Street Address: No.11 Yaowu St, Ningbo, Zhejiang, China (Mainland)
Country/Region: China
Specifications: The product is grade 12.9 high tensile hexagon socket head cap screws for industry and machinery use. Grade 12.9 bolts are most often supplied as socket head bolts or socket head cap screws. Grade 12.9 bolts are tightened with a torque wrench, right up to their 90% proof load. Material: SCM 435H Alloy Steel