1/4"-20 x 2 1/4" Hex Cap Screws, Partial Thread / Medium Carbon Steel / Grade 9 (L9) / Zinc Yellow / Made in USA / IFI-144 Grade L9; ASME B18.2.1
$770.43
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Product Description
1/4"-20 x 2 1/4" Hex Cap Screws, Partial Thread / Medium Carbon Steel / Grade 9 (L9) / Zinc Yellow / Made in USA / IFI-144 Grade L9; ASME B18.2.1
Specifications
| Material | Alloy Steel |
|---|---|
| Finish | Zinc Yellow |
| Grade | Grade 9 (L9) |
| Size | 1/4"-20 |
| Length | 2 1/4" |
| Head Style | Hex Head |
| Drive | External Hex |
| Thread Pitch | 20 TPI |
| Thread Class | Coarse |
| Hardness | C38 - C42 |
| Tensile Strength | 180000 |
| Standard | ASME B18.2.1 |
| RoHS Compliance | RoHS Compliant |
| Measurement System | Inch |
| Head Height | 11/64" |
| Width Across Flats | 7/16" |
RoHS Compliant
Frequently Asked Questions
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.
Hex Cap Screw / L9 Steel / Zinc
Family: 440
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Technical Specifications
Thread Size
1/4"-20
Thread Type
Coarse (UNC)
Material
Alloy Steel
Grade
Grade 9 (L9)
Head Style
Hex Head
Country of Origin
USA
Thread Pitch
20 TPI
Tensile Strength
180000
Hardness
C38 - C42
SKU
440020-1000
Compliance & Certifications
DFARS Compliant
Defense Acquisition Regulations
Need documentation? Request compliance certificates