M4-0.7 x 45 mm Hex Cap Screws / Class 8.8 / Partial Thread
$848.25
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Product Description
M4-0.7 x 45 mm Hex Cap Screws / Class 8.8 / Partial Thread
Specifications
| Material | Steel |
|---|---|
| Grade | Class 8.8 |
| Size | M4-0.70 |
| Length | 45mm |
| Head Style | Hex Head |
| Drive | External Hex |
| Thread Pitch | 0.70mm |
| Thread Class | Coarse |
| Hardness | C22 - C32 |
| Tensile Strength | 116000 |
| Standard | DIN 931/933 |
| RoHS Compliance | RoHS Compliant |
| Measurement System | Metric |
| Head Height | 2.8 mm |
| Width Across Flats | 7 mm |
RoHS Compliant
Frequently Asked Questions
What does the metric class number mean?
The first number indicates tensile strength (e.g., 12 = 1,200 MPa). The second number is the yield-to-tensile ratio. So Class 12.9 has 1,220 MPa tensile strength and yield at 90% of tensile. Class 12.9 is equivalent to inch Grade 8.
What is the difference between partial thread and full thread?
Partial thread (also called shoulder bolt or tap bolt) has an unthreaded shank for shear strength. Full thread (fully threaded cap screw) provides more clamping engagement. Standard cap screws above 6 inches long are typically partial thread.
.80 x 35 MM Hex Cap Screw, Partial Thread / Class 8.8 Steel / Plain
Family: 644
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Technical Specifications
Thread Size
M4-0.70
Thread Type
Metric Coarse
Material
Steel
Grade
Class 8.8
Head Style
Hex Head
Country of Origin
Import
Thread Pitch
0.70mm
Tensile Strength
116000
Hardness
C22 - C32
SKU
644557-3900