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SAE GR8 — Bolt Specifications
0.25 to 1.0 · 896 MPa yield, 1,034 MPa tensile, 150 ksi
SAE Grade 8 (SAE J429) is a medium carbon alloy, q&t hex-head structural bolt grade with tensile strength 150 ksi (1,034 MPa), yield strength 130 ksi (896 MPa), proof load 120 ksi. Covers 10 nominal diameters from 0.250 to 1 in, with tensile capacities from 4.77 to 90.9 kips. Specified hardness: 33-39 HRC.
- 0.25Nominal Diameter: 0.25nominal diameter 0.25
- 0.3125Nominal Diameter: 0.3125nominal diameter 0.3125
- 0.375Nominal Diameter: 0.375nominal diameter 0.375
- 0.4375Nominal Diameter: 0.4375nominal diameter 0.4375
- 0.5Nominal Diameter: 0.5nominal diameter 0.5
- 0.5625Nominal Diameter: 0.5625nominal diameter 0.5625
- 0.625Nominal Diameter: 0.625nominal diameter 0.625
- 0.75Nominal Diameter: 0.75nominal diameter 0.75
- 0.875Nominal Diameter: 0.875nominal diameter 0.875
- 1.0Nominal Diameter: 1.0nominal diameter 1.0