5/16"-18 x 1/2" Hex Flange-Frame Bolts / Grade 8 / Black Phos
- Steel
- Grade 8
- Black Phosphate
- 18 TPI · Coarse
$191.09
$1.27 / pc
Package of 150
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Product Description
5/16"-18 x 1/2" Hex Flange-Frame Bolts / Grade 8 / Black Phos
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.
$191.09
$1.27/pc
Hex Flange-Frame Bolts / Grade 8 / Black Phos
Family: BF
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5/16"-18 x 1/2" Hex Flange-Frame Bolts / Grade 8 / Black Phos
SKU: 3108BF-150
Technical Specifications
Thread Size
5/16"-18
Thread Series
UNC
Thread Pitch
18 TPI
Length
1/2"
Material
Steel
Grade
Grade 8
Finish
Black Phosphate
Drive
External Hex
Head Style
Hex Flange Head
Country of Origin
Import
Point Type
Chamfered
Measurement System
Inch
Width Across Flats
1/2"
SKU
3108BF-150
https://www.ecomfasteners.com/products/5-16-18-x-1-2-hex-flange-frame-bolts-grade-8-black-phos · Printed