5/8"-18 x 8 1/2" Hex Cap Screws / Medium Carbon Steel / Grade 8 / Zinc Yellow / Made in USA / SAE J429 Grade 8; ASME B18.2.1
$512.88
Same-Day Shipping
Certified Specs
Volume Pricing
Product Description
5/8"-18 x 8 1/2" Hex Cap Screws / Medium Carbon Steel / Grade 8 / Zinc Yellow / Made in USA / SAE J429 Grade 8; ASME B18.2.1
Specifications
| Material | Alloy Steel |
|---|---|
| Finish | Zinc Yellow |
| Grade | Grade 8 |
| Size | 5/8"-18 |
| Length | 8 1/2" |
| Head Style | Hex Head |
| Drive | External Hex |
| Thread Pitch | 18 TPI |
| Thread Class | Fine |
| Hardness | C33 - C39 |
| Tensile Strength | 150000 |
| Standard | ASME B18.2.1 |
| RoHS Compliance | RoHS Compliant |
| Measurement System | Inch |
| Head Height | 25/64" |
| Width Across Flats | 15/16" |
RoHS Compliant
Frequently Asked Questions
What is the difference between Grade 5 and Grade 8?
Grade 5 (medium carbon steel, 120 ksi tensile strength) is suitable for most industrial applications. Grade 8 (alloy steel, 150 ksi tensile strength) is used for high-strength applications like automotive suspension and machinery. Grade 5 hex heads have 3 radial lines; Grade 8 has 6 radial lines.
Hex Cap Screw, Full Thread / Grade 8 Steel / Zinc Bake
Family: 454
Select size and quantity, then add to cart
Loading filters...
|
Loading family products...
|
Technical Specifications
Thread Size
5/8"-18
Thread Type
Fine (UNF)
Material
Alloy Steel
Grade
Grade 8
Head Style
Hex Head
Country of Origin
USA
Thread Pitch
18 TPI
Tensile Strength
150000
Hardness
C33 - C39
SKU
454810-50
Compliance & Certifications
DFARS Compliant
Defense Acquisition Regulations
Need documentation? Request compliance certificates