ISO 4762 Socket Head Cap Screws

DIN Equivalent: DIN 912 | Metric Hex Socket Cap Screws

ISO 4762 defines hexagon socket head cap screws β€” the most widely used metric fasteners in precision machinery, automotive, and engineering applications. These screws feature a cylindrical head with internal hex (Allen) drive for high torque capacity.

Quick Specifications

Drive Type
Internal Hex
Head Style
Cylindrical
Size Range
M1.6 – M64
Property Classes
8.8, 10.9, 12.9
DIN Equivalent
DIN 912

Key Features

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High Torque Capacity

Internal hex drive allows higher torque application than Phillips or slotted drives without cam-out.

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Compact Head Profile

Cylindrical head sits closer to the surface than hex bolts, ideal for tight spaces and flush mounting.

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High Strength Options

Available in Class 12.9 (176,900 PSI tensile) β€” stronger than Grade 8 SAE fasteners.

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Precision Threads

Available in coarse and fine pitch for optimal thread engagement in different materials.

Dimension Chart

Size Pitch (Coarse) Head Dia. (dk) Head Height (k) Hex Key Size
M3 0.5 mm 5.5 mm 3.0 mm 2.5 mm
M4 0.7 mm 7.0 mm 4.0 mm 3 mm
M5 0.8 mm 8.5 mm 5.0 mm 4 mm
M6 1.0 mm 10.0 mm 6.0 mm 5 mm
M8 1.25 mm 13.0 mm 8.0 mm 6 mm
M10 1.5 mm 16.0 mm 10.0 mm 8 mm
M12 1.75 mm 18.0 mm 12.0 mm 10 mm
M16 2.0 mm 24.0 mm 16.0 mm 14 mm
M20 2.5 mm 30.0 mm 20.0 mm 17 mm

Property Classes

8.8
Class 8.8
Medium Carbon Steel
Tensile
116,000 PSI
Yield
92,800 PSI

Equivalent to SAE Grade 5. General purpose applications, machinery, automotive.

10.9
Class 10.9
Alloy Steel, Q&T
Tensile
150,800 PSI
Yield
136,300 PSI

Equivalent to SAE Grade 8. High-stress, structural, heavy equipment.

12.9
Class 12.9
Alloy Steel, Heat Treated
Tensile
176,900 PSI
Yield
159,500 PSI

Highest strength. Critical applications, motorsport, aerospace.

Common Applications

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Machine Tools
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Automotive
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Robotics
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Medical Devices
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Aerospace
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Industrial Equipment

ISO 4762 vs DIN 912

πŸ’‘ Are They Interchangeable?

Yes β€” ISO 4762 and DIN 912 are dimensionally identical and fully interchangeable for all practical applications.

Shop ISO 4762 Socket Cap Screws

Available in Class 8.8, 10.9, 12.9, and stainless steel. Sizes M3 through M24.

Shop Socket Cap Screws

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