Name: Square Head Machines bolts
Description: A low or medium carbon steel, externally threaded mechanical device 1/4" diameter or larger, with a trimmed square shaped external wrenching head.
Applications: Offers greater bearing surface for wrenching than hex head bolts.
Material: Carbon steel and stailess sterel A2 and A4
Size: 1/4" up to 1-1/2"
Description | A low or medium carbon steel, externally threaded mechanical device 1/4" diameter or larger, with a trimmed square shaped external wrenching head. |
Applications/ | Offers greater bearing surface for wrenching than hex head bolts. |
Material | Bolts shall be made from a carbon steel which conforms to the following chemical composition requirements-- Phosphorus: 0.06% maximum; Sulfur: 0.15% maximum |
Hardness | Bolts of a length less than 3 times diameter: Rockwell B69-100 Bolts of a length 3 times diameter and longer: Rockwell B100 maximum |
Tensile Strength | 60,000 psi. minimum |
| Elongation in 2 in. | 18% minimum |
