All BZP UNF Hex Set Screws/Bolts supplied by Grove Components are fabricated from High-Tensile Steel (designated as “Grade 5", "Class 8.8" or "S"). BZP Full Nuts and Half Nuts (Locknuts) are Grade 1 Steel.
All BZP Metric Hex Set Screws/Bolts supplied by Grove Components are fabricated from High-Tensile Steel (designated "Class 8.8"). BZP Full Nuts and Half Nuts (Locknuts) are Grade 1 Steel.