SBAC TS 21 Issue 11 (2004)
SBAC TS 21 Issue 11 (2004) Manufacturing Specification For Bolts, 900 Mpa (130,000 Lbf/in[2]) - Tensile At Room Temperature Gives requirements for forged bolts in BS HR650, EN 2399 or EN 3639 material with rolled underhead radii.