limey said:
Sorry Norm but the tensile strength of Stainless steel is twice that of regular steel.
SHCS (socket head cap screws) (steel ones) are normally rated at a much higher tensile strength than stainless hardware
There are two common types of stainless steel fasteners: corrosion-resistant stainless steel, ASTM 304 (a.k.a. 18-8) or DIN/ISO A2, and acid-resistant stainless steel, ASTM 316 or DIN/ISO A4. A2 is by far the most prevalent material, and is what is normally supplied for stainless metric fasteners.
Socket-head cap screws (SHCS) are included in the table which have a higher strength than graded fasteners, but no specific markings except for their shape.
Grade marking Material tensile strength Yield strength
N/m2 psi N/m psi
SHCS none Alloy Steel 1240 180,000 965 140,000
18-8 none 302 Stainless 690 100,000 448 65,000
316 none 316 Stainless 690 100,000 448 65,000
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