.1 × 8 × 2.4 × 1.04 × 0.91
M3 × 6 × 6 × 0.5 × 5.5 × 3 × 5.32 × 2.86 × 0.1 × 10 × 2.8 × 1.27 × 1.01
M3 × 8 × 8 × 0.5 × 5.5 × 3 × 5.32 × 2.86 × 0.1 × 10 × 2.8 × 1.27 × 1.01
M3 × 10 × 10 × 0.5 × 5.5 × 3 × 5.32 × 2.86 × 0.1 × 10 × 2.8 × 1.27 × 1.01
Product details
- Description
- This hexalobular socket head cap screw is manufactured to ISO 14579. It features a cylindrical head with an internal hexalobular drive, designed for applications where a low-profile, tamper-resistant fastening is required. The screw is available in metric diameters from M2 to M20, in carbon steel grades 8.8 and 10.9, and stainless steel grades A2-70 and A4-80. Surface finishes include blackened, zinc plated, plain, and passivated. When requesting a quotation, specify the diameter, length, material, grade, and finish required.
- Features
- Cylindrical head with internal hexalobular drive · Threaded over the full length up to the head · Available in M2 to M20 diameters · Supplied in carbon steel and stainless steel with multiple finish options
- Applications
- Machine tool and jig assembly, Compact joints where a counterbored seat is used, Automation and equipment frames, Mould and die assembly
Order assurance
Confirmed for the quoted product and order.Reports & inspection
Agreed in the quotation.
- EN 10204 3.1 material certificate
- Dimensional inspection report
- Certificate of conformity
- Mechanical test report
- Chemical analysis report
- Coating inspection report
- Batch and lot traceability
Packaging & delivery
Options we supply.
- Bulk carton packing
- Small boxes with outer cartons
- Palletized shipment
- Fumigation-free pallets
- Inner poly bags
- Buyer branding and labels
Product questions
What sizes of Hexalobular Socket Head Cap Screw do you supply?
Execution standard: ISO 14579. The confirmed specification table covers M2–M20 diameters and 6–120 lengths. Use the specification table to select the exact variant required for quotation.
Which materials, grades and finishes can I order?
Material: Stainless Steel, Carbon Steel, Alloy Steel; Property class: 8.8, A2-70, A4-80, 10.9; Finish: Passivated, Plain, Blackened, Zinc Plated. Availability should be confirmed against the selected specification and order quantity.
Where are these cap screws typically used?
Typical applications include Machine tool and jig assembly, Compact joints where a counterbored seat is used, Automation and equipment frames, Mould and die assembly. Final suitability depends on the selected material, grade, finish and operating conditions.







